[10] "Designated riflemen" in every squad were ordered to use their weapons on the fully automatic setting, while other troops were required to use their rifle's semi-automatic mode on most occasions to increase accuracy and conserve ammunition. Belts are typically held in a hard plastic or soft canvas box attached to the underside of the weapon. The Naval Surface Warfare Center, Crane Division, Crane, Indiana, is the contracting activity (N00164-18-D-JN49). [36][37], The M249 LMG entered service in 1984 as the M249 SAW. Matt is also co-founder of The Armourers Bench, a video series on historically significant small arms. Backpack, CORDURA fabric 5. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. [29][30], The new gun entered U.S. Army service as the M249 squad automatic weapon in 1984, and was adopted by the U.S. Marine Corps a year later. Does the MK48 do a better job destroying enemy vehicles than the MK249, or are they both equals? 2. The contract was awarded on behalf ofNaval Surface Warfare Center, Crane Division. Which LMG is better (performance-wise) and why? I thought the whole . Phone Support M-F 7am-5pm PST. [6] The Marines started fielding the M27 in 2010, but kept both weapons in the inventory due to the M249's greater ammunition capacity and higher sustained fire rate; rifle companies are typically issued 27 IARs and six SAWs. The Mk 46 is a development of the M249 Special Purpose Weapon (SPW), which was the initial attempt to create SOF-specific SAW. The SPW's barrel is longer than the M249 Para but shorter than the full-length SAW. -The RPK-74 can use 75-round drums as well as every type of 5.45x39 magazine. Before starting the inspection DO NOT actuate the trigger until the weapon has been cleared. Soldiers were requesting replacements and new features, and there are reports of soldiers holding their weapons together with duct tape. The official Funker530 iOS/Android app (https://funker530.app.link/AppDownload) is where you can watch the latest videos from Ukraine, analyzed by our team o. [17] Neither design was finalized by March 1972, when the Army published the specifications document for the planned SAW. The Mk249 is fake, so do the M60 replacement. SPECS: Will catch brass, belted ammunition, and disintegrating m27 belt links Does Not interfere with immediate action on M249 - allows access to Charging Handle. The M249 has been designated as two separate models, the Automatic Rifle (AR) and Light Machine Gun (LMG). Have you ever wondered what it would be like to a full auto belt dump on a Mk46/ M249 . I plan to get another at some point. Click Here to see available color swatches/patterns. Inspect the equipment for damage incurred during shipment. The testing also showed that the 6.5mm versions of the weapons have 40 percent greater range and less recoil than their 7.62mm counterparts. Mk48 hits harder, but the 249 rof absolutely rips, so it feels equal to me. Regardless of weapon ownership, initial gaging/inspection will be one year after receipt of new or overhauled weapons. See, I just like using them. This shell catcher is feature driven, including 4 position detent 180 degree motion, gas venting, throw lever mount, and NO brass catcher related malfunctions. In 1965, the U.S. Army and U.S. Marine Corps' primary machine guns were the M2 Browning and M60. Special tools authorized for unit maintenance are listed in appendix B and illustrated in appendix C. For authorized common tools and equipment refer to Modified Table of Organization and Equipment (MTOE) applicable to your unit. It shares a 70% parts commonality with the M249. 3D model size: X 138 Y 97.5 Z 88 mm. Potentially unpopular opinion: El Cerebro mission is freaky! SUPPRESSED?For those of you that have seen my first video on the Mk. The facility to accept 30-round magazines was ditched in order to save weight. U.S. Special Operations Command plans on continuing to equip operators with FN Americas Mk 46 spec-ops designed M249 Squad Automatic By M249 users had the lowest levels of satisfaction with weapon maintainability at 70 percent (239 troops), most due to the difficulty in removing and receiving small components and poor corrosion resistance. Yeah. The weapon was introduced in 1984 after being judged most effective (compared to a number of candidate weapons) to address the lack of automatic firepower in small units. 