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The P2A HERO 11.5" 5.56 NATO 1/7 Carbine Length Melonite M-LOK Rifle (SBR) is a professional-grade Short Barreled Rifle custom-engineered to deliver exceptional reliability, durability, and shootability in a compact platform. Chambered in the duty-proven 5.56 NATO caliber (fully backward-compatible with .223 Remington), this legal NFA weapon represents the next evolution beyond the standard Patriot line. By upgrading to premium billet 7075-T6 aluminum receivers, the Hero Series provides enhanced structural rigidity, a beefed-up upper for greater durability, a flared magwell for faster magazine changes, and an integrated enhanced trigger guard that makes glove-friendly operation easier. The 11.5-inch barrel length is widely regarded as the operational sweet spot for short-barreled 5.56 platforms, offering excellent powder burn, higher muzzle velocity, and improved dwell time compared to shorter micro configurations while remaining highly maneuverable for close-quarters use.
Built around a precision 11.5-inch medium-profile 4150 Chrome Moly Vanadium barrel with a 1:7 twist rate and Melonite/Nitride treatment from Kinetic MFG, this platform ensures consistent stabilization of both standard and heavier defensive projectiles. Paired with a carbine-length direct-impingement gas system and low-profile gas block, it delivers smooth, reliable cycling across a wide range of ammunition. Finished with Type III hardcoat anodizing for long-term corrosion resistance and field durability, every Hero firearm undergoes rigorous assembly and testing by experienced armorers.
| Caliber | 5.56 NATO (Fully compatible with .223 Remington ammunition) |
|---|---|
| Barrel Length & Steel | 11.5 Inch Medium Profile, 4150 Chrome Moly Vanadium Steel, Nitride/Melonite Treated – made for us by Kinetic MFG |
| Twist Rate | 1:7 Twist (Optimized to stabilize 55gr–77gr loads) |
| Upper Receiver | AR-15 Mil-Spec Machined out of 7075-T6 Billet Aluminum, M4 Feed Ramps, Type III Hardcoat Anodized Black with Forward Assist and Ejection Port Cover Installed |
| Lower Receiver | Mil-Spec AR-15 MACHINED out of 7075-T6 Billet Aluminum, Integrated Trigger Guard, Flared Magwell, Type III Hardcoat Anodized Black |
| Gas Operating System | Carbine-Length Direct Impingement Gas System, Stainless Steel Gas Tube, Low-Profile Gas Block Machined from 4140 Steel |
| Muzzle Device | Standard 1/2-28 A2 Flash Hider with Crush Washer |
| Handguard Rail | 10" Slim Free-Float M-LOK Handguard, Machined from 6061-T6 Aluminum with Top Picatinny Rail |
| Bolt Carrier Group | 223/5.56 Caliber, Full Auto M16 Profile, 8620 Carrier, 9310 Bolt, Nitride Treated, Properly Staked Gas Key, MPI Tested |
| Charging Handle | Standard Mil-Spec AR-15 Charging Handle |
| Lower Parts Kit & Trigger | Exclusive PRO2A 3.5lb Crisp Pull Single-Stage Fire Control Group with Polished Trigger & Hammer, Standard Grip & Complete Mil-Spec Lower Parts |
| Stock Assembly | Upgraded PRO2A SOPMOD Stock, 6-Position Carbine Buffer Tube, Standard 3oz Buffer, Buffer Spring, Latch Plate and Castle Nut |
| Magazine | (1) PMAG or Similar Compatible Magazine |
| Manufacturing Origin | 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty |
| SKU | P2AHR-556BW12CAR125-1.7-M-KM-SBR |
The P2A HERO 11.5" 5.56 NATO SBR elevates the standard short-barreled rifle experience by addressing common limitations of entry-level platforms through premium billet construction and thoughtful ergonomic upgrades. The switch to billet 7075-T6 receivers delivers greater strength and rigidity while the flared magwell and enhanced trigger guard improve reload speed and usability with gloves—features that make a real difference in dynamic or high-stress scenarios. Combined with the exclusive Pro2A 3.5lb curved trigger and SOPMOD stock, the platform offers noticeably better shootability and control right out of the box.
The 11.5-inch barrel length with carbine gas system provides an excellent balance of velocity, powder burn, and reliability that many users prefer over both shorter micro barrels and longer carbines. Melonite treatment on the Kinetic MFG barrel adds corrosion resistance and longevity, while the nitride BCG and carefully assembled components ensure consistent function across a wide range of 5.56 and .223 ammunition. Whether used for sporting, training, defensive, or recreational purposes, this SBR delivers the durability and performance expected from Pro2A Tactical.
Introducing our "Hero" series line of rifles and pistols. With feedback from professionals and customers, the Hero line improves upon the Patriot line with additional features that enhances shootability . Our rilfe caliber Hero line replaces the standard forged receivers with a premium set of Billet Aluminum receivers - made from quality 7075-T6 billet aluminum, the upper receiver is beefed up to enhance durability and ruggedness. The lower receiver has a flared magwell and enhanced trigger guard that will allow for faster magazine changes and makes shooting with gloves easier. Our HERO SBRs also comes standard with our exclusive Pro2A 3.5lb Milspec Curved Trigger and also comes standard with the popular SOPMOD stock. And just like our patriot line, every Hero firearm goes through a stringent series of checks/tests and is meticulously put together to ensure a high quality weapon is produced. The Hero line is suitable for all kinds of scenarios and has the reliability and performance you come to expect from Pro2A Tactical. Because sometimes all you need is a Hero.
| SKU | P2AHR-556BW10CAR115-1.7-KM-SBR |
|---|---|
| Model | HERO |
| Barrel Length | 11.5 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |
