PRO2A 11.5" 5.56 NATO Carbine Length Upper with Flash Can

PRO2A 11.5" 5.56 NATO 1/7 Carbine Length Melonite M-LOK AR-15 Upper with Flash Can

Product Overview

The PRO2A 11.5" 5.56 NATO 1/7 Carbine Length Melonite M-LOK AR-15 Upper with Flash Can delivers definitive close-quarters operational performance combined with rugged structural endurance. This upper assembly transforms the traditional rifle architecture into a fast-handling tactical pistol or SBR platform. To successfully manage the aggressive muzzle blast inherent to shorter tactical barrels, the assembly features an integrated project-forward linear Flash Can muzzle device tucked cleanly inside the handguard. This system strikes the perfect intermediate balance between velocity retention, reliable cycling, and direct operator comfort.

Key Features

Linear Flash Can Muzzle Device: Tames severe short-barrel muzzle blast by forcing sound pressure, thermal expansion, and aggressive concussive shock waves directly downrange and completely away from the operator.
Maneuverable 11.5-Inch Profile: Yields superior structural handling speeds and fast transition indexing in tight spaces while preserving essential caliber ballistic velocity.
Versatile 1/7 Twist Rate: Precision-rifled land profile engineered explicitly to rotationally stabilize a vast array of common 5.56mm projectiles, including heavy mil-spec or defensive grain variations.
QPQ Melonite Surface Hardening: Premium Salt Bath Nitride treatment shields internal rifling and external steel surfaces against corrosive moisture, rapid thermal wear, and mechanical friction.
Reliable Carbine-Length Gas Layout: Smooth direct-impingement cycling dynamics optimized to ensure maximum dwell time and smooth operation under demanding firing sequences.
Free-Float Slim M-LOK Handguard: Enhances intrinsic accuracy by isolating barrel harmonics, providing an extended layout to partially tuck the flash can for a streamlined aesthetic while supplying full modular attachment real estate.

Technical Specifications

Muzzle Device:	1/2x28 Slimline Linear Flash Can (Blast Forwarder Device) Tucked Under Rail
Caliber / Chamber:	5.56 NATO (Accepts .223 Remington reliably)
Barrel Length & Contour:	11.5 Inches Medium Profile
Barrel Material:	4150 Chrome Moly Vanadium (CMV) Steel
Twist Rate:	1:7 Twist
Barrel Coating Finish:	QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining
Gas System Length:	Carbine-Length Gas System with 0.750" Low Profile Gas Block
Upper Receiver Type:	7075-T6 Forged Aluminum M4 Flat Top Receiver, M4 Feed Ramps, Forward Assist & Port Cover (Type III Hardcoat Anodized)
Handguard Profile:	12 Inch Slim Free-Float Modular M-LOK Rail (Extended to partially tuck Flash Can)
Manufacturing Origin:	100% Proudly Made in the USA

Why Choose This Product?

Short-barreled 5.56 platforms are highly maneuverable, but they often present significant downsides—namely reduced gas system dwell time and punishing concussive muzzle blast to the shooter. The PRO2A 11.5-inch upper directly counters these limitations. Opting for an 11.5-inch barrel over a common 10.5-inch variant dramatically increases system operational reliability, stretches gas dwell cycle safety margins, and mitigates premature parts wear.

Furthermore, by pairing this barrel length with a linear flash can, the side concussion and blast are redirected forward away from the operator. This design allows for more comfortable operation and cleaner sight tracking during target practice or sport shooting. Finished with a durable QPQ Melonite coating and constructed out of high-grade components, this upper offers a reliable option for custom rifle builders looking for longevity and performance.

More Information

More Information
SKU	P2A556AX12CAR115CAN-WLA
Barrel Length	11.5 inch
Rifle Caliber	5.56 NATO
Manufacturer	Pro2A Tactical

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