Product Description
MCS AR-15 5″ .300 BLACKOUT PISTOL UPPER WITH BCG & SUPPRESSOR FIT HANDGUARD
Our MCS Barreled Uppers are fully assembled in-house and ready to pin to your lower receiver. We use forged American-made receivers and US-made barrels—carefully selected for quality, reliability, and consistency.
Specs
- Caliber: 300 BO
- Barrel Length: 5“
- Barrel Material: 4150V Chrome Moly Vanadium, QPQ finish
- Barrel Twist Rate: 1:7
- Feed Ramps: M4, NiB finish
- Muzzle Thread Pitch: 5/8×24
- Gas System: Micro-length
- Journal Size: 0.750″
- Muzzle Device: Long Cone
- Handguard Length: 7” Suppressor Fit
- Charging handle: Mil-spec
- USA MADE BCG
