Geissele Automatics Super Duty Mod 1 Upper Receiver Group 16″ 5.56, Black
The Super Duty Mod 1 improves upon the renown Super Duty and has updated several key components to continue providing unmatched accuracy, comfort and performance.
Geissele provides the latest in weapon technology available. This 16” upper chambered in 5.56mm features a nanoweapon-coated HUXWRX Flash Hider-QD installed on our in-house 16” Manganese Phosphate coated, Cold Hammer Forged, Chrome Lined, 1-7 twist barrel. Geissele barrels are High-Pressure Tested (HPT) and Magnetic Particle Inspected (MPI). The Geissele length gas system and Geissele Super Compact Gas Block (with bomb-proof installation) ensure reliability and optimal performance in extreme conditions and heavy use.
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 15” 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: 25.375″
- 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: 15″ MK16 Super Modular Rail with Center Tab
- Barrel: 16″ Cold Hammer-Forged Barrel, 1:7 Twist, Geissele Profile
- Gas System: Geissele Length
- Gas Block: Super Compact Gas Block
- Gas Port Size: 0.075″
- Charging Handle: Airborne Charging Handle
- Muzzle Device: HUXWRX Flash Hider-QD 556
Donald Fleener (verified owner) –
Awesome place to do business. I’ve never had anything shipped so fast or been more happy with my purchase. I’m actually taking it out this weekend to zero it. Thank you so much. I will definitely be a repeat customer and I highly recommend this company. Also try out the badger ordnance condition one unimount 1.70. Second best purchase I made from rooftop defense.
Rusty Shackleford (verified owner) –
Excellent upper. Great fit and finish. The bolt looks to be a true rival to the lmt and kac for durability and longevity, and an accurate cold hammer forged barrel is always fun too.