The M4 stock lock pin is designed for featureless conversions of M4 and similar AR-15-style buttstocks into the locked position without modification or marring of the existing components. This M4 stock lock pin kit is compatible with USGI M4, B5, LMT SOPMOD, VLTOR, BCM, Blackhawk, and LWRC stocks. The stock lock pin features all-steel construction.
Note: This product has NOT been approved for legal compliant by ANY state or local firearms regulatory authority.
