SRS Bolt Head (Monolithic/Right Handed) ghillie The adjustable air brake is

The adjustable air brake is there to adjust the piston's speed at the very end of its movement to reduce the time of air escaping the cylinder and to reduces piston impact noise when it hits the cylinder head

Superior Material

QD sockets on both the handguard and stock allows for the easy installation of a sling

the FLCN 5

this charging handle is a must-have upgrade for your airsoft arsenal

SRS Bolt Head (Monolithic/Right Handed) ghillie The adjustable air brake isSRS monolithic steel bolt head assembly Monolithic steel bolt head for SRS A1 with Bakelite bolt knob (SRS322). Lost wax molding, CNC machining and black oxide finish. 231 O ring is included. For right handed SRS replica. Ref: SBA BTH 02