Ar-15 Reliability Enhancement Bolt Carrier Group Only - Reliability Enhanced Bolt Carrier Group 5.56mm

The carrier is machined from mil-spec 8620 steel, and features a properly torqued and staked, chrome lined, gas key. The cam pin is machined from an advanced medical steel typically used to produce medical instrumentation known as H13, it is then coated with Nanoweapon (Chrome-Nitride) for maximum corrosion and wear resistance. The extended upper rails on the carrier also provide much greater stability and dramatically increase feeding reliability. The Carrier is coated with Nanoweapon for maxium corrosion and wear resistance. The Geissele Stressproof Bolt is made from Carpenter 158, however this is not your typical material spec'd by the US Government. Since Geissele wanted to take Mfg: Geissele Automatics