40 percent of users preferred feeding the SAW with the soft 100-round pouch, while 21 percent chose the soft and hard 200-round pouches each. MG121 - Weapon Details MK48 MK48 - Location Overview maps The LMG Blueprint is in the Liberty Area at the Auroa Parliament. Note the flexible feed chute system used. M145 MG Optic Elcan for M249 or M240B as new with Killflash and camo Pouch 650.00 MK-46 rail handguard very rare 3 rail for top of barrel, SOCCOM Contract only new 125.00 MK48 feed tray very rare 7.62 new in wrap, Part of 5.56 to 7.62 conversion kit, 375.00 OvertDefense.com Managing Editor. Production of the converted XM235 was awarded to Ford Aerospace, and its designation was changed to XM248. [26] In September, FN was awarded a "maturity phase" contract for further development of the XM249,[27] and testing of the new weapon began in June 1981. The adverse setting increases the cyclic rate of fire from 700850 rounds per minute to 9501,150 rounds per minute and is used only in extreme environmental conditions or when heavy fouling is present in the weapon's gas tube. He praised the SPW variant, noting that its "short barrel and forward pistol grip allowed for very effective use of the SAW in urban terrain". The Navy SEALs, especially, were looking for a replacement to the M60, variants of which, such as the Mk 43 Mod 1, which were deemed to be unreliable. , , , Download: free Website: Thingiverse . [43] These boxes were carried in soft pouches named Case, Small Arms, Ammunition, 200-Round Magazine. Here on TFB he covers product and current military small arms news. The MK249 has slight better handling/penetration in addition the the obvious higher rate of fire. The M249 has a much higher continuous rate of fire. The weapon is fitted with the same fixed, polymer buttstock as the M249, although the metallic, collapsible buttstock from the "Para" model can be found in some models. MK 48: Pros: Aimpoint "red dot" sight, one shot kill power for zeds, camouflaged, more controllabe than M240 and functions better in crouch and stand, just as short as an M249 and is usable indoors in closed spaces. A U.S. Navy SEALs aims a Mk 48 Mod 0 from the prone position. M249 Weldment Sets $ 2,500.00 M249 Para Barrels (New) $ 725.00 M249 Operating Rods $ 700.00 M249 Collapsible Stocks (New Style) $ 685.00 M249 Para Barrels (Used) $ 575.00 M249 Long Barrels $ 500.00 M249 Long Barrels w/ Removable Gas System $ 500.00 M249 Front Rail Systems Stock Out $ 385.00 M249 Collapsible Stocks $ 325.00 Reddit and its partners use cookies and similar technologies to provide you with a better experience. The M249 is gas operated and air-cooled, it has a quick-change barrel (allowing the gunner to rapidly replace an overheated or jammed barrel), and a folding bipod attached to the front of the weapon (an M192 LGM tripod also being available). Applies to all brands of airsoft M249! The improvements to the MK 48 Mod 0 were also incorporated into the M249 series and is in service with USSOCOM as the MK 46 5.56x45mm machine gun. This site uses cookies. Seventeen percent of requests were for making the weapon lighter, and another 17 percent were for more durable belt links and drums, as well as other modifications, such as a collapsible stock. US Marine Corps only requires to conduct acceptance limited technical inspection (LTI) to include gaging on all new or rebuilt weapons. While heavier than the 5.5645mm NATO M249 due to its larger chambering and heavier barrel, the Mk 48 Mod 0 is still 17% lighter and 8.4% shorter than the M240. If a corrosion problem is identified, it can be reported using SF 368, Product Quality Deficiency Report. The weapon has only a fully automatic mode of fire. $169.00 Add to Basket M249, MK46, MK48 BARREL BAG $70.00 Add to Basket M249, MK46, MK48 FRONT SIGHT TOOL $94.00 Add to Basket Out of stock M27 LINKS FOR M249, MK46 TYPE WEAPONS $6.00 Out of stock Out of stock MK46 CONVERSION KIT TO 7.62 NATO $6,900.00 Out of stock Out of stock MK46, MK48 TRI-RAIL HANDGUARD, HDD,. No but real talk MK48 is only better at damage. U.S. Special Operations Command plans on continuing to equip operators with FN Americas Mk 46 spec-ops designed M249 Squad Automatic Weapon variant and the beefed-up Mk 48 super SAW, doubling down on the two lightweight machine guns adopted nearly 15 years ago amid a major overhaul of the militarys small arms arsenal. The Mk 48 is a gas-operated, air-cooled, belt-fed machine gun. SOCOM officials did not immediately respond to request for comment from Task & Purpose, but well update this post with more information as it becomes available. A Ranger with the 75th Ranger Regiment armed with a Mk 46 fitted with an Aimpoint red dot sight. Here are the details of