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This is a Core 15 MOE M4 16” 1:7 Barrel Piston Driven Complete AR-15 Upper Receiver. This upper receiver from Core Rifle Systems is a well designed piece that is intended to be a direct drop in replacement for your direct-inpingement upper. The piston system operates cleaner than the stock DI system, improving reliability. This upper has the following features:
CORE15 Mil-Spec Forged 7075-T6 M-4 Upper Receiver, Type III Class II hard-coat anodized finish, M4 Feed Ramps, (1913 Picatinny rail flat top) w/ dry lube internal finish and laser engraved T-markings
16” M4 Profile 1:7 twist 4150 Chromoly Vanadium Steel
Chambered in .223/5.56 x 45 mm NATO
CORE15 Gas Piston Assembly
Adjustable Gas Settings
Proprietary Monolithic, Melonite Coated Bolt Carrier
Magnetic Particle Inspected (MPI) Bolt Assembly
A-2 Flash Hider
Picatinny flat-top Gas Block (optics ready design)
Magpul MOE Handguard
Magpul MOE MBUS Front and Rear Sights
Manufacturers Lifetime Warranty
*Copy of Photo ID required for purchase of any uppers.
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