GEISSELE RELIABILITY ENHNC BCG 5.56

The Geissele Reliability Enhanced Bolt Carrier Group comes with the Geissele Stressproof Bolt. The Forged Stressproof Bolt is made from Carpenter 158+, developed directly with Carpenter Steel metallurgists to produce a cleaner material with fewer impurities. This makes the Stressproof Bolt stronger and more fatigue-resistant, capable of 5 times the life of a mil-spec bolt. Each Forged bolt is rigorously inspected, high-pressure tested, mag particle inspected, and Nanoweapon coated.