Geissele AR-15 Super Duty Upper Receiver Assembly 5.56x45mm 16″ Cold Hammer Forged Barrel M-LOK

Geissele AR-15 Super Duty Upper Receiver Assembly 5.56x45mm 16″ Cold Hammer Forged Barrel M-LOK

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The Geissele Super Duty AR-15 Upper Receiver Assembly features the latest in weapon technology available exclusively from Geissele Automatics. This 16” complete upper chambered in 5.56mm features a Nanoweapon coated Surefire Closed-Tine Flash Hider mounted to a 16” durable black oxide coated, CHF, Chrome Lined 1-7 twist barrel.

Included is a brand new, 15” Super Modular Rail MK16 that mates to the upper via a center aligning tab removing any chance of rail rotation. Also included is the Geissele Reliability Enhanced Bolt Carrier Group. This Nanoweapon coated BCG features a properly torqued and staked, chrome lined gas key. The get more info Geissele Reliability Enhanced Bolt Carrier Group also features extended upper rails, providing greater stability and dramatically increasing feeding reliability.

The Geissele Reliability get more info Enhanced Bolt Carrier Group comes with the Geissele Stressproof Bolt. Made from Carpenter 158+, directly developed with Carpenter Steel metallurgists to website create a material that is cleaner and has less impurities. This makes Geissele’s Stress read more proof bolt stronger and more fatigue resistant. This allows us to optimize the grain get more info structure of the steel to yield a bolt capable of 5 times the life of a mil-spec bolt.