Geissele Automatics Super Duty MOD1 5.56 NATO Complete Upper Receiver - 14.5" Pinned - Black

The Geissele Super Duty MOD1 Upper Receiver is a complete upper for the AR-15 platform, chambered in 5.56 NATO. This high-quality upper receiver features a Geissele 14.5" chrome-lined barrel with a 1:7 twist rate and suppressor-ready HUXWRX Flash Hider that’s pinned and welded. The mid-length gas system paired with the Super Compact Gas Block ensures smooth operation. Included is a 13.5" Super Modular Rail MK16, a variant of the rail used by USASOC, for superior ergonomics and customization options. The upper is completed by Geissele's battle-proven Reliability Enhanced Bolt Carrier Group and Stressproof bolt, engineered for maximum durability and performance.

Features:

• Chambered in 5.56 NATO
• 14.5” Geissele barrel, CHF, Chrome lined, 1:7 twist,
• Manganese Phosphate finish
• Mid-length gas system
• Geissele Super Compact Gas Block
• 13.5" SMR MK16 Rail
• Super Duty Upper with Cam Pin Cut-Out
• Geissele Reliability Enhanced BCG, Nanoweapon Coated
• Geissele Stressproof Bolt, Carpenter 158+
• HUXWRX Flash Hider-QD, suppressor-ready, pinned & welded
• Airborne Charging Handle
• Mil-Spec Construction
• Black finish