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Optimize your manual manipulation efficiency, maintain uninterrupted target tracking through high-magnification optics, and maximize downrange velocity on standard AR platforms with a perfectly matched builder component ecosystem. The PRO2A 24" 6mm ARC Non-Reciprocating (NR) Side Charging Rifle Length Upper Kit combines enhanced custom-shop weapon handling with masterfully matched long-range parts. This premium configuration moves cycling operations to an ergonomic left-side charging mechanism that remains stationary during live-fire strings, preserving optical target indexing. Centered on an ultra-long 24-inch medium profile barrel, this setup extracts the maximum ballistic footprint from Hornady's advanced 6mm ARC cartridge. Accompanied by a precision-headspaced side-charging bolt carrier assembly, full internal lower components, and a robust adjustable stock system, this comprehensive builder kit removes all parts pairing guesswork from your next workbench precision rifle assembly.
| Upper Receiver | Gibbz Arms G4 Premium Billet Aluminum, Left-Side Non-Reciprocating Side Charging Handle, Right-Hand Side Ejection, Type III Hardcoat Anodized Black |
|---|---|
| Charging System | Dedicated Non Reciprocating Side Charging Handle (Handle Stays Static - Opposite Side of Ejection Port) |
| Barrel Length & Profile | 24-Inch Medium Profile |
| Caliber | 6mm ARC (Advanced Rifle Cartridge) |
| Twist Rate | 1:7.5 Twist |
| Barrel Material | 4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish |
| Gas System | Rifle Length Direct Impingement with Low-Profile Gas Block |
| Bolt Carrier Group (BCG) | Milspec Full Auto M16 Profile,Nitride Finish, 9310 Bolt, 8620 Carrier, MPI Tested |
| Lower Parts Kit | Complete AR-15 Lower Parts including Mil-Spec Trigger Group, Springs, Detents, Pins, and Pistol Grip |
| Stock Assembly | Adjustable Mil-Spec M4 Stock, Mil-Spec 6 Position Buffer Tube, Weighted Recoil Buffer, and Buffer Spring |
| Handguard System | 15-Inch Free Float Slim Profile Aluminum M-LOK Rail with Continuous Top Picatinny Real Estate |
| Muzzle Device | Standard A2 Flash Hider, 5/8-24 TPI |
The combination of a non-reciprocating side charger and the 6mm ARC cartridge completely solves the primary challenges of long-range shooting on an AR-15 frame: awkward rear manipulation beneath large scopes and downrange wind vulnerability. Buying a complete kit guarantees seamless mechanical timing balance between your extractor tolerances, carrier weight variables, and internal spring coefficients. Pro2A Tactical houses these benefits inside an American-made, ready-to-run system that delivers extreme cycling stability and sub-MOA reliability straight out of the box.
| SKU | P2ANR6ARCAX15RIF22-P2A-KIT |
|---|---|
| Barrel Length | 24 inch |
| Rifle Caliber | 6mm ARC |
| Manufacturer | Pro2A Tactical |