PRO2A 8" 9mm 1/10 Pistol Caliber Melonite M-LOK Upper with Flash Can

Product Overview

The PRO2A 8" 9mm 1/10 Pistol Caliber Melonite M-LOK Upper with Flash Can delivers a highly optimized, compact top-end solution engineered specifically for your custom AR-9 PCC platform. Built as a **standalone barreled upper receiver assembly only**, this 8-inch system hits the absolute sweet spot for 9x19mm ballistics, achieving maximum velocity and powder burn efficiency without adding unnecessary bulk. Complete the custom build with your preferred (or choose ours) 9mm blowback bolt carrier group, charging handle, and dedicated pistol caliber lower receiver assembly.

Key Features

Upper Receiver Assembly Only: Provides a clean foundation for builders looking to source their own (or ours) components and lower receivers without paying for redundant parts.
Optimized Ballistic Velocity: The 8-inch barrel profile extracts peak velocity performance out of standard and defensive 9mm cartridges over shorter micro configurations.
Precision 1:10 Twist Stabilization: Engineered to provide flawless rotational stabilization for everything from light 115gr training ammo to heavy 147gr subsonic projectiles.
Concussive Flash Can Shielding: Integrated linear blast can completely encapsulates the short muzzle thread, forcing high-pressure gases and heavy blast sound downstream away from the operator.
Extended Free-Float Handguard: Features an ultra-lean modular M-LOK rail system that cleanly recesses the muzzle assembly underneath, extending your forward support grip real estate.
Liquid QPQ Melonite Preservation: Full-immersion nitriding infuses deep sub-surface defense across the 4150 CMV barrel steel, resisting sustained friction heat and harsh field humidity.

Technical Specifications

Upper Receiver	AR-15 Mil-Spec Billet Aluminum, Sized with Ejection Port Profiled for Pistol Calibers, Type III Hardcoat Anodized Black
Barrel Length & Profile	8-Inch Medium Profile
Caliber	9mm Pistol Caliber (9x19mm)
Twist Rate	1:10 Twist Rate (Optimized for standard and heavy-grain 9mm loads)
Barrel Material	4150 Chrome Moly Vanadium Steel with Premium Melonite/QPQ Treatment
Gas System	Direct Blowback Architecture - No Gas Block or Gas Tube Required
Handguard	9-Inch Free Float Slim Profile M-LOK Rail System (Recesses muzzle assembly cleanly)
Muzzle Device	Slimline Blast-Forwarding Linear Flash Can (1/2x28 Thread Pitch)

Why Choose This Product

Opting for this standalone 8-inch 9mm barreled upper receiver assembly grants you high-performance tactical capability without the cost of unneeded package extras. Transitioning muzzle blast forward via the integrated linear device remedies the aggressive lateral concussion common to micro pistol configurations, making it considerably more comfortable to shoot indoors or from behind cover. Additionally, the 8-inch barrel ensures a complete powder burn for consistent cycling and superior downrange groupings. Manufactured entirely in the USA from premium grade alloys, this upper platform ensures reliable, heavy-hitting operational capability right out of the box.