In Stock SKU: 08-547S

MODEL/DESC: Super Duty MOD1 5.56 Complete Upper Receiver 14.

Engineered for peak performance, the Geissele Super Duty MOD1 Complete Upper Receiver in Desert Dirt Color (DDC) seamlessly integrates with your AR-15 platform. This premium upper features a Geissele 14.5" chrome-lined barrel, boasting a 1:7 twist rate for exceptional accuracy. The HUXWRX Flash Hider is pinned and welded for legal compliance and suppressor compatibility.  The mid-length gas system paired with the Super Compact Gas Block guarantees smooth operation, while the 13.5" SMR MK16 rail is ergonomic and has M-LOK slots for easy customization. Geissele's combat-proven Reliability Enhanced Bolt Carrier Group and Stressproof bolt offer improved durability and feeding reliability.


  • 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
  • Desert Dirt Color (DDC) finish

MFG Geissele
MODEL Super Duty MOD1 5.56 Complete Upper Receiver 14.
TITLE Geissele Super Duty MOD1 5.56 NATO Complete Upper Receiver - 14.5" Pinned - DDC

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