PRO2A 12.5" 308 Win 1/10 Carbine Length Melonite M-LOK AR-10 Upper Receiver Assembly

PRO2A 12.5" 308 Win 1/10 Carbine Length Melonite M-LOK AR-10 Upper

Product Description

Balance short-barrel maneuverability with hard-hitting big-bore velocity retention. The PRO2A 12.5" 308 Win Carbine Length Upper Assembly delivers impressive .308 Winchester rifle-caliber energy within an incredibly agile tactical footprint. Built on a heavy-duty forged 7075-T6 aluminum DPMS-pattern upper receiver block with standard right-side ejection mechanics, this system centers around a 12.5-inch medium profile barrel. The 1:10 twist rate guarantees robust rotational stabilization for standard 147gr to 175gr factory loads, optimizing terminal tracking downrange. Tuned with a carbine-length gas system and a low-profile gas block, it provides dependable dwell times and smooth cycling pressure curves. The rigid 12-inch free-float aluminum handguard extends flush with the muzzle threads, supplying zero barrel deflection and continuous modular M-LOK accessory placement space.

NOTE: MUST BE PAIRED with our Pro2A Tactical Stripped or Complete AR-10 Lower Receivers for seemless compatibility and trouble free fitment. As there is NO milspec standard for the AR-10 Platform, we do not guarantee fitment with other manufacturer's AR-10 Lower Receivers.

Key Features

Compact Big-Bore Ballistics: Pushes heavy .308 Winchester kinetic signatures from an agile 12.5-inch barrel configuration, offering the ultimate compromise between close-quarter deployment and medium-range knockdown capability.
Reliable Carbine-Length Gas Curve: Delivers a balanced dwell time cycle to reliably process standard to heavy-weight hunting and match ammunition profiles under short-barrel constraints.
Liquid Bath Nitride Hardening: The 4150 Chrome Moly Vanadium steel core features full interior and exterior QPQ Melonite coating to supply absolute weatherproofing and prolonged bore precision.
100% Sourced & Assembled in the USA: Built to tight manufacturing metrics in Georgia, backed completely by premium custom-shop engineering quality parameters.

Technical Specifications

Upper Receiver	AR-10 DPMS Pattern (DPMS High Profile), Billet 7075-T6 Aluminum, Forward Assist & Dust Cover, Type III Hardcoat Anodized Black
Barrel Length & Profile	12.5-Inch Medium Profile
Caliber	.308 Winchester (Safely accepts 7.62x51mm NATO factory ammunition)
Twist Rate	1:10 Twist Rate (Highly optimized for standard to heavy-weight .30 caliber projectiles)
Barrel Material	4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish
Gas System	Carbine Length Direct Impingement with Low-Profile Gas Block
Handguard	10-Inch Free Float Slim Profile M-LOK Handguard Rail System
Muzzle Device	Standard A2 Flash Hider, 5/8-24 TPI, Bored for 30 Caliber

Why Choose This Product?

Running a full-power .308 Winchester round out of a 12.5-inch short-barrel configuration requires strict gas pressure management on the large-frame AR-10 platform. Pro2A Tactical resolves this directly by pairing a precision-tuned carbine gas layout with matching high-pressure DPMS components.