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The P2A PATRIOT 13.7" 5.56 NATO AR-15 Rifle - Pinned & Welded is a professional-tier tactical carbine custom-engineered to offer the handling advantages of a short-barreled rifle without any of the federal licensing or tax stamp requirements. Chambered in the universally available, duty-proven 5.56 NATO caliber (fully backward-compatible with .223 Remington), this platform leverages a premium 13.7-inch barrel combined with a permanently pinned and welded extended muzzle device. This specialized armorer application extends the barrel structure to a true, non-NFA compliant 16.1-inch overall length, allowing it to host a standard adjustable stock natively. Operating on an optimized mid-length direct-impingement gas setup, this weapon system is calibrated to ensure incredibly smooth cycling dynamics, balanced bolt carrier group velocity, and minimum internal component wear under aggressive operational cadences.
Every Patriot pinned & welded rifle layout is machined to strict technical parameters and built to guarantee smooth target transitions and robust extraction reliability. Hand-assembled by an experienced team of professional armorers, each upper receiver assembly undergoes exhaustive headspacing and structural evaluation to establish absolute tracking consistency. Out of the box, it seamlessly bridges the gap between tactical compact velocity and complete structural reliability because every patriot deserves an uncompromised defensive tool.
| Caliber Compatibility | 5.56 NATO (Fully compatible with .223 Remington ammunition) |
|---|---|
| Barrel Length & Steel | 13.7 Inch Medium Profile, 4150 Chrome Moly Vanadium Steel, Melonite Treated |
| Twist Rate | 1:7 Twist (Optimized to stabilize heavy duty 55gr to 77gr loads) |
| Upper Receiver | Milspec Forged 7075-T6 Aluminum, M4 Feed Ramps, Forward Assist & Dust Cover, Type III Hardcoat Anodized Black |
| Lower Receiver | Mil-Spec Forged 7075-T6 Aluminum, Type III Hardcoat Anodized Black Finish |
| Gas Operating Block | Mid-Length Gas System, Low-Profile Gas Block Machined from 4140 Steel, Stainless Steel Gas Tube |
| Muzzle Device | Standard 1/2-28 Thread Pitch, Pro2A Flash Guardian 3 Prong Flash Hider - Pinned & Welded (to achieve 16 inches in barrel length) |
| Handguard Rail | 12" Slim Free-Float M-LOK Handguard, Machined from 6061-T6 Aluminum with Top Picatinny Rail |
| Bolt Carrier Group | Full Auto M16 Profile, 8620 Carrier, 9310 Bolt, Nitride Treated, Properly Staked Gas Key, MPI Tested |
| Charging Handle | Standard Milspec AR-15 Charging Handle |
| Lower Parts Kit | Complete Mil-Spec Lower Parts Kit (LPK) with Crisp Single-Stage Fire Control Group and Standard A2 Grip |
| Stock Assembly | Milspec Adjustable M4 Stock, 6 Position Carbine Buffer Tube, Standard 3oz Buffer, Buffer Spring andh Hardware |
| Magazine | (1) PMAG or Similar Compatible Magazine |
| Manufacturing Origin | 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty |
The P2A PATRIOT 13.7" 5.56 NATO Pinned & Welded Rifle entirely eliminates the regulatory boundaries and compliance hurdles of modern short-barrel rifle (SBR) configurations. By permanently pinning and welding an extended muzzle device to the threads of a nimble 13.7-inch barrel, this weapon platform satisfies federal length laws natively out of the box. You completely bypass the costs of tax stamps, waiting periods, and interstate travel notifications, gaining immediate peace of mind and full modular usability across jurisdictions.
Additionally, this 13.7-inch configuration creates an exceptionally balanced tactical weapon structure. By bringing the weight and rotating center of gravity inward toward the operator, it excels at close-quarters clearing operations, truck-gun readiness, and dynamic competition. Paired with a smooth mid-length gas loop that controls weapon pressure, a free-float M-LOK rail shroud, and a precision-fit 1:7 twist barrel, this firearm delivers top-tier handling agility and unmatched mechanical timing without structural compromise.
Partnering with some of the best manufacturers in the industry, we bring you a line of rifles and pistols with unrivaled quality for the cost, the “Patriot”. Every Patriot firearm is carefully built and assembled by our team of experienced armorers who knows the importance of reliability and repeatability. Every component is manufactured to milspec or better standards to ensure a high quality firearm is produced. Whether it is for sporting, hunting, or recreational needs, our Patriot Line of rifles and pistols is more than capable to live up to the task. The Patriot line combines quality with affordability because every patriot deserves it.
| SKU | P2APAT-556AX12MID137-1.7-M-BA-PW |
|---|---|
| Model | PATRIOT |
| Barrel Length | 13.7 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |
