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