Geissele Automatics Super Duty AR-15 Complete Upper Receiver 5.56 Mid-Length - ODG - 14.5"
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Overview
The Geissele Automatics Super Duty AR-15 Complete Upper Receiver is designed for builders looking for a reliable and high-performance upper in a striking OD Green finish. This complete assembly features a 14.5-inch barrel with a 1:7 twist rate, optimized for the 5.56 NATO caliber, ensuring excellent accuracy and stability for a range of ammunition. With its mid-length gas system, this upper receiver is well-suited for builds that prioritize a smoother shooting experience and reduced recoil, making it a popular choice among builders focusing on 5.56 NATO configurations.
Specifications
Geissele Automatics Super Duty AR-15 Complete Upper Receiver 5.56 Mid-Length - ODG - 14.5"
Build history on GunPartPicker
Builders have added the Geissele Automatics Super Duty AR-15 Complete Upper Receiver 5.56 Mid-Length - ODG - 14.5" to their builds on GunPartPicker. Since April 2026, it ranks #520 of the 2,005 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $1,350 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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