Geissele Super Duty MOD1 5.56 NATO 10.3" 1:7" CHF Chrome Lined Bbl Black Complete Upper Receiver Group 08-543B

Geissele Super Duty MOD1 5.56 NATO 10.3" 1:7" CHF Chrome Lined Barrel Black Complete Upper Receiver Group 08-543B is built for serious shooters who demand maximum reliability and performance in a compact footprint. This upper includes a 10.3-inch cold hammer-forged barrel made from mil-spec steel with a chrome-lined bore and chamber for extended service life and corrosion resistance. The 1:7 twist rate is ideal for stabilizing a wide range of 5.56 NATO projectiles, and the barrel is topped with a SureFire Closed-Tine Flash Hider that's ready for suppressor attachment.

This upper comes equipped with the Geissele Reliability Enhanced Bolt Carrier Group featuring a Nanoweapon coating for superior wear and corrosion resistance. The Airborne Charging Handle provides enhanced grip and ambidextrous functionality, even in adverse conditions. The MK16 Super Modular Rail offers a slim, rigid handguard with M-LOK slots for full accessory compatibility, while the black Type III hardcoat anodized finish ensures durability and a clean aesthetic. Compact and ready for duty or defense, this upper is engineered for peak performance.

• Caliber: 5.56 NATO
• Barrel Length: 10.3"
• Barrel Profile: Geissele Profile
• Barrel Construction: Cold Hammer Forged (CHF)
• Barrel Finish: Chrome Lined
• Barrel Twist Rate: 1:7
• Muzzle Device: SureFire Closed-Tine Flash Hider
• Bolt Carrier Group: Geissele Reliability Enhanced BCG (Nanoweapon-coated)
• Charging Handle: Airborne Charging Handle
• Handguard: MK16 Super Modular Rail
• Receiver Finish: Type III Hardcoat Anodized, Black
• Part Number: 08-543B