Pro2A 10.5" 10mm Pistol Caliber Melonite M-LOK AR-10mm Upper Kit

PRO2A 10.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper Kit

Description

The Pro2A Tactical 10.5-inch 10mm Auto Pistol Caliber Complete Upper Kit bundles enhanced muzzle velocity and exceptional modular handling into an all-in-one rifle conversion layout. Hand-assembled and quality verified in Georgia, this package includes everything required to convert a standard stripped lower receiver into a highly functional personal defense weapon or short-range tactical carbine. Paired with a heavy-weight blowback bolt carrier group and specialized heavy buffer hardware to confidently manage the cyclic pressures of the 10mm cartridge, it eliminates compatibility guesswork for a streamlined build.

Key Features

All-In-One Transformation Package: Bundles a fully populated 10.5" upper group, matching nitride blowback BCG, standard charging handle, complete lower parts kit (LPK), and a full blade assembly hardware package.
Extended 10.5" Velocity Advantage: An extended 10.5-inch barrel squeezes maximum powder burn efficiency out of the 10mm Auto cartridge, yielding superior downrange velocity thresholds and enhanced accuracy while retaining a portable handling layout.
Straight Blowback Simplicity: Engineered completely without gas blocks or gas tubes, dropping complex mechanical failure points to guarantee steady feeding and extraction cycles.
Premium Melonite Integrity: Treated inside and out with an ultra-hard Melonite finish, maximizing barrel bore life and defending against corrosive elements while offering effortless cleanings.

Technical Specifications

Upper Receiver	Milspec Billet Aluminum M4 Flat Top Receiver, Ejection Port Optimized for Pistol Calibers, Enhanced Feed Cone (Type III Hardcoat Anodized)
Barrel Length & Profile	10.5-Inch Medium Profile
Caliber	10mm Auto
Twist Rate	1:16 Twist
Barrel Material	4150 Chrome Moly Vanadium Steel with Premium Corrosion-Resistant Melonite Finish
Gas System Length	Not Needed - Straight Blowback Operation
Handguard	9 Inch Free Float Slim Profile M-LOK Rail System with Integrated Top Picatinny Rail
Muzzle Thread & Device	9/16x24 Thread Pitch with Standard A2 Flash Hider
Bolt Carrier Group & Handle	Complete 10mm Blowback Bolt Carrier Group (Nitride Processed / Glock Magazine Compatible). Standard Charging Handle
Lower Parts Kit	Complete AR-15 LPK with Pins, Springs, Detents, Grip, and Polished Mil-Spec Fire Control Group
Blade Assembly	Pistol Buffer Tube Assembly, Heavy 8oz PCC Buffer, Extra Power PCC Spring, Castle Nut, Endplate, and Adjustable High Density Polymer Blade

Why Choose This Product?

Transitioning into a hard-hitting 10mm platform requires precise chamber engineering and extraction timing due to the pressures of straight blowback cycling. The Pro2A 10.5" 10mm Upper Kit addresses this challenge entirely by pairing an enhanced feed cone—optimized to smoothly route heavy hard-cast trail rounds and modern defensive hollow points alike—with a perfectly matched heavy buffer assembly. By combining all build components in a factory-headspaced package, it erases standard configuration troubleshooting. It is the ultimate turnkey choice for security-minded operators demanding serious short-range power.

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