Geissele Automatics Super Duty Mod 1 Upper Receiver Group 14.5″ HBAR 5.56, Black

Geissele Automatics Super Duty Mod 1 Upper Receiver Group 14.5″ HBAR 5.56, Black

The renown Super Duty now features a heavy profile barrel as an option, providing unmatched volumes of fire and accuracy.

At the heart of this rifle is the Geissele Reliability Enhanced Bolt Carrier Group. Our Nanoweapon-coated carrier features a properly torqued and staked, Chrome Lined, Nanocoated gas key. The Cam Pin is machined from advanced, tool steel known as H13 which is also coated with Nanoweapon for maximum corrosion and wear resistance. The Reliability Enhanced Bolt Carrier Group features extended upper rails, providing greater stability and dramatically increasing feeding reliability.

The Reliability Enhanced Bolt Carrier Group comes with the Geissele Stressproof Bolt. Each bolt is rigorously inspected, high-pressure tested, mag particle inspected and Nanoweapon coated.

Rounding up the package is a 13.5” MK16 Super Modular Rail, that mates to the Super Duty Upper Receiver via a center aligning tab that removes any chance of rail rotation. The MK16 family of rails is renowned by operators for their performance and comfort. An Airborne Charging Handle ensures smooth and reliable operation.

Specifications

• Overall Length: 24″
• Caliber: 5.56mm
• Color: Black
• Receiver: Super Duty w/ Cam Pin Cut-Out and Rail Notch
• Bolt Carrier Group: Reliability Enhanced Bolt Carrier Group
• Bolt: Geissele Stressproof Bolt
• Rail: 13.5″ MK16 Super Modular Rail with Center Tab
• Barrel: 14.5″ Cold Hammer-Forged Barrel, 1:7 Twist, Heavy Barrel Profile
• Gas System: Midength
• Gas Block: Super Compact Gas Block (.750 Gas Journal)
• Gas Port Size: 0.076″
• Charging Handle: Airborne Charging Handle
• Muzzle Device: HUXWRX Flash Hider-QD 556, Pinned and Welded
• Thread Pitch: 1/2×28