PRO2A 12.5" 350 Legend Pistol Upper with Flash Can | PRO2A Tactical

PRO2A 12.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can

Product Overview

The PRO2A 12.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can brings optimized hunting energy and superior blast control into a compact, specialized package. Chambered in the hard-hitting straight-walled 350 Legend cartridge, this complete upper receiver assembly balances intermediate barrel length with enhanced shooter comfort. To successfully manage the raw muzzle blast inherent to shorter large-bore configurations, this model features an integrated project-forward linear Flash Can muzzle device tucked cleanly beneath the free-float rail. It serves as an exceptional choice for straight-wall compliant hunting regions, close-quarters field maneuvers, or premium home-defense builds.

Key Features

Linear Flash Can Muzzle Device: Tames severe short-barrel muzzle blast by forcing high-pressure sound energy, thermal expansion, and aggressive concussive shock waves directly downrange away from the operator.
Optimal 12.5-Inch Pistol Profile: Strikes the ultimate compromise—delivering significant velocity advantages and downstream impact energy over micro-pistols while remaining light and fast-handling.
Precision 1/16 Twist Rate: Precision-rifled land profile engineered explicitly to rotationally stabilize common heavy hunting and defensive grain variations of .357 straight-wall projectiles.
QPQ Melonite Surface Hardening: Premium Salt Bath Nitride finish shields internal rifling and external steel surfaces against corrosive moisture, rapid thermal transfer, and surface scoring.
Tuned Pistol Gas Calibration: Paired with a low-profile gas block to guarantee positive straight-wall extraction, reliable dwell time, and exceptionally smooth cycling mechanics.
Slim Free-Float Modular Handguard: Enhances intrinsic accuracy by isolating barrel harmonics while supplying modular M-LOK attachment slots and an expansive top Picatinny rail.

Technical Specifications

Caliber / Chamber:	350 Legend (Straight-Wall Regulation Compliant)
Barrel Length & Contour:	12.5 Inches Medium Profile
Muzzle Device:	5/8-24 TPI Slimline Linear Flash Can (Blast Forwarder Device) Tucked Under Rail
Barrel Material:	4150 Chrome Moly Vanadium Steel
Twist Rate:	1:16 Twist
Barrel Coating Finish:	QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining
Gas System Length:	Pistol-Length Gas System with 0.750" Low Profile Gas Block
Upper Receiver Type:	Mil-Spec Forged 7075-T6 Aluminum Upper, Forward Assist & Port Cover (Type III Hardcoat Anodized with Enlarged M4 Feed Ramps)
Handguard Profile:	15 Inch Slim Free-Float Modular M-LOK Rail Layout (Extended layout to partially tuck Flash Can)
Manufacturing Origin:	100% Proudly Made in the USA

Why Choose This Product?

For deer hunters and marksmen operating under straight-wall legislative limits, the 350 Legend cartridge provides an exceptional balance of low recoil and massive kinetic transfer. While traditional 16-inch or 20-inch setups maximize power, they often become unwieldy inside compact tree stands, ground blinds, or vehicles. Conversely, ultra-short barrels restrict full propellant combustion and cause punishing side concussion. The PRO2A 12.5" Upper with Flash Can addresses every hurdle elegantly.

By pairing a heavy-duty US-made 4150 steel barrel with a project-forward linear flash can, harsh sound pressure and muzzle flame are directed completely away from your face and ears. Finished with a highly durable Melonite barrel lining and a rigid, lightweight free-float M-LOK rail system, this drop-in platform strips away configuration headaches to give you a clean-cycling precision powerhouse built for severe field service straight out of the box.

More Information

More Information
SKU	P2A350LGFS15PIS125CAN-TK
Rifle Caliber	350 Legend
Manufacturer	Pro2A Tactical

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