Product Description

The PRO2A 14.5" 5.56 NATO Mid Length Melonite M-LOK Upper Receiver Assembly provides the ultimate answer for shooters looking to achieve a compact carbine profile without dealing with NFA short-barreled rifle paperwork. This assembly features an extended muzzle device that is professionally pinned and welded to permanently bring the overall barrel length past the standard legal 16-inch threshold. Mated to a precision forged receiver shell and equipped with an ultra-smooth mid-length gas system, it drops directly onto any standard AR-15 lower receiver to create an exceptionally balanced, highly maneuverable defensive tool.

Key Features

• Non-NFA Legal Compliance: An extended muzzle profile is permanently attached using a seamless pin-and-weld technique, providing short-carbine ergonomics while safely meeting full legal length requirements.
• Smoother Mid-Length Gas Profile: Employs an optimized gas-port distance to naturally lower slide speed and pressure spikes, minimizing parts wear and smoothing out overall rifle recoil patterns.
• High-Flexibility 1/7 Twist Rate: Precision-grooved barrel infrastructure effectively stabilizes heavy-duty 62gr to 77gr duty and match ammo types over extended distances.
• Premium Melonite Structural Defense: Heavy-duty 4150 CMV steel is thoroughly liquid nitrided to secure supreme environmental corrosion resistance and a longer bore throat life.

Technical Specifications

Why Choose This Product?

This premium 14.5-inch pinned and welded assembly bridges the structural gap between tight close-quarters handling and zero-compromise legal compliance. By utilizing an optimal mid-length gas system configuration, it eliminates the harsh over-gassed cycling common to traditional carbine-length short builds. Built with premium melonite barrel protection and wrapped in a rigid free-floating M-LOK shell, it equips home builders and tactical operators with an exceptionally rugged, well-balanced rifle assembly built to perform reliably over continuous hard-use cycles.