The M6A2-SRT (LWRC SRT)

About the M6A2-SRT:

The M6A2-SRT is a carbine rifle designed and manufactured in Springfield, Virginia by the Land Warfare Resources Corporation, based on the M4 Carbine, with which it shares 80% of its parts. Like the HK416 rifle, it features a proprietary short-stroke self-regulating gas piston system and bolt carrier/carrier key design, which prevents trapped gases from contacting the bolt carrier or receiver of the weapon, which reduces the heating and carbon fouling of the internals; simplifies field maintenance, and improves reliability.

Standard length barrel is 14.7 in, with a 1/7 in twist, and hard chrome lined bore (6 lands, right twist).


Type:
Assault Rifle
Place of origin:
United States
Designer:
Land Warfare Resources Corporation
Designed:
Unknown, Assumed to be 2006
Manufacturer:
Land Warfare Resources Corporation
Produced:
2006-Present
Number built:
Unknown
Variants:
M6 CP, M6A1 SOC, M6A2 DMR, SABR .308
Cartridge:
5.56x45mm NATO and 6.8 mm SPC
Action:
rotating bolt, selective fire
Rate of fire:
700-900 rounds/min
Muzzle velocity:
2800 ft/s (5.56 mm from a 14.7 in barrel)
2500 fps (6.8 mm SPC from a 14.7 in barrel)
Feed system:
Detachable Box Magazine

AR-15 Variants:
AR-10AR-15M16/A1/A2/A3/A4M4/A1 CarbineDiemaco C7/C8Colt Commando, XM177, CAR-15MSSR rifleColt 9mm SMGBushmaster M4SR-556HK416HK417REC7M231 FPWSDM-RSAM-RMark 11 'SWS' / SR-25M110 SASSMark 12 'SPR'SEAL Recon RifleMark 18 'CQBR'Ares ShrikeLa France M16KDIO S-5.56Norinco CQSR-47Colt Automatic Rifle / CARLWRC IAR • LWRC SRT

About the 6.8 mm SPC round:

The 6.8 mm Remington SPC (or 6.8x43mm) is a new rifle cartridge that was developed with collaboration from individual members of US SOCOM. Based upon the .30 Remington cartridge, it is midway between the 5.56x45mm NATO and 7.62x39mm in bore diameter and velocity. It is particularly adaptable to current 5.56 mm NATO firearms, the cartridge overall length being comparable.

Though ballistically similar to the 1950s-era .280 British, improved propellant powders allow the 6.8 mm to have a smaller case. The 6.8 mm SPC (Special Purpose Cartridge) has a muzzle velocity of 2,625 feet per second (800 m/s) from a 16 inch (406 mm) barrel using a 115-grain Hornady OTM bullet.


Muzzle velocity from a 24-inch (610 mm) barrel
7.45 g (115 gr) Full Metal Jacket (FMJ): 2,625 ft/s (800.1 m/s)
7.45 g (115 gr) Boat Tail Hollow Point (BTHP): 2,624 ft/s (799.8 m/s)
7.45 g (115 gr) Sierra Match King (SMK): 2,625 ft/s (800.1 m/s)

Muzzle velocity from a 16" barrel in 2008
85gr Barnes TSX ; 3030 ft/s- "combat" factory load
110gr Sierra Pro hunter; 2680 ft/s- "combat" factory load

http://www.lwrifles.com/tech.php LW Technology Page
WRC promotional video
Definitive history of 6.8 SPC- The 6.8 SPC, Is it all that?
6.8 SPC FAQ
Remington Ammunition Information
M468 Rifle
Defense Review
Gunblast.com article
Sharper Shooting: Upgrading Ammunition Lethality

Video:

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