Cmc trigger anti-walk pin sets is an innovative, self-contained and easy-to-install your ar-15 trigger group.It incorporates the most advanced methods available, will not only yield the highest quality, but will also keep the supply lines full so every ar-15 shooter who places the highest demands on quality, function and reliability, will no longer have extensive lead times for obtaining these innovative trigger groups.Finish: BlackType: Pin SetModel: Anti-Walk Pin SetSize: SmallMaterial: Steel