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Step up to an elite personal defense and close-quarters powerhouse engineered to dramatically outpace traditional sub-compact limits without losing terminal ballistics or cycling performance. The P2A PATRIOT 5" 300 Blackout Micro-Length Melonite M-LOK Pistol is a fully assembled, factory function-tested complete firearm built to deliver maximum close-range suppression efficiency and structural reliability right out of the box. While standard short-barrel configurations frequently struggle to properly stabilize heavy projectiles or suffer from gas pressure drops, this model pairs a precision 5-inch 4150 CMV steel barrel with an ultra-fast 1:5 twist rate. Originally engineered to optimize the 300 Blackout cartridge in extremely short footprints, this aggressive rifling profile completely stabilizes heavy subsonic loads (up to 220-grain+) instantly upon gas-port departure, eliminating keyholing and protecting expensive suppressor baffles from devastating strikes. This hard-hitting package is driven by a finely tuned, proprietary micro-length gas operating system. By optimizing internal gas expansion timing within a highly compressed envelope, this profile ensures clean case extraction, standard component longevity, and remarkably flat cycling tempos. Featuring a lightweight free-float M-LOK rail and robust lower parts execution, this turnkey AR pistol completely eliminates building stress. Proudly 100% designed, machined, and precision-assembled in the USA with a Pro2A Tactical Lifetime Factory Warranty.
| Caliber Compatibility | 300 AAC Blackout (7.62x35mm) |
|---|---|
| Barrel Length & Steel | 5 Inch Medium Profile, 4150 Chrome Moly Vanadium Steel, Melonite Treated |
| Twist Rate | 1:5 Twist (Optimized to fully stabilize heavy subsonic and match projectiles out of micro barrels) |
| 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 | Micro-Length Gas System, Low-Profile Gas Block Machined from 4140 Steel, Stainless Steel Gas Tube |
| Muzzle Device | Standard 5/8-24 Thread Pitch, Slimline Flash Can |
| Handguard Rail | 7" 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 |
| Blade Assembly | High Density Polymer Adjustable Blade, Pistol Buffer Tube, Standard 3oz Buffer, Buffer Spring, Castle Nut, Latch Plate |
| Magazine | (1) 300 Blackout AR-15 Compatible Magazine |
| Manufacturing Origin | 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty |
The P2A PATRIOT 5" 300 Blackout M-LOK Pistol directly solves the most common technical issues encountered with standard custom short-barrel builds: keyholing, sub-optimal subsonic backpressure regulation, and part-by-part tolerance stacking. When constructing micro personal defense weapons from mismatched manufacturers, builders frequently fight baffle strikes or cyclical gas headaches due to slow twist cycles or inadequate port diameters. Pro2A Tactical completely eliminates these engineering frustrations by headspacing, aligning, and function-testing the entire operating block as a single unit, ensuring that the bolt, barrel extension, gas port, and buffer system interface flawlessly right out of the box.
Furthermore, choosing a 5-inch barrel optimized for the 300 Blackout cartridge strikes the ultimate operational sweet spot for maximum close-quarters concealment and hard-hitting tactical flexibility. Originally engineered to achieve full powder burn inside incredibly brief cycles without requiring the mechanical bulk of an AR-10, the 300 BLK excels downrange. Paired here with a fast 1:5 twist operating system, this setup accelerates projectile rotation to ensure stable flight geometry across both hyper and subsonic load scales, delivering superior energy expansion and cleaner suppression dynamics in confined environments.
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-300GFS7MIC5CAN-1.5-HT |
|---|---|
| Model | PATRIOT |
| Barrel Length | 5 inch |
| Rifle Caliber | 300 Blackout |
| Manufacturer | Pro2A Tactical |