Geissele Super Duty MOD1 5.56 NATO 11.5" 1:7" CHF Chrome Lined Bbl Black Complete Upper Receiver Group 08-544B

Geissele Super Duty MOD1 5.56 NATO 11.5" 1:7" CHF Chrome Lined Bbl Black Complete Upper Receiver Group 08-544B is built to deliver dependable performance in a compact, duty-ready package. Featuring an 11.5-inch cold hammer forged barrel with a chrome-lined bore and chamber, this upper is designed for longevity, accuracy, and resistance to heat and fouling under sustained fire. The 1:7 twist rate optimizes stability for a wide range of bullet weights, making it a versatile option for both training and real-world scenarios.

This upper includes a 10.5" MK16 Super Modular Rail that offers rock-solid accessory mounting via M-LOK, while keeping the overall weight down. Additional features include a Geissele Airborne Charging Handle, low-profile pinned gas block, and a SureFire 3-Prong Flash Hider for suppressor compatibility. Ideal for law enforcement, tactical shooters, or home defense setups, this upper group embodies Geissele's reputation for durability, precision, and premium components.

• Caliber: 5.56 NATO
• Barrel Length: 11.5"
• Barrel Twist Rate: 1:7
• Barrel Construction: Cold Hammer Forged, Chrome Lined
• Handguard: 10.5" MK16 Super Modular Rail, M-LOK
• Gas Block: Geissele Pinned Low-Profile
• Muzzle Device: SureFire 3-Prong Flash Hider
• Charging Handle: Geissele Airborne Charging Handle
• Finish: Black
• Part Number: 08-544B