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7.5" NR Side Charging 450 Bushmaster AR-15 Upper

PRO2A 7.5" 450 Bushmaster 1/24 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

7.5 inch 450 Bushmaster AR-15 Pistol | Lifetime Warranty

P2A PATRIOT 7.5" 450 Bushmaster 1/24 Pistol Length Melonite M-LOK Pistol

PRO2A 7.5" 450 Bushmaster 1/24 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can Kit

Special Price $599.99 $779.99
Availability:
In stock
SKU
P2A450BAX9PIS75CAN-TK-KIT
PRO2A 7.5" 450 Bushmaster 1/24 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can Kit

PRO2A 7.5" 450 Bushmaster 1/24 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can Kit

Product Description

Maximize your close-range stopping power, control intense muzzle concussion vectors, and streamline your entire custom assembly with a masterfully matched components ecosystem. The PRO2A 7.5" 450 Bushmaster Pistol Length Upper with Flash Can Kit delivers massive big-bore ballistic energy in a highly compact layout, bundling a complete tactical upper module and blast-forwarding flash can directly with a dedicated 450 Bushmaster bolt carrier group, a full internal lower parts kit, and an adjustable pistol stabilizing Blade buffer system assembly. Built around a premium forged 7075-T6 aluminum receiver engineered natively to manage massive big-bore case ejections, this master builder package centers on a rugged 7.5-inch medium profile barrel. The specialized 1:24 twist rifling guarantees reliable stabilization for heavy straight-walled ammunition. By delivering every critical internal and structural component in a single headspaced package, this turn-key kit completely removes assembly guesswork from your custom build project.

Key Features

  • Linear Muzzle Blast-Directing Flash Can: Slimline muzzle device sits recessed beneath the modular handguard, forcefully driving expanding gases, noise, and massive concussive energy downrange away from the shooter.
  • Comprehensive Master Builder Bundle: Packed fully with a completely headspaced upper receiver, a dedicated big-bore bolt carrier group, a premium lower parts kit, and a stabilizing Blade assembly to ensure a true turn-key workbench experience.
  • Premium 450 Bushmaster Bolt Carrier Group: Engineered from high-grade steel with optimized extractor, bolt face, and gas key dimensions to reliably handle heavy straight-walled cartridge pressures and mechanical cycling dynamics.
  • Complete Lower Parts Kit (LPK): Includes all standard tactical lower pins, detents, springs, an ergonomic pistol grip, and a crisp, mil-spec fire control group to fully finish out your lower receiver stripping requirements.
  • Kak Shockwave Blade Stabilizer Package: Outfitted with an impact-resistant polymer stabilizing fin, matching dimpled tube, heavy-duty spring, and a specialized weighted buffer to balance direct recoil forces smoothly.
  • Liquid Bath Nitride Protection: High-grade 4150 CMV steel components undergo full immersion QPQ Melonite processing, reinforcing structural surface hardness parameters against hot corrosive gases and prolonging bore precision.
  • 100% Sourced & Assembled in the USA: Proudly manufactured to rigorous aerospace tolerances in Georgia, ensuring high precision field deployment accuracy.

Technical Specifications

Caliber / Chambering450 Bushmaster (Big-Bore Straight-Walled Rifle Cartridge)
Upper Receiver HousingMilspec Forged 7075-T6 Aluminum, Single Large Feed Ramp, Forward Assist & Dust Cover, Type III Hardcoat Anodized (Ejection Port Enlarged for Big Bore Calibers)
Charging SystemStandard Mil-Spec Aluminum Charging Handle
Barrel Length / Steel7.5 Inches / 4150 Chrome Moly Vanadium (CMV) Structural Steel
Barrel Finish & ProfileQPQ Melonite / Black Nitride Finish (Internal & External) — Medium Profile
Twist Rate / Feed Ramps1:24 Twist / Precision Machined Single-Large M4 Feed Ramp Profile for Reliable Straight-Wall Case Feeding
Gas System MechanicsPistol Length Direct Impingement with a 0.750" Low-Profile Steel Gas Block
Bolt Carrier Group (BCG)Milspec Full Auto M16 Profile, Nitride Finish, 8620 Carrier, 9310 Bolt, MPI Tested
Lower Parts KitComplete AR-15 Lower Parts including Mil-Spec Trigger Group, Springs, Detents, Pins, and Pistol Grip
Stabilizer AssemblyHigh Density Adjustable Blade, Pistol Buffer Tube, Weighted Recoil Buffer, and Buffer Spring
Handguard System9-Inch Ultra-Lightweight Free-Float 6061-T6 Aluminum Modular M-LOK Rail with Continuous Top Picatinny Real Estate
Muzzle ConfigurationSlimline Micro Linear Flash Can Blast Shield / 5/8x24 Thread Pitch (Recessed under Handguard)
Manufacturing Origin100% Designed, Machined, and Assembled in the United States
Warranty CoverageProtected by Pro2A Tactical's Structural Lifetime Warranty

Why Choose This Product?

The 450 Bushmaster cartridge delivers massive downrange kinetic energy thresholds that far eclipse standard intermediate formats, serving as an absolute powerhouse for compact security setups and dense-cover hunting environments. By pairing this heavy-hitting caliber with an integrated linear flash can, full internal lower components, and a specialized heavy buffer recoil setup, Pro2A Tactical simplifies your precision rifle configuration project. It provides a complete, premium, ready-to-fire builder kit with strict quality control that delivers maximum muzzle compliance and exceptional field consistency right out of the box.

More Information
SKU P2A450BAX9PIS75CAN-TK-KIT
Barrel Length 7.5 inch
Rifle Caliber 450 Bushmaster
Manufacturer Pro2A Tactical
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