Great value on a Mil Spec complete upper receiver with bolt carrier group and a lifetime warranty!
This CORE15™ complete upper includes an accurate 16" 4150 chrome lined barrel, a chromed bolt carrier group, and a standard M4 handguard with heat shields.
- 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” 4150 CMV Chrome Moly M4 Profile Chrome Lined Barrel 1:7 Twist
- Chambered in .223/5.56 x 45 mm NATO
- Direct Gas Impingement Gas System
- Gas tube made of 304 grade Stainless Steel
- Chrome lined Steel Bolt Carrier and Bolt Carrier Key
- Magnetic Particle Inspected (MPI) Bolt Assembly
- A-2 Flash Hider
- M-4 Style Thermoset molded Polymer Hand Guards with Dual Heat Shields
- A Frame Front Sight Base (Forged)
- CORE15® NO BS Lifetime Warranty