Product Description
MCS AR-15 .300 BLACKOUT 10.5-INCH PISTOL UPPER 1:8 FREEFLOAT M-LOK HANDGUARD
The MCS .300 AAC Blackout AR-15 Upper Build Kit built around a compact 10.5-inch pistol-length gas platform. The kit centers on a 10.5-inch HBAR profile parkerized barrel with a 1:8 twist rate and 5/8x24 thread pitch, paired with a GI birdcage flash hider compatible with .308 Winchester, 7.62x39, and .300 Blackout, and a black 5/8-inch crush washer. A micro low-profile steel gas block at 0.750 diameter and a pistol-length gas tube are included on the front end. The 7075-T6 aluminum anodized upper receiver features M4 feed ramps, a forward assist, and an ejection port door assembly, paired with a 10-inch MCS MX freefloat M-LOK handguard.
Caliber: .300 AAC Blackout (.300 BLK)
Barrel Length: 10.5"
Barrel Profile: HBAR
Gas System: Pistol Length
Twist Rate: 1:8
Barrel Finish: Parkerized
Thread Pitch: 5/8x24 TPI
Upper Receiver: AR-15 Upper Receiver
Upper Receiver Features: 7075-T6 Aluminum, Anodized Finish, M4 Feed Ramps
Handguard: MCS MX 10" M-LOK Free Float Handguard
Gas Block: Micro Low-Profile Steel Gas Block, .750" Gas Journal
Gas Tube: Pistol Length Gas Tube
Muzzle Device: GI Birdcage Flash Hider
Muzzle Device Compatibility: .308 Win, 7.62x39, .300 Blackout
Crush Washer: Black 5/8" Crush Washer
Ejection Port Cover: AR-15 .223/5.56 Ejection Port Door Assembly
Forward Assist: Mil-Spec Forward Assist Assembly
Platform Compatibility: AR-15
