APS. ASR Receiver Set for No.2 Hybird Gearbox (APS Logo, DE) Advance Special Rifle - 3 M3 Countersunk Hex

- 3 M3 Countersunk Hex Socket Screws

which reveals the 'bolt'

CORE have released a CNC aluminium quad rail system of which you could add any accessory

Guarder CNC 6061 G19 Custom Slide & Barrel for KJ G23/G32 GBB (Black)

APS. ASR Receiver Set for No.2 Hybird Gearbox (APS Logo, DE) Advance Special Rifle - 3 M3 Countersunk HexA. P. S. ASR Receiver Set for No. 2 Hybird Gearbox (APS Logo, DE) Aluminum Die Castng Construction Suitable for M4 M16 Series Airsoft Electric Gun AEG Rifle Engraved "Special Purpose rifle A. P. S" Logo marking on body Package Include Steel Dust Cover, Charging Handle, Recever Pin Set, Forward Assist Knob, magazine catch, Bolt Catch