Pro2A 5.5" 10mm NR Side Charging Melonite M-LOK Upper Kit

PRO2A 5.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper Kit

Description

The Pro2A Tactical 5.5-inch 10mm Auto Non-Reciprocating (NR) Side Charging Complete Upper Kit delivers maximum weapon manipulation, control, and heavy-hitting stopping power to the AR-10mm platform. Hand-assembled and quality verified in Georgia, this premium conversion package replaces the traditional rear charging architecture with an advanced, static side-charger mechanism. Arriving fully populated with a matching side-charging blowback bolt group, full lower parts kit, and an optimized heavy buffer stock assembly, it provides a comprehensive drop-in solution built to tame hard-hitting cartridges seamlessly.

Key Features

Non-Reciprocating Control: Features an advanced side-charging upper receiver with a handle that remains fully static while cycling, preventing optics mount interference and yielding maximum manual leverage.
Turnkey Conversion Bundle: Simplifies sourcing by packaging a fully populated side-charging upper receiver group, matched blowback BCG, complete lower parts kit (LPK) with fire crystalline control group, and a full stock assembly.
Formidable 10mm Auto Energy: Delivers superior downrange kinetic energy and stopping power compared to standard pistol calibers, packaged into an ultra-agile 5.5-inch footprint.
Straight Blowback Action: Engineered completely without traditional gas blocks or gas tubes, dropping complex wear points to guarantee steady feeding and extraction cycles.

Technical Specifications

Upper Receiver	Gibbz Arms G9 Billet Aluminum M4 Flat Top Side Charging Receiver, Ejection Port Optimized for Pistol Calibers, Enhanced Feed Cone (Type III Hardcoat Anodized)
Charging System	Left-Side Non-Reciprocating Charging System (Static Handle Design)
Barrel Length & Profile	5.5-Inch Medium Profile
Caliber	10mm Auto
Twist Rate	1:16 Twist
Barrel Material	4150 Chrome Moly Vanadium Steel with Premium Corrosion-Resistant Melonite Finish
Gas System Length	Not Needed - Straight Blowback Operation
Handguard	4 Inch Free Float Slim Profile M-LOK Rail System with Integrated Top Picatinny Rail
Muzzle Thread & Device	9/16x24 Thread Pitch with Standard A2 Flash Hider
Bolt Carrier Group	Complete 10mm Blowback Bolt Carrier Group (Nitride Processed / Glock Magazine Compatible)
Lower Parts Kit	Complete AR-15 LPK with Pins, Springs, Detents, Grip, and Polished Mil-Spec Fire Control Group
Stock Assembly	Pistol Buffer Tube Assembly, Heavy 8oz PCC Buffer, Extra Power PCC Spring, Castle Nut, Endplate, and Adjustable High Density Polymer Blade

Why Choose This Product?

Assembling a high-performance 10mm AR setup demands strict component tuning, as straight blowback layouts absorb severe cyclic chamber pressures. The Pro2A 5.5" 10mm NR Side Charging Upper Kit solves this layout constraint by grouping a factory-headspaced nitrided bolt carrier group with an optimized heavy-weight buffer system to control recoil velocity smoothly. Enhanced with a revised feed cone geometry that handles heavy hard-cast wilderness ammunition and defensive hollow points natively, this kit strips away common configuration headaches. It is the definitive choice for personal defense and backcountry operators seeking a premium, flat-shooting weapon system built all in one package.

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