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Maxim Defense MDX 508 5.56 Mil-Spec Complete Upper - 8.5"

AR-15 Complete Upper Receiver

As low as: $1255.50
Out of stock


Maxim Defense MDX 508 5.56 Mil-Spec Complete Upper - 8.5"

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 bolt carrier group, Radian Raptor charging handle, and Maxim Defense hand stop, ready to shoot right out of the box.



Features:

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


Specifications:

  • Weight: 3 lbs 10 oz
  • Barrel Length: 8.5”
  • Calibers: 5.56 NATO
More Information
SKU MXM-4811X
Product Type AR-15 Complete Upper Receiver
Manufacturer Maxim Defense
Mount M-LOK
Barrel Length 8.5"
Caliber 5.56 NATO

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