MDX:508 U.R.G.

The MDX508 upper receiver is now available as a direct upgrade to your existing Mil-Spec lower receiver. It features an 8.5” barrel making it ideal for close-quarters situations. The included HATEBRAKE™ increases reliability and is tucked under the 9.5” handguard. These upper receiver groups ship complete, including a Maxim Defense Mil-Spec or SCW bolt carrier group, Radian Raptor charging handle, and Maxim Defense hand stop, ready to shoot right out of the box.

FEATURES
1. Increased reliability due to included HATEBRAKE™
2. Armorer level adjustable gas block
3. M-slot compatible handguard
4. Military-grade materials [17-4 Stainless Steel, 7075 and 6061 Aluminum]
5. HK height rail for a more rigid upper receiver
6. Installs on any Mil-Spec lower receiver
7. Comes with Mil-Spec or PDX BCG

Technical Specification

Weight :

(No BCG) 3 lbs 10 oz

Barrel Length :

8.5”

Calibers :

7.62x39 | 5.56 NATO | 300 BLK

IMPORTANT INFORMATION REGARDING SILENCERS (cans, suppressors, etc.) on any Maxim Defense firearm: CLICK HERE

Puerto Rico Customers: Consumers must go through your local PR dealer. Dealers must buy through Distribution. effective 10/03/2019