E&C M4 STITCH SET (MP062)

The term M4 pin refers to the bolt used to secure the body or frame of M4 airsoft guns. M4 airsoft guns are modular and can be disassembled, and body mounting is key to secure and stable fit of parts.

The body consists of two halves and these screws allow the lower and upper parts of the gun to fit tightly and securely.