PRO2A 10.5" 45 ACP Upper Kit with Flash Can | PRO2A Tactical

PRO2A 10.5" 45 ACP 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit

Product Overview

The PRO2A 10.5" 45 ACP 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit delivers heavy-hitting, large-bore dominance in an optimized, consolidated assembly package. Chambered in the legendary .45 ACP cartridge, this complete pistol caliber carbine (PCC) build kit features a balanced 10.5-inch premium Melonite-treated barrel to extract extra velocity over standard micro pistols. To significantly tame the raw sound pressure and side concussion inherent to close-quarters firearms, this layout features a project-forward linear Flash Can muzzle device tucked cleanly beneath the free-float M-LOK handguard. Stripping away the technical configuration guesswork, this all-in-one bundle arrives complete with a caliber-matched direct-blowback Bolt Carrier Group (BCG), a full Mil-Spec lower parts kit, and an adjustable pistol stabilizing blade assembly.

Key Features

Linear Flash Can Muzzle Device: Tames large-bore concussion by forcing high-pressure sound energy, thermal gases, and visual flash signature straight downrange and away from the operator.
All-In-One Component Consolidation: Packages a premium direct-blowback BCG, full mil-spec lower parts kit, charging handle, and an adjustable pistol blade extension system under a single part number.
Optimized 10.5-Inch Profile: Yields distinct velocity retention advantages for heavy .45 ACP ammunition while keeping the platform short, agile, and remarkably quick to maneuver.
Precision 1/16 Twist Rifling: Specifically engineered to perfectly stabilize common 230-grain ball ammunition and premium large-bore subsonic defensive projectiles.
QPQ Melonite Barrel Treatment: High-end Salt Bath Nitride finish hardens the internal bore and outer barrel structures against surface wear, rapid carbon scaling, and field environmental humidity.
Slim Free-Float M-LOK Handguard: Enhances structural rigidity and isolates barrel harmonics, providing an expansive top Picatinny rail and clear M-LOK slots (extended layout to shroud the Flash Can).

Technical Specifications

Operating System:	Direct Blowback
Bolt Carrier Group (BCG):	Premium Pistol Caliber Blowback BCG, Heavy Duty Profile, Nitride/Melonite Finished, Caliber-Matched Bolt Face
Lower Parts Kit (LPK):	Complete AR-15 Mil-Spec Lower Parts Kit (Includes Trigger, Hammer, Disconnector, Pins, Detents, Springs, and Standard Grip)
Stabilizing Assembly:	Pistol Stabilizing Blade Assembly complete with Pistol Buffer Tube, Recoil Spring, and Dedicated Heavy Buffer
Muzzle Device:	5/8-24 TPI Slimline Linear Flash Can (Blast Forwarder Device) Tucked Under Rail
Caliber / Chamber:	45 ACP
Barrel Length & Contour:	10.5 Inches Medium Contour
Barrel Material:	4150 Chrome Moly Vanadium Steel
Twist Rate:	1:16 Twist Ratio Profile
Barrel Finish:	QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining
Upper Receiver Type:	Mil-Spec Billet Aluminum Slick-Side Receiver Upper, PCC Sized Ejection Port (Type III Hardcoat Anodized)
Handguard Profile:	12 Inch Slim Free-Float Modular M-LOK Handguard Layout (Extended to partially tuck Flash Can)
Manufacturing Origin:	100% Proudly Made in the USA

Why Choose This Product?

Building a hard-hitting large-bore AR pistol from scratch often leads to a web of part compatibility headaches, timing struggles, and multi-retailer tracking issues. Sourcing heavy caliber blowback bolts, specific buffers, and lower parts independently can invite technical friction. The PRO2A 10.5" 45 ACP Upper Kit eliminates this barrier completely. By grouping a premium, pre-tested upper receiver directly with a caliber-matched blowback bolt carrier group, full lower internals, and a stabilizing pistol blade setup, this bundle delivers a verified out-of-the-box build experience with zero assembly guesswork.Beyond its sheer convenience, this setup resolves a major tactical roadblock. Firing massive .45 ACP cartridges out of shorter platforms typically vents a punishing concussive signature laterally, making shooting highly uncomfortable at indoor ranges or out in tight defensive blocks. This layout integrates an advanced project-forward linear flash can to force concussive pressure straight downrange away from your ears. Backed by heavy-duty 4150 steel construction, an extended 10.5-inch velocity advantage, and an ultra-durable Melonite finish, this comprehensive package gives you a clean-cycling, soft-concussion large-bore powerhouse straight out of the box.

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