Geissele Automatics AR-15 10.3 Super Duty Nano Complete Upper Receiver Black
2 options
- Black, this page
- OD Greenout of stock
Geissele
Overview
The Geissele Automatics AR-15 10.3 Super Duty Nano Complete Upper Receiver is a fully assembled upper designed for the AR-15 platform, featuring a 10.3-inch barrel specifically chambered in 5.56 NATO. With a twist rate of 1:7, this upper is optimized for stabilizing a wide range of bullet weights, making it versatile for various ammunition choices. This upper is commonly found in builds that utilize a carbine gas system, providing reliable cycling and performance in compact configurations.
Specifications
Geissele Automatics AR-15 10.3 Super Duty Nano Complete Upper Receiver Black
2 options
- Black, this page
- OD Greenout of stock
August 2026 on GunPartPicker
Geissele Automatics AR-15 10.3 Super Duty Nano Complete Upper Receiver Black ranked #291 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 #905 of the 1,636 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
Today the one retailer we track is out of stock. Listed prices start at $1,132.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 12 builds that include this one
Aero Precision M4E1 Complete Lower Receiver W/MOE SL Grip & SL-S Carbine Stock
Magpul AFG-2 Angled Fore Grip - Black
Geissele Automatics AR-15/M16 Super Charging Handle, Black
Triggertech AR Diamond Trigger PRO Black
Geissele Automatics AR-15 Maritime Bolt Catch Steel Black
Daniel Defense Complete Bolt/carrier Group, M16
Builds Featuring This Part
See all 1 →Builds in the community that include the Geissele Automatics Llc Ar-15 10.3 Super Duty Nano Complete Upper Receiver Black
| Build | Parts | Total |
|---|---|---|
 | 7 | $3181.26 |
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