SOCOMs new intermediate caliber ammo, per The War Zone: In testing in 2017, special operators shooting rifles modified to fire6.5mm Creedmoor were twice as likely to hit their targets compared those using control guns in the existing 7.62x51mm NATO cartridge. [56] The Army passed on the concept of the IAR, believing automatic rifle with a magazine would lower the effectiveness and firepower of a squad. It shares a 70% parts commonality with the M249. The MK 46 MOD 1's cold hammer-forged MIL-SPEC . Click Add to List to start building your custom catalog. A post sample sear pack and go to town. [20][21], When the time came for developmental and operational testing of the SAW candidates, three 5.56mm candidate weapons were included with the 6mm candidates: the M16 HBAR, a heavy-barrel variant of the M16 designed for prolonged firing; the Fabrique Nationale de Herstal (FN) Minimi; and the HK 23A1. It works and surprisingly well for its price so Ill be buying more for my guns, Adding to cart category.add_cart_announcement, AR15 / AR10 / SCAR compatible Brass Catcher, M249 SAW/MK46/MK48 - MID/NARROW Brass Catcher, M249 SAW/MK46 HIGH RAIL POSITION Brass Catcher, M249 SAW/MK46/MK48 LOW/WIDE Brass Catcher, Belt Fed FightLite MCR/SHRIKE/FM-9 Gen 2 Brass Catcher, AR15/AR10/SCAR 16 Brass Catcher - Operator MID, Sub Gun MP5/CZ Scorpion/EVO Brass Catcher, AR15-AR10/SCAR 17/Larue PredatOBR Brass Catcher - Operator LONG. add to list. The MK 46 MOD 1 incorporates improved receiver pins, a feed tray with retention pawls and a vented hand guard with improved heat shield and three MIL-STD-1913 rails. This is the easiest way so far to convert you airsoft M249 into a Mk48!" His writing has appeared in Aeon, the Los Angeles Review of Books, the New Republic, Pacific Standard, Smithsonian, and The Washington Post, among other publications. [38] It was praised for its extreme durability and massive firepower, though a number of areas for improvement were highlighted: the blank firing attachment fitted poorly, the bipod was very weak and broke easily, the sling attachment was awkward, and there were many slots and gaps that accumulated dirt. I tend to use the MK249 when in close quarters and the MK48 when in open environments. -The M240 and the Mk48 can only use the 100 round M240 belts. 10 Best ways to Make Money on Social Media and not waste time. For the most part they are equal. Please select your categories. While developed as a weapon for SOF, the Mk 48's portability, firepower and range led it to being introduced into frontline infantry squads in Afghanistan, where it replaced the M249 SAW. SERVICE UPON RECEIPT OF MATERIAL (Cont), Barrel Assembly and Spare Barrel Assembly. The MK46 is the 5.56x45mm SOCOM variant of the M249 (or FN Minimi) which has been significantly lightened (weighing just over 15 lbs) and is belt fed only. Discard. The MK 48 Mod 1 is a slightly upgraded version of the Mod 0. Being heavily based on the Mk 46 Mod 0, the Mk 48 Mod 0 features five MIL-STD-1913 Picatinny rails (one on top of the receiver, one on each side of the forearm/handguard, one under the handguard, and one on top of the barrel), an integral folding bipod, and a tripod-mounting lug. Only 100 are known to exist, and they command a collectors premium over a post sample 249. The US proposed a 6mm. The Mk 46 Mod 0 is almost identical to the SPW. Free online ship combat game. $659.00 Out of stock O1 M249/MK46 OP-ROD $590.00 Add to Basket O10 M249, MK46, MK48 SLIDE PIVOT. The M249 has been designated as two separate models, the Automatic Rifle (AR) and Light Machine Gun (LMG). Soldiers reported ammunition boxes rattling and falling off. Note the Aimpoint red dot sight mounted on the rail atop the receiver. [44] The modern load of ammunition carried for the weapon is 1,000 rounds in five 200-round belts, although up to 500 extra rounds generally gets loaded into 100-round soft pouches. MK48 - Location Screenshots It's in the underground entrance area of the parliament. Air Force users submit Quality Deficiency Report (QDR) in accordance with TO 00-35D-54, TM, USAF, Materiel Deficiency Reporting and Investigating System, to WR-ALC/LZBS, Robins AFB, GA 31098-5330. [46], The standard squad automatic weapon in Afghanistan is the M249 with PIP kit, which serves alongside its heavier counterpart, the M240 machine gun. The MK48 will probably suit your needs better than the MK249. On August 23, 1985, then-U.S. The weapon's barrel is detachable and features a carrying handle which can aid when changing hot barrels. Special Operations