Geissele Automatics Super Duty MOD1 5.56 NATO Complete Upper Receiver - 11.5" - Black
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Geissele
Overview
The Geissele Automatics Super Duty MOD1 Complete Upper Receiver is a fully assembled unit designed for the AR-15 platform, featuring an 11.5-inch barrel chambered in 5.56 NATO. This upper receiver offers a reliable and efficient solution for builders looking to create a compact yet powerful firearm. It is commonly found in builds that prioritize maneuverability and versatility, making it a popular choice for both tactical applications and personal defense.
Specifications
Geissele Automatics Super Duty MOD1 5.56 NATO Complete Upper Receiver - 11.5" - Black
Available Merchants(5)
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August 2026 on GunPartPicker
Geissele Automatics Super Duty MOD1 5.56 NATO Complete Upper Receiver - 11.5" - Black ranked #48 of the 690 upper receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #75 of the 1,596 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 5.56 NATO and nearly all AR-15.
It was hard to find in August 2026, in stock on only 1 of the 24 days we checked, and today none of the 5 retailers we track has it in stock right now. It dipped to $1,047.56 at Brownells for a stretch in August 2026, well under its usual $1,325, so sales do come around. Listed prices start at $1,201.99 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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Frequently Built With
The part most often added in each category by the 29 builds that include this one
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Geissele Automatics AR-15/M16 Super Charging Handle, Black
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B5 Systems Type 22 P-Grip - Black
HUXWRX FLOW 556 Ti 5.56 NATO Flow-Through Suppressor (Black) - 3059
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