The Colt AR-15 Upper Receiver Assembly with Monolithic Rail comes complete with charging handle, bolt and bolt carrier assembly. Featuring a flat-top upper receiver with picatinny rail, this assembly is more than ready to offer the shooter maximum versatility when it comes to mounting accessory devices. Unique to this upper receiver, is the free float monolithic rail which is machined together in conjunction with the upper receiver portion of the upper assembly. The monolithic rail presents the user with an extremely versatile single plane rail which eliminates the chance of front mounted accessories being canted or unlevel. The Colt Upper Receiver also feature a free-floating barrel which is designed to enhance accuracy and target acquisition.
Features
Monolithic Rail
Free-Floating Barrel
Flat Top Upper
A2 Flash Hider
Black Parkerized Finish
Flip-Up Rear Sight

AR-STONER LR-308 A3 Billet Upper Receiver Assembly 308 Winchester 18" Barrel 15" Ultralight M-LOK Handguard 


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