Command via Soldier Systems. Protective case for flexible hose, CORDURA fabric 6. [34], The M249 is a belt-fed light machine gun. So if ammo isn't a problem I would go with the mk48 but if it is I would go with the m249. Note the lack of bipod, carrying handle and mounting lug. Press question mark to learn the rest of the keyboard shortcuts. [45] There were many complaints about the weapons clogging up with sand after prolonged use in the desert environment. The job is to keep heads down so your team can engage, break contact, move positions and take care of anything that might arise. fnh usa fnfnh usam249 7.62mmnatomk43>m60 . [46], Operation Iraqi Freedom PEO Soldier Lessons Learned, a report on the performance of weapons in the Iraq War, was published by Lieutenant Colonel Jim Smith of the U.S. Army on May 15, 2003. Bercsny Lszl Klnleges Mveleti Zszlalj", "Legacies of War in the Company of Peace: Firearms in Nepal", "Flashback: AFP modernization 2003 to 2006", "Afghan National Security Forces Order of Battle", "PIP M249 machinegun completes acceptance", United States Army Center of Military History, https://en.wikipedia.org/w/index.php?title=M249_light_machine_gun&oldid=1132992425, 700m (2,300ft) (point target, 465mm barrel), 800m (2,600ft) (point target, 521mm barrel), Maximum weight of 5.4 kilograms (12lb), including sling, bipod, and sound suppressor, Maximum total length of 89 centimeters (35in), Engage pinpoint targets up to 600 meters (2,000ft), and, Compatible with next-generation Small Arms Fire Control systems, This page was last edited on 11 January 2023, at 18:45. Remove corrosion inhibitor from barrels. [49] As in previous conflicts, the sandy environment causes the M249s and other weapons to clog up and jam if they are not cleaned frequently. The stated requirements included:[57][58], In April 2022, the U.S. Army selected Sig Sauer as the winner of the competition; their automatic rifle is designated the XM250. The Mk 48 Mod 0 is currently in service with certain USSOCOM units, such as the U.S. Navy SEALs and Army's 75th Ranger Regiment. [33] Congress deleted funds for the M249 from the Fiscal Year 1986 defense budget, then retroactively set aside the program's prior year's funds from the M249 program for other purposes, including retirement and pay raises. This site is dedicated to discussions regarding Apocalypse Rising, the ROBLOX game created by Gusmanak and the Dualpoint Interactive team. [11] Because the M14 and M16 rifles had not been designed with sustained automatic fire in mind, they often overheated or jammed. Various nations adopted ARs and LMGs like the Minimi/M249/Mk48. The SAW can be fed from both linked ammunition and STANAG magazines (such as those used in the M16 and M4), allowing the SAW operator to use them as a source of ammunition in case they run out of belts. Heres the Department of Defenses procurement announcement in full: FN America LLC, Columbia, South Carolina, is awarded a $13,450,000 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for the production of MK46 and MK48 light machine guns, spare parts and engineering services in support of U.S. Special Operations Command. [6] In 2022, the U.S. Army selected the Sig Sauer XM250 to replace the M249. The Mk48 is a gas operated, air-cooled, fully automatic machinegun, the weapon fires from an open bolt, fed with munition belts from the left side of the receiver. The weapon has since filtered through to other SOF units such as the 75th Rangers. Press J to jump to the feed. $4.00 Add to Basket Unusual cracking, softening, swelling, or breaking of these materials may be a corrosion problem. Studies of improved 5.56mm ammunition, with better performance characteristics, began. . Most M249s were given a collapsible buttstock immediately prior to the invasion to reduce its length and make the weapons more practical for parachuting and close-quarters combat. brass and link catcher prototype test on Machine Gun Armory mk46. The M249 provides infantry squads with a high rate of machine gun fire, combined with the accuracy and portability of a rifle. [35], It fires from an open bolt and is gas operated. [1], A supply of 929 M249 SAWs was issued to personnel from the U.S. Army and Marine Corps during the Persian Gulf War. The contract represents an increase over SOCOMs $11.5 million deal in 2010 for the two weapons, which FN specially designed for Naval Special Warfare starting back in 2004. Norma Bondstrike first test on Texas feral hogs. Differences between the Mk 46 and SPW include a 4-sided rail