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Experience advanced mechanics, seamless charging control, and compact rifle handling without typical federal restrictions. The PRO2A 14.5" 5.56 NATO Non-Reciprocating (NR) Side Charging Upper Kit with Flash Can redefines tactical manual of arms by incorporating a side-charging design where the handle remains static while firing. This 14.5-inch setup integrates an extended slimline flash can permanently pinned and welded down to the muzzle threads, pushing the physical length past the federal 16-inch minimum threshold to completely bypass NFA or brace restrictions. Operating on a smooth mid-length direct impingement setup, this system drops port velocities to yield remarkably flat, soft-recoiling behavior. The recessed flash can routes concussive acoustic shockwaves downrange away from your ears, while the extended 15-inch free-float M-LOK rail supplies continuous modular accessory real estate. Bundled alongside a full lower parts compilation group and a standard rifle stock assembly, this kit upgrades your standard stripped lower receiver into an elite defensive platform.
| Upper Receiver | Gibbz Arms G4 Billet Aluminum, Non-Reciprocating Left-Side Charging Configuration, Right-Hand Ejection Port, Type III Hardcoat Anodized Black |
|---|---|
| Charging Handle | Left-Side Non-Reciprocating Charging Handle (Stays static when firing) |
| Bolt Carrier Group | Milspec Side-Charging M16 Full Auto Profile, 5.56 NATO Caliber, QPQ Nitride/Melonite Treated, MPI Tested, 8620 Carrier with 9310 Steel Bolt |
| Barrel Length & Profile | 14.5-Inch Medium Profile (Brings overall length to 16.1 Inches via Pin & Weld) |
| Caliber | 5.56 NATO (Safely accepts both 5.56x45mm NATO and .223 Remington factory ammunition) |
| Twist Rate | 1:7 Twist Rate (Highly optimized for stabilizing standard 62gr to heavy 77gr match ammunition) |
| Barrel Material | 4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish |
| Gas System | Mid Length Direct Impingement with Low-Profile Gas Block |
| Handguard | 15-Inch Free Float Slim Profile M-LOK Handguard Rail System |
| Muzzle Device | Extended Slimline Flash Can, 1/2x28 TPI, Permanently Pinned and Welded for Legal Rifle Compliance |
| Lower Parts Kit | Complete AR-15 Lower Parts Kit (LPK) including Pivot/Takedown Pins, Bolt Catch, Magazine Catch, Springs, Detents, Standard Pistol Grip, and Mil-Spec Fire Control Group (Trigger & Hammer Assembly) |
| Stock Assembly | M4 Carbine Adjustable Buttstock, 6-Position Mil-Spec Buffer Tube (Receiver Extension), Carbine Recoil Buffer, and Spring |
The 14.5-inch pinned and welded layout remains the premier option for shooters demanding maximum maneuverability on a defensive carbine without accepting the legal limitations of a pistol brace or short-barreled rifle classification. By updating this setup with a premium, non-reciprocating side-charging upper assembly and a forward-blast redirecting flash can, Pro2A Tactical removes the structural confusion from custom builds, ensuring operators can step up to premium performance safely and comfortably.
| SKU | P2ANR556AX15CAR145CAN-TK-PW-KIT |
|---|---|
| Barrel Length | 14.5 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |