Geissele Automatics Super Duty MOD1 5.56 NATO Complete Upper Receiver - 11.5" - Black

The Geissele Automatics Super Duty MOD1 5.56 NATO Complete Upper Receiver represents the latest advancement in the Super Duty series, offering enhanced features while preserving the renowned performance and reliability. Built upon the foundation of the original Super Duty platform, the MOD1 incorporates refined ergonomics and modularity. At the core of this upper is a 11.5” cold hammer forged, chrome-lined barrel paired with a Nanoweapon-coated Reliability Enhanced Bolt Carrier Group, both rigorously tested for durability and accuracy. The Super Duty's balanced gas system, including the Super Gas Block and optimized gas port, minimizes recoil while ensuring consistent cycling. Rounding out this AR-15 upper is a center-tab mated MK16 rail with QD inserts, and an ambidextrous Airborne Charging Handle.

Features:

• 11.5” Cold hammer forged, chrome-lined barrel
• Nanoweapon-coated Reliability Enhanced Bolt Carrier Group
• High-Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) barrel and bolt
• Super Duty Gas Block with fine-tuned gas port sizing
• 10.5" free float M-LOK SMR MK16 rail
• Center-tab mated MK16 rail with stainless steel QD inserts
• Ambidextrous Airborne Charging Handle
• HUXWRX Flash Hider-QD muzzle device
• Black finish