Description
The CMMG Mk57 GUARD is a new AR15 chambered in 5.7X28mm. The Mk57 is fed from FN FiveSeven style magazines and uses CMMG’s patent pending Radial Delayed Blowback operating system that easily handles the 5.7X28mm cartridge while simultaneously keeping weight and felt recoil to a minimum. It also features a new patented dual-pinned fully machined bolt catch linkage making operation both easy and intuitive. The Mk57 is threaded 1/2-28 to accept the most common 5.7 rated suppressors and is the perfect carbine for defending your home or enjoying a day at the range. Action: Semi-Auto
Caliber: 5.7x28mm
B”
Capacity: 20+1
Weight: 80 oz
Frame Finish: Black
Arsenal SLR-106UR AK Pistol, 556/223, Rail, 5 Rnd Mag 
WGUN 534200140 M1873 SHORT 44-40 
Robinson Arms XCR-L Pistol 5.56/223 7" Barrel Keymod Rail, Black Finish Tailhook Brace 
ARML M15LTC16 M15 LT CAR 223 16 
SAV 19481 110FCP 338LAP HSP STOCK 
HENRY H004SAT GOLDEN BOY 2ND AMENDMENT TRIB 22LR 
Knights Armament SR-15 Lower Receiver Complete Assembly 223/5.56, Black, Magpul SL-S Stock 
CVA CR5430 HUNTER 44MAG BL/SYN 
Kriss Vector CRB Gen II 9mm 16" *CA* KV90CFD22 
WTHBY VWR65CMR0O VGD CAMILLA 6.5CRD 
CZ 527 Lux 223Rem 23.6" BarrelFixed Sights 5+1 03004 
WTHBY VGT306SR4O VGD 30-06 
HENRY H001TLB LEVER FRONTIER OCT 24IN 22LR 
Glock G19 Gen4 9mm, 4" Barrel, Midnight Bronze Finish 15rd Mag 
Rock River Arms BT9G 9mm 10.5" AR-15 Pistol W/SBA3 Brace AR-15, 2 Stage Trigger 
TCA 08156297 P/H RFL FRAME W/S 
Robinson Arms XCR-L Pistol 5.56/223 7" Barrel M-Lok Rail, Flat Dark Earth No Brace