CGS MK16 13.5"，high speed bolt

QUICK RELEASE HOP UP CHAMBER DON＇T NEED REMOVE BARREL NUT

FULL STEEL PARTS TRIGGER BOX

30 ROUNDS NATO STANAG MAG TYPE STANDARD MAGAZINE

STEEL BOLT CARRIER HIGH SPEED SPEC. *17RPS *THE RPS TEST 12KG GAS 25℃ TEMPERATURE

STEEL PARTS:
BOLT CARRIER
TRIGGER
HAMMER
SEAR
BOLT CATCH
FORWARD ASSIST
CASTEL NUT 
RECEIVER QD END PLATE
PIVOT/TAKE DOWN PIN
TRIGGER PIN
RUBBER COAT FRONT SLING SWIVEL
STEEL QD SLING PLATE

ALUMINIUM PARTS:
13.5"OUTER BARREL
4 POSOTION STOCK BUFFER TUBE
HARD KICK RECOIL PISTON
METAL UPPER/LOWER MAIN BODY