The MDX510 upper receiver is compatible with your existing Mil-Spec lower and is packed with Maxim Defense quality. It comes with either our Mil-Spec bolt carrier group or SCW bolt carrier group for those using our SCW system. For those wanting a standard length short barrel, the 10.3” barrel of the MDX510 is your best choice. Like our other uppers, the MDX510 includes our HATEBRAKE for increased reliability, Radian Raptor charging handle, and Maxim Defense hand stop.
- 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 or PDX BCG
4 lbs 2 oz
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
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