Geissele Automatics Super Duty Mod 1 .300 Blackout AR-15 Complete Upper Receiver - 8" - DDC
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Geissele
Overview
The Geissele Automatics Super Duty Mod 1 .300 Blackout AR-15 Complete Upper Receiver features an 8-inch barrel specifically designed for the .300 Blackout caliber, making it ideal for both suppressed and unsuppressed shooting. This complete upper receiver comes in a Flat Dark Earth (FDE) color and is built on the AR-15 platform, ensuring compatibility with a wide array of lower receivers. Commonly found in pistol builds, this upper is perfect for compact configurations that benefit from the versatility of the .300 Blackout cartridge.
Specifications
Geissele Automatics Super Duty Mod 1 .300 Blackout AR-15 Complete Upper Receiver - 8" - DDC
Available Merchants(3)
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September 2026 on GunPartPicker
Geissele Automatics Super Duty Mod 1 .300 Blackout AR-15 Complete Upper Receiver - 8" - DDC ranked #267 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #162 of the 1,654 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 300 Blackout and nearly all AR-15.
It was out of stock everywhere we track for all of September 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $1,410 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Builds Featuring This Part
See all 1 →Builds in the community that include the Geissele Automatics Super Duty Mod 1 .300 Blackout AR-15 Complete Upper Receiver - 8" - DDC
| Build | Parts | Total |
|---|---|---|
 | 9 | $3973.31 |
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