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Step up to an intermediate defensive and hunting powerhouse engineered to dramatically outpace traditional sub-caliber limits without upgrading to a heavy, oversized AR-10 platform. The P2A PATRIOT 16" 6.8 SPC II Mid-Length Melonite M-LOK Rifle is a fully assembled, factory function-tested complete firearm built to deliver maximum downrange terminal velocity and structural reliability right out of the box. While standard intermediate platforms frequently compromise kinetic impact at medium ranges, this model pairs a precision 16-inch 4150 CMV steel barrel with the optimized chamber dynamics of the 6.8 SPC II cartridge. Originally engineered to elevate intermediate terminal ballistics, this caliber achieves complete powder efficiency in standard-length barrels, providing substantial energy footprint expansion, superior barrier penetration, and flat trajectory paths. This hard-hitting medium-bore 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 lower parts execution, this turnkey AR rifle completely eliminates building stress. Proudly 100% designed, machined, and precision-assembled in the USA with a Pro2A Tactical Lifetime Factory Warranty.
| Caliber Compatibility | 6.8 SPC II |
|---|---|
| Barrel Length & Steel | 16 Inch Medium Profile, 4150 Chrome Moly Vanadium Steel, Melonite Treated |
| Twist Rate | 1:10 Twist (Optimized to stabilize standard and match grade hunting 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 Device | Standard 5/8-24 Thread Pitch, A2 Flash Hider with Crush Washer Pre-Installed |
| 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) 6.8 SPC II AR-15 Compatible Magazine |
| Manufacturing Origin | 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty |
The P2A PATRIOT 16" 6.8 SPC II M-LOK Rifle directly solves the most common technical issues encountered with standard custom rifle builds: violent cycling, sub-optimal pressure regulation, and part-by-part tolerance stacking. When constructing specialized medium-bore platforms from mismatched manufacturers, builders frequently fight extraction failures or gas timing headaches due to inconsistent 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 16-inch barrel optimized for the 6.8 SPC II cartridge strikes the ultimate operational sweet spot for downrange energy and intermediate-range portability. Originally engineered to improve upon the terminal performance limitations of the 5.56 NATO caliber without moving to a heavy AR-10 frame, the 6.8 SPC II delivers devastating kinetic impact and enhanced barrier penetration. Paired here with a smooth mid-length gas operating system, this setup broadens the internal gas pressure dwell time. This tames system cycling speed, smooths out case extraction, and drastically minimizes felt muzzle flip, ensuring faster follow-up shots whether you are on the clock or stalking a target in the field.
Built to withstand rugged training fields and harsh environments, the combination of forged 7075-T6 aluminum and a deep chemical Melonite barrel treatment guarantees lasting protection against rapid gas port erosion and outdoor moisture. This core durability ensures long-term accuracy and structural preservation across heavy operational cycles. Backed completely by Pro2A Tactical's signature Lifetime Factory Warranty and built with 100% American craftsmanship, the PATRIOT rifle offers professional, defense-ready security with complete peace of mind.
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-68ACT12MID16-1.10-M-HT |
|---|---|
| Model | PATRIOT |
| Barrel Length | 16 inch |
| Rifle Caliber | 6.8 SPC II |
| Manufacturer | Pro2A Tactical |