Pro2A 5.5" 40 S&W Pistol Caliber Melonite M-LOK Upper with Flash Can

PRO2A 5.5" 40 S&W 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can

Description

The Pro2A Tactical 5.5-inch .40 S&W Pistol Caliber Complete Upper Receiver assembly featuring an integrated linear Flash Can packs excellent, hard-hitting performance into a hyper-compact footprint. Carefully hand-assembled and quality verified in Georgia, this straight blowback system is optimized to push muzzle blast and loud concussive forces forward away from the operator. With a premium Melonite-finished barrel partially shrouded by a slim, free-floating M-LOK handguard, it provides a seamless tucked look and outstanding ergonomics for personal defense weapons, vehicle storage, or home security setups.

Key Features

Forward Blast Redirection: Outfitted with a slimline aluminum linear Flash Can muzzle device that channels noise, flash, and concussive pressure downrange away from the shooter.
Ultra-Compact Footprint: Packs a hard-hitting .40 S&W caliber punch into an agile 5.5-inch barrel layout engineered for lightning-fast tracking in close-quarters environments.
Straight Blowback Simplicity: Built entirely without gas blocks or gas tubes, dropping complex wear points to guarantee steady feeding and extraction cycles.
Aggressive Tucked Aesthetics: The linear flash can sits partially shrouded beneath the free-floating M-LOK rail system, maximizing rail accessory space while establishing a flush profile.

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	5.5-Inch Medium Profile
Caliber	.40 S&W (Smith & Wesson)
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	7 Inch Free Float Slim Profile M-LOK Rail System with Integrated Top Picatinny Rail
Muzzle Thread & Device	9/16x24 Thread Pitch with Standard Slim Line Aluminum Flash Can

Why Choose This Product?

Building an ultra-short pistol caliber AR platform often results in severe side-concussion and unrefined muzzle profiles due to traditional open brakes or flash hiders. The Pro2A 5.5" .40 S&W Upper with Flash Can solves this layout challenge elegantly by choosing a dedicated linear device that changes the direction of concussive force completely. Mated to a robust billet receiver featuring an enhanced pistol caliber feed cone, it guarantees seamless geometry for wide ammo compatibility from flat-nose training rounds to premium defensive hollow points. It is the ultimate choice for shooters wanting a professional, tucked appearance without compromising on raw short-range stopping power.

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