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The PRO2A 16" 6mm ARC 1/7.5 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper Kit delivers ultimate versatile performance and modern precision ballistics in a single, consolidated assembly package. Chambered in the innovative 6mm Advanced Rifle Cartridge (6mm ARC), this comprehensive rifle kit transitions standard operations to a fluid, Non-Reciprocating (NR) side-charging layout. Taking the technical guesswork out of your custom firearm configuration, this package arrives completely equipped with a matching side-charging Bolt Carrier Group (BCG), a full Mil-Spec lower parts kit, and an adjustable rifle stock assembly. It serves as an elite foundation for marksmen who demand flat trajectories, mild recoil, and long-range energy signatures from a standard AR-15 footprint.
| Charging Mechanism: | Non-Reciprocating (NR) Side-Charging System |
| Bolt Carrier Group (BCG): | Premium M16 Profile, Nitride/Melonite Finished, Caliber-Matched Bolt Face, MPI Tested |
| Lower Parts Kit (LPK): | Complete AR-15 Mil-Spec Lower Parts Kit (Includes Polished Trigger, Hammer, Pins, Detents, Springs, and Pistol Grip) |
| Stock Assembly: | Adjustable M4 Buttstock Package with Mil-Spec Receiver Extension, Carbine Buffer Spring, and Buffer |
| Caliber / Chamber: | 6mm ARC (Advanced Rifle Cartridge) |
| Barrel Length & Contour: | 16 Inches Medium Profile Taper |
| Barrel Material: | 4150 Chrome Moly Vanadium Steel - Made for us by Tactical Kinetics |
| Twist Rate: | 1:7.5 Twist |
| Barrel Finish: | QPQ Melonite / Black Nitride Corrosion-Resistant Coating |
| Gas System Length: | Mid-Length Gas System with 0.750" Low Profile Gas Block Set |
| Muzzle Device: | Standard 1/2-28 A2 Flash Hider |
| Upper Receiver Type: | Gibbz Arms G4 Billet Aluminum Side-Charging Receiver, Gen 2 Handle (Type III Hardcoat Anodized) |
| Handguard Profile: | 12 Inch Slim Free-Float Modular M-LOK Rail Layout with Continuous Top Picatinny Rail System |
| Manufacturing Origin: | 100% Proudly Made in the USA |
Superior 6mm ARC Ballistics in a Standard FrameThe 6mm ARC (Advanced Rifle Cartridge) was specifically engineered to deliver low drag, incredibly flat trajectories, and supersonic stability past 1,000 yards. This kit lets you experience the long-range energy and wind-drift resistance typically reserved for heavy, large-frame AR-10 rifles, all while retaining the lightweight agility of a standard AR-15 frame.
Lock Into Your Glass with Non-Reciprocating ControlTraditional rear charging handles require you to break your cheek weld, collapse your shooting stance, and yank a handle right beneath your optical plane to cycle the action. This premium system features a fluid side lever that stays completely stationary while firing. This means zero moving parts near your support hand and fast manual cycling while keeping your eye tightly locked onto your target through your optic.
Balanced, Softer-Cycling Mid-Length Gas LayoutThe mid-length gas system extends the dwell time across the 16-inch barrel profile compared to shorter carbine layouts. This expands the gas pressure curve to deliver a remarkably soft recoil impulse, limits internal mechanical wear, and allows you to track bullet splash or rapid follow-up shots with minimal muzzle rise.
| SKU | P2ANR6ARCAX12MID16-TK-KIT |
|---|---|
| Barrel Length | 16 inch |
| Rifle Caliber | 6mm ARC |
| Manufacturer | Pro2A Tactical |
