JinMing JM Gen9 M4A1 Receiver Shell Kit Key Specifications:

Key Specifications:

spring and autumn can be worn alone

hk416 gel ball blasters

Anti-rotation limit of air cylinder added

the gel balls will burst on impact and evaporate competely without stain or residue

JinMing JM Gen9 M4A1 Receiver Shell Kit Key Specifications:The new version of JM M4A1 Gen9 v2 receiver is one of the base parts of any blaster. If you are looking to replace or do a custom build, then this is a good, strong receiver. Comes with all the parts necessary. Add your own AR stock and handguard and create your own blaster. The quality of this receiver can not be denied with a strong nylon body, and full black bits your set to go.. Cannot use the old version of gen9 gearbox. Specifications: Brand: