Geissele Super Duty Mod 1 Complete Upper Receiver 5.56 NATO 14.5" – AR-15 Platform DDC Finish

The Geissele Super Duty Mod 1 complete upper receiver assembly delivers a match-grade 5.56 NATO configuration in a 14.5" barrel profile. Built on the AR-15 platform, this upper features Geissele's Desert Dirt Color (DDC) finish and is designed for serious shooters who demand precision and reliability. The 14.5" barrel length with pinned and welded muzzle device brings the overall length to the legal 16" requirement, making it a non-NFA configuration.

Constructed from 7075-T6 aluminum with a mil-spec Type III hard-coat anodized upper receiver and DDC Cerakote finish on compatible components, this assembly includes a Geissele barrel, bolt carrier group, Airborne Charging Handle, and Super Modular Rail MK16 handguard. The upper is fully assembled and headspaced, ready to mate with any mil-spec AR-15 lower receiver. No gunsmithing required for installation—simply attach to your lower and verify function.

• Caliber: 5.56 NATO
• Type: Complete upper receiver assembly
• Compatible Lower: Mil-spec AR-15 lower receiver
• Barrel Length: 14.5" (pinned and welded to 16" OAL)
• Material: 7075-T6 aluminum upper receiver
• Finish: Desert Dirt Color (DDC)
• Includes: Barrel, bolt carrier group, Airborne Charging Handle, Super Modular Rail MK16 handguard
• Installation: Drop-in compatibility with mil-spec AR-15 lowers