Geissele Automatics Super Duty MOD1 5.56 NATO Complete Upper Receiver - 10.3" - DDC

Start your next AR-15 build with the Geissele Super Duty MOD1 Upper Receiver. This complete upper receiver features a 10.3" CHF chrome-lined barrel with a 1:7 twist for accuracy and reliability. The Manganese Phosphate finish provides superior durability, while the carbine-length gas system ensures smooth operation.

Features:

• Chambered in 5.56 NATO
• 10.3” Geissele barrel, CHF, Chrome lined, 1:7 twist
• Manganese Phosphate finish
• Carbine Length gas systen
• Geissele Super Compact Gas Block
• 9.3" 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
• Airborne Charging Handle
• Mil-Spec Construction
• Desert Dirt Color (DDC) finish

A lightweight, free-floating 9.3" SMR MK16 rail, favored by USASOC operators, offers superior ergonomics and modularity. The upper also includes Geissele's advanced Reliability Enhanced Bolt Carrier Group with a Nanoweapon-coated Stressproof bolt, for long-lasting use and exceptional corrosion resistance.