AR-15 10.3" URG-I Stripped Upper Receiver 5.56mm

Geissele Automatics · Upper Receiver

Best price

$899.99at Brownells

checked Sep 30, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$899.99checked Sep 30, 2026	Check store	Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

About this part

The AR-15 10.3" URG-I Stripped Upper Receiver 5.56mm is an AR-15 stripped upper receiver from Geissele Automatics. One store lists it, Brownells at $899.99.

Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Barrel length: 10.3" · Handguards

Specifications

Manufacturer: Geissele Automatics
Type: Stripped
Platform: AR-15
Caliber: 5.56 mm NATO
Barrel length: 10.3"
Length: 3

From the manufacturer

Use your M855A1 Ammo With More Accuracy Than Ever Before

You've heard of Geissele's top-notch AR-15 trigger assemblies, and now the company's come out with a purpose-built upper receiver that's fine-tuned for use with mil-spec M855A1 ammo! The Geissele URG-I M-LOK AR-15 Upper Receiver is outfitted with the latest and greatest, so you have the best range experience possible.

Each Geissele URG-I M-LOK AR-15 Upper Receiver is equipped with a cold hammer-forged Daniel Defense barrel and features a mid-length gas system that offers reduced recoil and less wear on internal components. This receiver group is based on the same USASOC upper currently being sent into military use right now.

Chambered for 5.56 NATO
Available as either a stripped or complete upper
Barrel length: 10.3 inches
Requires NFA registration and tax stamp when assembled into a rifle

Other components of the Geissele URG-I M-LOK AR-15 Upper Receiver include a Geissele SMR MK 16 handguard, as well as the company's Airborne Charging Handle and Super Gas Block. SureFire also contributed its SF4P 4-Pront Flash Hider.