Description
The URG-I is a near-clone of the upper receiver group in service with USASOC. It is a complete upper: fitting it to an existing lower is effectively a new rifle from the magazine well up.
The Geissele Super Modular Rail MK16 handguard, hammer-forged barrel and matched gas system are the substance of it. Geissele built the barrel to take the pressures of M855A1 (AB57) ammunition.
Specification
| Caliber | 5.56mm |
|---|---|
| Receiver | Mil-spec M4 upper receiver assembly |
| Bolt carrier group | Geissele Reliability Enhanced |
| Gas block | Super Compact |
| Charging handle | Airborne Charging Handle (ACH), DDC |
| Barrel | Geissele 11.5″ GOV profile, cold hammer forged, chrome lined, mag phos, ChromolyV, 1:7 twist |
| Gas length | Carbine length, .067″ port |
| Rail | Geissele 10.5″ MK16, DDC |
| Buffer | Super 42 braided wire spring with H3 buffer |
| Muzzle device | SureFire SF4P four-prong flash hider |
| Overall length | 21.25″ |
| Weight | 3 lbs 8 oz |
Before you buy
- This barrel does not meet the 16″ minimum length. Assembled into a complete rifle it is a short-barreled rifle, which requires registration and a tax stamp with the ATF. State and local restrictions may also apply, and compliance is the buyer’s responsibility.
Geissele builds to order rather than holding reseller stock. Firearms, uppers, barrels and bolts carry a factory lead time of roughly 15 to 25 weeks depending on the product — please order with that timeline in mind. Some orders ship sooner. We confirm timing when your order is placed — see our backorder policy.
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