Maxim Defense Industries MDX 508 U.R.G. AR-15 .300 AAC Blackout 8.5 inch Upper Receiver Pistol Length 1-7 Twist 5/8×24 HATEBRAKE Black

Maxim Defense Industries MDX 508 U.R.G. AR-15 .300 AAC Blackout 8.5 inch Upper Receiver Pistol Length 1-7 Twist 5/8×24 HATEBRAKE Black. 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 Specifications for Maxim Defense Industries MDX 508 U.R.G. AR-15 8.5 inch Upper Receiver: Manufacturer: Maxim Defense Industries Overall Length: 17.5 in Barrel Length: 8.5 in Muzzle Device: Hatebrake Finish: Cerakote Handguard Style: M-LOK w/ Top Picatinny Rail System Gun Model: AR-15 Barrel Material: 4150 Chrome Moly Vanadium Features of Maxim Defense Industries MDX 508 U.R.G. AR-15 8.5 inch Upper Receiver 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 Package Contents: Maxim Defense Industries MDX 508 U.R.G. AR-15 8.5 inch Upper Receiver What firearm models does the manufacturer say Maxim Defense Industries MDX 508 U.R.G. AR-15 8.5 inch Upper Receiver is compatible with? The manufacturer suggests that Maxim Defense Industries MDX 508 U.R.G. AR-15 8.5 inch Upper Receiver is compatible with AR-15Maxim Defense Industries MXM-47929: MDX 508 U.R.G. AR-15 .300 AAC Blackout 8.5 inch Upper Receiver Pistol Length 1-7 Twist 5/8×24 HATEBRAKE Black