The hellfighter mod kit it the perfect, ultra-fast california compliant magazine lock solution for your ar-15.Juggernaut's modified quick-release take down pin, acts as a button to separate the upper from the lower just enough to disengage semi-automatic operation and automatically disable the magazine lock.It allows you to keep all of your current features, including a pistol grip, a forward grip and adjustable butt stock.

Finish: Black
Type: Pin Kit w/Mag Lock
Model: Hellfighter
Size: 5.56 NATO
Material: Steel