SRC Alum. Cylinder Head (AK)

AK Cylinder Head Short - BlueFor v.3 series gearbox Reinforced cylinder head CNC machined 7075 aluminum Double O-Ring with rear pad When the gearbox cycles, the piston assembly is repeatedly slammed...

AK Cylinder Head w/Oring Short typeFor v.3 series gearbox Reinforced cylinder head CNC machined 7075 aluminum Double O-Ring with O-ring on back Compatible with ARES, King Arms, Tokyo Marui, and...