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The PRO2A 10.5" 5.56 NATO Carbine Length Upper Kit balances maneuverability and ballistic performance. Engineered with a premium Non-Reciprocating (NR) side-charging handle, this system gives you smooth, manual configuration controls without back-and-forth reciprocating movement or interference from large optics. Arriving fully assembled with a complete lower build package, it represents an ideal tactical upgrade for modern builders.
| Caliber / Chamber | 5.56x45mm NATO (.223 Remington Compatible) |
|---|---|
| Barrel Length | 10.5 Inches |
| Barrel Material | 4150 Chrome Moly Vanadium (CMV) Steel |
| Twist Rate | 1:7 Twist Button Rifled |
| Barrel Finish | Melonite / QPQ Nitride Finish |
| Gas System Length | Carbine-Length Gas System with 0.750" Low Profile Gas Block |
| Upper Receiver | Gibbz Arms G4 Non-Reciprocating Side Charging Billet Aluminum, Gen 2 Handle (Type III Hardcoat Anodized) |
| Handguard | 12 Inch Premium Slim Free-Float M-LOK Rail (6061-T6 Aluminum) with Continuous Top Picatinny Rail |
| Muzzle Thread & Device | 1/2x28 TPI; Slimline Blast Directing Flash Can |
| Bolt Carrier Group | Milspec M16 Profile BCG, Nitride Finish, MPI Tested |
| Lower Parts Kit | Complete Mil-Spec Lower Parts Kit (LPK) with Fire Control Group (Trigger, Hammer, Springs), A2 Grip, and Safety Selection Pins |
| Stock Assembly | Pistol Buffer Tube, Carbine Buffer, Spring, Castle Nut, End Plate, and Pistol Stabilizing Blade |
| Manufacturing Origin | 100% Made in the USA |
Choosing a 10.5-inch barrel provides a noticeable velocity boost over shorter layouts while remaining short enough for tight clearances. The PRO2A Tactical upper layout optimizes this footprint perfectly. By pairing a high-grade 10.5-inch Melonite barrel with a smooth carbine-length gas system and an integrated forward-facing flash can, concussive pressure is directed safely downrange instead of blowing back into your face. Combined with a smooth, rigid non-reciprocating billet side-charging design, manual clearing operations become lightning-fast. Built entirely in the USA by professional armorers, this comprehensive kit ensures uncompromised reliability and elite ergonomics out of the box.
| SKU | P2ANR556GFS12CAR105CAN-TK-KIT |
|---|---|
| Barrel Length | 10.5 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |
