Geissele Super Duty MOD1 5.56 NATO 13.9" 1:7" CHF Chrome Lined Pinned & Welded Bbl Black Complete Upper Receiver Group 08-546B

The Geissele Super Duty MOD1 5.56 NATO 13.9" 1:7" CHF Chrome Lined Pinned & Welded Bbl Black Complete Upper Receiver Group 08-546B is a high-performance upper receiver designed for the AR-15 platform. Featuring a 13.9-inch chrome-lined barrel with a 1:7 twist rate, this upper receiver offers superior accuracy and durability. The included Super Modular Rail MK16 provides ample space for mounting accessories, while the Reliability Enhanced Bolt Carrier Group ensures smooth operation and reliability. Ideal for upgrading or customizing your AR-15.