FightLight Industries, formerly known as Ares Defense Systems, produces the ground breaking Mission Configurable Rifle (MCR) and this AR-15 is in a class by its self! The MCR-037 complete upper receiver assembly features exceptional flexibility. This is a unique upper receiver that can be instantly changed, adapted and reconfigured to virtually any mission profile without any additional tools. It offers a quick change barrel system with additional barrels in 12", 16" and 20" lengths, sold separately, all NFA rules apply. Powered by a short stroke gas piston system, the MCR-037 will drop on to any standard AR15/M4/M16 lower receiver without any permanent modification to the host lower. An Ares side charging system with installed belt-feed module allows you to use M249 SAW disintegrating M27 linked ammo or traditional AR-15 magazines. With a co-planar handguard and rail interface system the MCR-037 upper receiver is ready to accept your favorite optics. The receiver is precision machined 7075-T6 billet aluminum with a hardcoat anodized finish for a lifetime of hard use. It includes a semi-auto BCG, main action spring, bolt catch, carbine stock spacer and 100 empty M27 ammunition links to get you shooting right away. Get a FightLight/Ares Defense Systems MCR-037 upper receiver assembly and experience the ultimate AR-15 platform rifle for yourself!

Specifications and Features:
FightLight Industries MCR-037
AR-15 Complete Belt-Fed Upper Receiver Assembly
5.56mm NATO (accepts .223 Remington)
Short Stroke Gas Piston Operated
16.25" Quick Change Chrome Lined Barrel with A2 Flash Hider
Threaded 1/2x28 TPI with a 1:7" Twist rate
Dual Feed System Accepts Standard AR15/M4 Mags and M27 Linked Belts
7075-T6 Aluminum Billet Upper Receiver
Precision Machined Aluminum Feed Cover and Charging Handle
Precision Machined Billet Steel Feed Tray
Carbine Length Co-Planar Hand Guard
Upper Receiver Rail Interface System
MIL-STD 1913 Picatinny Rails
Semi-Auto Bolt Carrier Group
Overall length 32.25"
Overall weight 7.45 lbs
Manganese Phosphate, Nitride Coated
Type III Class 2 Hardcoat Anodized
Black Finish
Made in the USA

Includes:
Main Action Spring, Bolt Catch, Carbine Stock Spacer and 100 M27 Links