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Step up to an exceptionally agile defensive and tactical workhorse engineered to maximize dynamic carbine tracking and close-quarters handling without crossing into NFA Short-Barreled Rifle (SBR) registry burdens. The P2A PATRIOT 14.5" 5.56 NATO Mid-Length M-LOK Rifle - Pinned & Welded is a fully assembled, factory function-tested complete firearm built to deliver maximum handling speeds and absolute mechanical stability right out of the box. While building standard short-barrel configurations forces operators to deal with federal tax stamp waiting periods or compromise on brace compliance updates, this model pairs a nimble 14.5-inch 4150 CMV steel barrel with a permanently attached extended muzzle profile. Mechanically pinned and welded in place by certified armorers, this setup reaches a full federal 16-inch compliance length, allowing users to run standard adjustable shoulder stocks freely. This hard-hitting core is counterbalanced by a true mid-length gas operating system. By extending internal gas pressure dwell time, this profile expands component cycle timing, resulting in an exceptionally smooth recoil pulse, cleaner case extraction, and significantly minimized muzzle flip. Featuring a lightweight free-float M-LOK rail and robust mil-spec lower parts execution, this turnkey AR carbine completely eliminates building stress. Proudly 100% designed, machined, and precision-assembled in the USA with a Pro2A Tactical Lifetime Factory Warranty.
| Caliber | 5.56 NATO |
|---|---|
| Barrel Length & Steel | 14.5 Inch Medium Profile, 4150 Chrome Moly Vanadium Steel, Melonite Treated |
| Twist Rate | 1:7 Twist (Optimized to stabilize heavy duty, high-grain tactical and match projectiles) |
| 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 Hardware Set | Standard 1/2-28 Threads, Extended A2 Flash Hider, Permanently Attached via Pin & Weld (Brings Barrel OAL to 16.0") |
| 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, Heavy Duty 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 | 6-Position Adjustable Carbine M4 Stock with Mil-Spec Buffer Tube, Buffer Spring, and Buffer Weight Setup |
| Magazine | (1) PMAG or Similar Magazine |
| Manufacturing Origin | 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty |
The P2A PATRIOT 14.5" 5.56 NATO M-LOK Pinned & Welded Rifle directly solves the most common technical and regulatory issues encountered with standard custom short-barrel builds: tracking compliance metrics, violent cycling, and part-by-part tolerance stacking. When constructing specialized short-barrel platforms from mismatched manufacturers, builders frequently fight extraction failures or gas timing headaches due to inconsistent port diameters. Pro2A Tactical completely eliminates these engineering and administrative frustrations by headspacing, aligning, and function-testing the entire operating block as a single unit, while executing a rock-solid, permanent muzzle lock that clears all federal registration concerns right out of the box.
Furthermore, choosing a 14.5-inch barrel optimized for the 5.56 NATO cartridge strikes the ultimate operational sweet spot for weapon transitions and intermediate-range portability. Originally engineered to improve handling speeds inside vehicles and confined urban areas without sacrificing defensive kinetic velocity profiles, this barrel configuration handles flawlessly. Paired here with a smooth mid-length gas operating system, this setup broadens the internal gas pressure dwell time, tames system cycling speed, smooths out case extraction, and drastically minimizes felt muzzle flip, ensuring exceptionally fast, accurate follow-up shots whether you are on the clock or deploying the weapon in defensive positions.
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-556GFS12CAR145-1.7-M-TK-PW |
|---|---|
| Model | PATRIOT |
| Barrel Length | 14.5 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |
