AngryGun Complete MWS High Speed Bolt Carrier With Nozzle (BC* Style) for Marui M4 MWS GBB (Dark Earth) Part-Type_Piston Head Package comes with 10pcs burst

Package comes with 10pcs burst discs and 1pcs Replacement o-ring

TMC Mesh Mask with Ear Cover

One-Piece Free Floating Rail

Design for Replace The Original Hammer

the system works with both the original and the modified AEG installation

AngryGun Complete MWS High Speed Bolt Carrier With Nozzle (BC* Style) for Marui M4 MWS GBB (Dark Earth) Part-Type_Piston Head Package comes with 10pcs burstAngryGun Complete MWS High Speed Bolt Carrier With Nozzle (BC* Style) for Marui M4 MWS GBB (Dark Earth) Metal Construction With Gen2 MPA Nozzle (BC* Style) Desing For Upgrade the Original Parts Designed to give you more control of your MWS build The BCG features an adjustable nozzle for fine FPS tuning, you simply use the provided allen key to adjust for more or less FPS from the front of the nozzle. Suitable For Tokyo Marui M4 MWS M4 MWS SPEC Series