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

Product Description

Balance short-barrel maneuverability with hard-hitting big-bore velocity retention and side-charging operation ergonomics. The PRO2A 12.5" 308 Win Carbine Length Non-Reciprocating (NR) Side Charging Upper Assembly redefines large-frame mechanics by shifting weapon staging to a smooth, left-side charging handle layout that remains completely stationary while live rounds cycle, preserving absolute shooting safety and protecting the operator's forward hand grip. Built on a premium billet aluminum DPMS-pattern upper receiver block with a standard right-side ejection port setup, this configuration features a 12.5-inch 4150 CMV medium profile barrel. The 1:10 twist rate guarantees robust rotational stabilization for standard 147gr to 175gr factory loads, optimizing downrange tracking. Tuned with a carbine-length gas system and a low-profile gas block, it provides dependable dwell times and smooth cycling pressure curves under short-barrel constraints. 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.

**Designed to go on our Gibbz G10 Lower Receiver for seemless fit and compatibility. May fit other brands DPMS Gen 1 Spec Lowers but may require minor fitting (minor filing especially at the lug area of the upper or lower) to get upper to fit on other AR-10 Lowers**

Key Features

• Non-Reciprocating Side Charging Handle: Left-side charging mechanism permits fast bolt operation while keeping your hand secure on the main pistol grip, remaining entirely static when live cycling to prevent handguard interference.
• 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 Protection: Full interior and exterior QPQ Melonite barrel coating provides maximum resistance to heat friction, extreme weather elements, and throat erosion.

Why Choose This Product?

Shifting your big-bore rifle platform to a non-reciprocating side charger completely modernizes your manual of arms, granting bolt manipulation access without breaking your cheek weld or target focus. 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 side-charging DPMS components. This layout creates a highly agile, dependable weapon package that drops seamlessly onto your existing standard LR-308 lower receiver.