PRO2A 7.5" 400 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper | Pro2A Tactical

PRO2A 7.5" 400 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper

Product Description

Pack immense straight-wall knockdown power into an ultra-compact package. The PRO2A 7.5" 400 Legend Pistol Length Melonite M-LOK Upper Assembly delivers maximum maneuverability without sacrificing the hard-hitting impact of Winchester's 400 Legend cartridge. Specially engineered to handle the unique case geometry and pressure matrix of straight-walled hunting rounds, this upper is ideal for custom pistol configuration or NFA short-barrel rifle tracking builds. Constructed around a premium forged 7075-T6 aluminum receiver with feed geometry optimized for thick straight-wall ammunition body cycling, it features a 7.5-inch 4150 CMV barrel. The stable 1:16 twist rate keeps heavy hunting projectiles stable over short distances, delivering incredible kinetic energy transitions.

Key Features

Ultra-Compact 7.5" Design: Delivers extreme maneuverability in tight brush environments or close quarters while throwing hard-hitting big bore projectiles.
High-Impact 400 Legend Caliber: Custom chambered to deploy Winchester's straight-wall platform, providing heavy energy signatures from a highly portable configuration.
Specialized Straight-Wall Feed Optimization: Receiver feed contours are structured explicitly to prevent standard feeding hiccups associated with thick straight-walled ammunition.
Free-Float Slim M-LOK Rails: Rugged aluminum free-float handguard system isolates the short barrel profile from hand pressure to protect inherent mechanical consistency.
Liquid Bath Nitride Finish: Full interior and exterior QPQ Melonite barrel treatment ensures maximum lifecycle defense against severe friction, heat wear, and harsh environmental moisture.

Technical Specifications

Upper Receiver	Mil-Spec Forged 7075-T6 Aluminum, Forward Assist & Dust Cover, Optimized Straight-Wall Profile, Single Large Feed Ramp, Type III Hardcoat Anodized Black
Barrel Length & Profile	7.5-Inch Medium Profile Barrel
Caliber	400 Legend (Winchester Straight-Wall)
Twist Rate	1:16 Twist Rate (Optimized for standard weight straight-wall hunting loads)
Barrel Material & Finish	4150 Chrome Moly Vanadium (CMV) Steel with QPQ Melonite Nitride Finish
Gas System Topology	Pistol Length Direct Impingement System with Low-Profile Gas Block
Handguard Matrix	6.5 Inch Slim Free Float Aluminum M-LOK Handguard Rail System
Muzzle Device	Standard A2 Big Bore Flash Hider, 5/8x24 Thread Pitch Configuration

Why Choose This Product?

Shorter barrels often introduce extreme pressure variables and strict cycling parameters when adapting straight-wall platforms to compact frames. Pro2A Tactical resolves this directly. By matching an expertly structured single-feed ramp receiver setup with a precision 7.5-inch Melonite barrel and a properly tuned gas profile, this upper drops right onto your lower receiver to supply heavy energy impact, space-saving maneuverability, and field reliability proudly built in the USA.

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