PRO2A 10.5" 458 Socom 1/14 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can
Product Overview
Unleash devastating large-bore energy from a compact setup with the PRO2A 10.5" 458 Socom Pistol Length Melonite M-LOK AR-15 Upper with Flash Can. This premium, factory-assembled upper receiver group delivers heavy-hitting projectile performance without sacrificing modern close-quarters handling. Engineered around a durable 10.5-inch 4150 CMV Melonite-treated barrel with a 1/14 twist rate, this assembly utilizes an integrated slimline linear flash can to properly channel muzzle concussions. It drops seamlessly onto any standard AR-15 lower receiver configured as a pistol or a registered Short Barreled Rifle (SBR).
Key Features
- Linear Blast-Forwarding Flash Can: Directs the significant noise, unburnt powder, and massive concussive forces of the 458 Socom straight downrange, drastically lowering shooter fatigue during indoor or covered firing sessions.
- Premium Melonite / Nitride Treated Barrel: The high-grade 4150 CMV steel barrel is treated inside and out with a liquid QPQ Nitride/Melonite layer, delivering superior surface hardness, reduced throat erosion, and complete corrosion defense.
- Optimized 1/14 Twist Rate: Precision button rifling is dialed in to accurately stabilize a massive range of heavy-grain big-bore cartridges, including standard hunting loads and heavy subsonic rounds.
- Modified Big-Bore Upper Receiver: Machined specifically with an enlarged ejection port to accommodate the massive 458 Socom casing, ensuring unhindered feeding and flawless extraction cycles.
- Extended Free-Float M-LOK Handguard: A slim, lightweight 12-inch handguard completely covers the gas block and wraps around the base of the flash can, offering maximum modular mounting space for lights, sights, and hand stops.
Technical Specifications
| Caliber / Chamber | 458 Socom |
|---|---|
| Barrel Length | 10.5 Inches |
| Barrel Material | 4150 Chrome Moly Vanadium (CMV) Steel |
| Twist Rate | 1:14 Twist Button Rifled |
| Barrel Finish | Melonite / QPQ Nitride Finish |
| Gas System Length | Pistol-Length Gas System with 0.750" Low Profile Gas Block |
| Upper Receiver | Forged 7075-T6 Aluminum, Enlarged Ejection Port, M4 Feed Ramps, Forward Assist & Dust Cover Installed, Type III Hardcoat Anodized |
| Handguard | 12" Premium Slim Free-Float M-LOK Handguard (6061-T6 Aluminum) with Full Top Picatinny Rail |
| Muzzle Thread & Device | 5/8x24 TPI; Slimline Blast-Forwarding Linear Flash Can |
| Manufacturing Origin | 100% Made in the USA |
Why Choose the PRO2A 10.5" 458 Socom Flash Can Upper?
The 458 Socom cartridge brings incredible stopping power to the AR-15 platform, turning it into a highly capable brush gun for large game like hogs, deer, and bear. However, in short-barreled setups, the massive concussive wave generated by big-bore calibers can be disorienting to the operator. The Pro2A Tactical Flash Can Upper Assembly overcomes this completely by using a linear flash can to drive that immense blast energy straight forward away from your workspace. By building this configuration with an enlarged ejection port receiver, a premium Melonite-treated barrel, and a factory-matched big-bore BCG, Pro2A supplies a reliable, flat-shooting, and remarkably comfortable package built to perform under extreme conditions.