system around the Mk 46's forearm and the SPW's callapsible buttstock is replaced with a the fixed polymer one found on the standard SAW. It mounts the MK48/MINIMI 7.62 MKIII, the M240/MAG58 and the M249/MK46/MINIMI families of weapons. I prefer the 48 since it feels like an actual mg instead of a m4 with a big ass mag, mind you I only use mg's for defensive missions. kthxbye. [14], In 1968, the Army Small Arms Program developed plans for a new 5.56mm caliber LMG, though no funds were allocated (5.56mm ammunition was viewed as underpowered by many in the armed forces). [2] The sustained rate of fire, the rate at which the gunner can fire continuously without overheating, is around 100 rounds per minute. After all, the new contract does include upgrades and engineering assistance from FN America, which might suggest that SOCOM plans on rejiggering the super SAW for the next big fight. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. There is a high degree of parts commonality between the Mk48, M249 and Mk46 machine guns, which simplifies maintenance and repair. M249, MK46 OPERATORS KIT. Next,a Soldier Story full stock M249 (1st Cav set) painted flat black Arms Rack M249 And a BBi Parastock MK46 (Raptor box set) with a surefire foregrip And finally a Crazy Dummy Mk46 Mod1 At this time, the nomenclature "Squad Automatic Weapon" (SAW) was introduced. Work will be performed in Columbia, South Carolina (85 percent); and Herstal, Belgium (15 percent), and is expected to be completed by August 2023. I constantly switch back and forth between those two. At 1,041mm (41in) long and 7.5kg (17lb) in weight (10kg (22lb) including a 200-round belt and plastic ammo box), the M249 is a cumbersome weapon.[32]. In addition, FN also holds current USSOCOM contracts for the MK 17 7.62-caliber carbine and MK 20 SSR precision rifle. Use of key words such as "corrosion", "rust", "deterioration", or "cracking" will assure that the information is identified as a CPC problem. Matt is a British historian specialising in small arms development and military history. I The SF 368 should be submitted to: AMSTA-AR-QAW-C, TACOM-ARDEC, 1 Rock Island Arsenal, Rock Island, IL 61299-7300. This mk 48 is fitted with an M4-style buttstock. The M249s air-cooled barrel is equipped with a mechanism to remove and replace the barrel assembly with a spare, this makes it easy for the operator to easily change the barrel on the field when it gets too hot during extensive amounts of fire. The ostensible goal of the smaller assault machine gun program is to give special operators an improved means of hitting targets that are out of range of 5.56x45mm weapons, such as the M249 Squad. . Over 7,000 remaining M249s were to stay in storage at depots until corrective changes could be made. a. I sold mine when I decided to depart the old shop I was tied up in rather than go through the BS of transferring it. Check for obstructions in the barrel. Surplus weapons were donated to Bolivia, Colombia and Tunisia. Designs were required to have a weight of less than 9.07kg (20lb) including 200 rounds of ammunition, and a range of at least 800meters (2,600ft). The SPW features a collapsible buttstock of the sort found on the M249 PARA. The idea that one gun will do all . A M249 Special Purpose Weapon (SPW). Jared Keller is the managing editor of Task & Purpose. While corrosion is typically associated with rusting of metals, it can also include deterioration of other materials such as rubber or plastic. We're ready to serve you. [31] It is manufactured in the FN factory in Columbia, South Carolina. The basic M249 is the same for both versions. [59], Next Generation Squad Weapon-Automatic Rifle, "Conway eyes additional testing for auto-rifle", U.S. Army Weapons Command Future Weapons Systems Division 1969, United States Army Center of Military History 1974, United States Army Center of Military History 1983, United States Army Center of Military History 1988, United States Army Center of Military History 1995, "Crew-Served Machine Guns: 5.56-mm and 7.62-mm", U.S. Army Armament, Munitions and Chemical Command 1993, "CRM D0015259.A2 Soldier Perspectives on Small Arms in Combat", "Fort Benning Soldiers evaluate redesigned buttstock for M-240B, M-249", "Corps chooses H&K to make SAW replacement", "The Corps' quest for the best rifle for infantrymen", "The Army wants to ditch the M249 SAW and give the infantry more firepower", "Army is saying goodbye to the M249 Squad Automatic Rifle after thirty years", Army chooses Sig Sauer to build its Next Generation