Product Overview

The PRO2A 10.5" 458 Socom 1/14 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can Kit provides a comprehensive, high-performance master package engineered to transform your stripped lower receiver into a devastating big-bore tactical framework. Built around a rugged, traditional rear-charging forged receiver featuring an enlarged ejection port, this all-inclusive configuration matches a 10.5-inch micro barrel assembly with an integrated linear blast forwarding device. Pre-packaged with a dedicated 458 SOCOM full-auto profile bolt carrier group, standard charging handle, complete lower parts matrix, and a polymer adjustable blade package, it simplifies custom construction by handling all critical tracking, headspacing, and cycling calculations right out of the box.

Key Features

• All-In-One Complete Kit Pipeline: Consolidates your entire shopping list by providing the internal cycling mechanics, fire control group, lower frame small parts, and stabilizing furniture inside one premium assembly order.
• Devastating Big-Bore Footprint: Compact 10.5-inch barrel setup harnesses the full close-to-medium range stopping authority of the .458 SOCOM cartridge while preserving elite agility in confined operational workspaces.
• Concussive Muzzle Blast Mitigation: Pre-installed slimline flash can drives expanding big-bore gas pressures and heavy sound concussion forcefully downrange, keeping the operator comfortable during closed-structure training.
• Precision 1:14 Twist Stability: Bored specifically with a 1:14 stabilization spin profile to flawlessly guide dynamic heavy-grain hunting, defense, and subsonic projectile weights.
• Liquid QPQ Melonite Preservation: Full-immersion liquid nitriding creates an incredibly slick, hard-wearing surface inside the 4150 CMV steel barrel core to handle sustained friction, gas wear, and humidity.
• Extended Modular Free-Float Rail: A rigid profile M-LOK handguard encapsulates the barrel system, providing a clean top-rail alignment and cleanly recessing the flash can underneath to extend your forward support grip real estate.

Technical Specifications

Why Choose This Product

Opting for this complete .458 SOCOM upper kit removes the common headache of finding matching workspace components for heavy large-bore cartridges. Because big-bore weapons depend heavily on exact bolt head dimensions, reliable feed ramps, and appropriate buffer geometries, using a factory-matched kit eliminates feeding and extraction failures out of the box. Furthermore, the inclusion of a linear flash can completely eliminates the aggressive lateral concussive shockwave and blast signature typical of short 10.5-inch barrels, making it considerably more comfortable to shoot from covered hunting structures or indoor lines. Manufactured entirely in the USA from premium grade alloys, this master build system ensures absolute operational reliability for heavy hunting or defense applications.