Description
Product
MCS AR-15 12.5″ 5.56 NATO BUILT UPPER 12″ RAIL – BLACK
12.5″ 5.56 NATO upper with 4150V CMV QPQ barrel and carbine-length gas system.
Assembled in Arlington, TX, with a forged receiver and 12″ handguard.
Type III Hard-Coat anodized finishes, optional Black Nitride BCG.
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.
The CU-125-12 Complete Upper features our ADZ Rail in classic black, with mil-spec Type III Hard-Coat Anodizing.
Specs:
- Caliber:5.56×45 NATO/.223 Remington
- Barrel Length:12.5“
- Barrel Material:4150V Chrome Moly Vanadium, QPQ finish
- Barrel Twist Rate:1:7
- Feed Ramps:M4, NiB finish
- Muzzle Thread Pitch:1/2×28
- Gas System:Carbine-length
- Journal Size:0.750″
- Muzzle Device:A2 Flash Hider
- Handguard Length:12″
- Charging handle:Mil-spec