Squad Weapon, "FNH M249S SAW Light Machine Gun Military Collector Series", "OOW M249P, la nueva ametralladora de las tropas de operaciones especiales del Ejrcito Argentino", "Lehk kulomet - 5,56 mm kulomet univerzln FN Minimi (M249 SAW) | Armda R", " M249 ", "34. The M249 looks like I could either build or buy a receiver and . The M2 was a large-caliber heavy machine gun, usually mounted on vehicles or in fixed emplacements. While the Marine Corps has 13-man squads, the Army organizes its soldiers into squads of nine and needs considerably more firepower from the squad machine gunners to make up the difference. [7], The Army decided that an individual machine gun, lighter than the M60, but with more firepower than the M16, would be advantageous; troops would no longer have to rely on rifles for automatic fire. [2], This article is about the machine gun. a. Field-strip machine gun and inspect for missing parts. [25] Testing of the four candidates resumed in April 1979. It has a heavier barrel, and the barrels are detachable and interchangeable. [19] Prior to July 1972, SAW development contracts were awarded to Maremont, Philco Ford, and the Rodman Laboratory at Rock Island Arsenal. He also runs Historical Firearms, a blog that explores the history, development and use of firearms. [7] The M60 was a more mobile general-purpose machine gun, intended to be carried by troops to provide heavy automatic fire. MK48 - Weapon Details STONER Reward for finishing the "Critical Mass" Side Mission for Schulz. The Department of Defense recently awarded FN America, a South Carolina-based arms manufacturer, a $13.45 million contract to provide both the 5.56mm Mk 46 and 7.62mm Mk 48 light machine guns to SOCOM, The Firearm Blog reports. 0 [deleted] 8 yr. ago [removed] More posts you may like r/ApocalypseRising Join [9] The Browning automatic rifle (BAR), the army's main individual machine gun since its introduction in World War I, was phased out in 1957 with the introduction of the M14 rifle (which had a fully automatic mode). Box for machine-gun type 2. [2] Through the 1960s, the introduction of a machine gun into the infantry squad was examined in various studies. d. Function, using both belted and magazine fed dummy ammunition. 80% percent of soldiers surveyed were pleased with the weapon's accuracy and lethality, yet only 64% claimed they were "confident in their weapon". The Mk 46 and Mk 48, though they eclipse their SAW cousin in range, firepower, and ergonomics, have their own unique set of problems. The round was 30 percent less susceptible to wind drift, as well, making it more precise at those distances. M249: The STANAG magazines should only be used in emergencies, however, due to their high malfunction rate. Three hundred forty-one troops were armed with M249 SAWs, making up 13 percent of the survey. A briefing slide detailing the selection of the 6.5mm Creedmoor cartridgeU.S. The magazine cartridge (NSN 1005-01-334-1507) 100 round assault pack is included for the M249 AR model. The M249 LMG is fielded with the following equipment for the machine gun role: 1. Shop Airsoft Guns, Shop By Rifle Models, M249 / MK46. They're of very little practical use except to provide suppressing fire (which, interestingly, is actually a working gameplay mechanic) with other human players. Chambers the 7.62x51mm NATO rounds, Mk48's rate of fire is around 700 rounds per minute, effectively covering up to 800 metres of range and able reach up to a maximum of 3,600 metres . the following colors/patterns are available with additional lead time: Khaki, ATAC AU, ATAC LE, ATAC FG, ATAC IX, Black Multicam, Multicam, Gray, ATAC Ghost. [39] Some claimed that the heavy-barrelled version of the M16 rifle was a more effective light machine gun. Killen Custom show how to install the Airsoft Mk48 Barrel Assembly Conversion Kit on an M249. Generally on a par with the US Navy's Mk-48 ADCAP, the Spearfish was designed to tackle similar Russian (then Soviet) high-performance submarines. [50], In December 2006, the Center for Naval Analyses (CNA) released a report on U.S. small arms in combat. The Mk 48 Mod 0 is a gas-operated, air-cooled, fully automatic belt-fed machine gun. Comparison of original Mk48 (left) and the ADCAP (right) Spearfish, UK. [12] While there was a brief flirtation with the concept of a flechette- or dart-firing Universal Machine Gun during one study, most light machine gun experiments concentrated on the Stoner 63 light machine gun, a modular weapon that could be easily modified for different purposes.