*Estimated Shipping: Fourth Quarter 2020*
**PLEASE READ FOR PURCHASES: You will not be charged until this pre-order item ships. When placing your order for this pre-order item do not have anything else in your cart. If you wish to purchase in-stock items as well, please do separate transactions. Any orders received with pre-order items AND normal stocking items will be cancelled and refunded. We are sorry for the inconvenience.
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.
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
• Weight: (No BCG) 3 lbs 10 oz
• Barrel Length: 8.5”
• Calibers: 7.62×39 | 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