Product Description
MCS AR-15 7.5" INCH 300 BLACKOUT PISTOL UPPER
The MCS 300 BO upper build kit gathers the upper side parts for a .300 Blackout AR-15 pistol built around a 7.5 inch MCS .300 Blackout HBAR barrel. It pairs a forged upper receiver with a 7 inch MCS MLOK handguard, an adjustable clamp on gas block and a pistol length gas tube. A MCS PB radial hole brake is threaded onto the muzzle.
Brand: MCS
Product Type: Upper Build Kit
Platform: AR-15
Caliber: .300 Blackout
Barrel: MCS 7.5 in .300 Blackout HBAR Barrel
Barrel Length: 7.5 Inches
Barrel Material: 4150 CrMoV Steel
Barrel Finish: Phosphate, Nitride Extension
Barrel Profile: HBAR
Barrel Twist Rate: 1:8
Gas System: Pistol Length
Gas Journal: .750 Inch
Muzzle Thread Pitch: 5/8x24
Gas Block: Adjustable Skeletonized Clamp On, .750 Inch, Black
Gas Tube: Pistol Length, Stainless Steel
Muzzle Device: MCS PB Radial Hole Brake, 5/8x24
Muzzle Device Material: 17-4 H1150 Stainless Steel
Muzzle Device Finish: Black Nitride
Upper Receiver: Forged AR-15 Upper Receiver, M4 Feed Ramps
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Forward Assist: Yes, Assembly Included
Ejection Port Door: Yes, Included
Handguard: MCS 7 in Ultra Lightweight Minimalist MLOK Handguard
Handguard Length: 7 Inches
Handguard Style: Free Float
Attachment System: MLOK
Handguard Material: Aircraft Grade Aluminum
Handguard Finish: Anodized, Black
