USED – Geissele Automatics 5.56 Reliability Enhanced Bolt Carrier Group

The Reliability Enhanced Bolt Carrier Group is a 5.56mm full-mass, full-auto rated M16/M4 bolt carrier group manufactured in Geissele’s state-of-the-art manufacturing facility in North Wales, PA.

• Features a forged bolt manipulates the grain structure of the metal and yields a bolt capable of 5 times the life of a mil-spec bolt.
• M16 cut carrier
• Carrier Material: 8620 Steel
• Bolt Material: Carpenter 158
• Finish: Nanoweapon (Chrome-Nitride)
• Caliber: 5.56mm
• Maximum corrosion and wear resistance.
• Each bolt is then rigorously inspected.
• The carrier features a properly torqued and staked, chrome-lined, gas key.