PRO2A 10.5" 450 Bushmaster 1/24 Carbine Length Melonite M-LOK AR-15 Upper with Flash Can Kit

Product Overview

The PRO2A 10.5" 450 Bushmaster 1/24 Carbine Length Melonite M-LOK AR-15 Upper with Flash Can Kit delivers bone-crushing straight-walled ballistic performance packed into a highly maneuverable master builder package. This all-inclusive premium assembly kit provides everything required to convert a standard stripped lower receiver into a devastating big-bore close-quarters powerhouse. Engineered around a premium 10.5-inch Melonite-treated heavy barrel, the system manages raw muzzle pressure using an integrated project-forward linear Flash Can device tucked cleanly beneath the handguard. This master bundle ships complete with a caliber-matched bolt carrier group, a tailored lower parts group, and a heavy-duty stabilizing assembly to guarantee immediate operational deployment.

Key Features

Complete Master Builder Kit: Streamlines parts acquisition by bundling a pre-assembled upper receiver, a caliber-matched bolt carrier group, a complete lower parts kit, and a matching stabilizing brace assembly.
Linear Flash Can Muzzle Device: Tames aggressive short-barrel muzzle blast by forcing sound pressure, gas expansion, and massive acoustic shock waves directly downrange and away from the operator.
Compact 10.5-Inch Profile: Yields exceptional structural handling speeds and light, fast-transition indexing in close-quarters hunting structures, vehicles, or thick brush.
Optimized 1/24 Twist Rate: Precision-rifled land profile engineered explicitly to rotationally stabilize heavy .450 straight-wall projectiles for flat, reliable short-range trajectories.
QPQ Melonite Surface Hardening: Premium Salt Bath Nitride finish shields internal rifling and external steel surfaces against corrosive moisture, rapid carbon fouling, and intense pressure scoring.
Free-Float Slim Handguard: Enhances intrinsic accuracy by isolating barrel harmonics, providing an extended rail system to partially tuck the flash can for a clean, streamlined look while maximizing M-LOK accessory space.

Technical Specifications

Charging System:	Standard Mil-Spec Rear Charging Layout
Muzzle Device:	5/8-24 Slimline Linear Flash Can (Blast Forwarder Device) Tucked Under Rail
Caliber / Chamber:	450 Bushmaster (Straight-Wall Regulation Compliant)
Barrel Length & Contour:	10.5 Inches Heavy Profile
Barrel Material:	4150 Chrome Moly Vanadium Steel
Twist Rate:	1:24 Twist
Barrel Coating Finish:	QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining
Gas System Length:	Carbine-Length Gas System
Upper Receiver Type:	7075-T6 Forged Aluminum Flat Top Receiver with Enlarged Ejection Port, Single Large Feed Ramp (Type III Hardcoat Anodized)
Bolt Carrier Group (BCG) & Handle:	M16 Profile, Heavy-Duty Carrier, 450 Bushmaster Caliber Bolt, Properly Staked Gas Key. Standard Milspec Charging Handle
Lower Parts Kit (LPK):	Complete AR-15 Lower Parts Kit (Includes standard polished fire control group, trigger, hammer, pins, springs, and polymer pistol grip)
Blade Assembly:	High-Strength Polymer Stabilizing Blade Brace, Pistol Buffer Tube, Carbine Recoil Spring, and Standard 3oz Buffer
Handguard Profile:	12 Inch Slim Free-Float Modular M-LOK Rail Layout (Extended layout to partially tuck Flash Can)
Manufacturing Origin:	100% Proudly Made in the USA

Why Choose This Product?

Unmatched Straight-Wall Knockdown Power: The .450 Bushmaster cartridge delivers devastating big-bore kinetic energy that effortlessly drops large game. It is ideal for deer and hog hunters operating under strict straight-wall legislative limits.Tames Intense Big-Bore Concussion: A short 10.5-inch barrel firing a massive .450 caliber projectile produces an aggressive muzzle blast. The integrated project-forward linear flash can completely redirects that acoustic shockwave and flash downrange, protecting your hearing and facial field.Flawless Big-Bore Ejection Cycles: Standard AR-15 upper receivers fail to clear large .450 casings, causing immediate jamming. This upper features a custom factory-enlarged ejection port designed explicitly to guarantee reliable, high-volume extraction clearances.