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7.5 inch 350 LEGEND Melonite Upper Kit | Lifetime Warranty

PRO2A 7.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper Kit

7.5 inch 350 Legend NR Side Charging Upper Kit

PRO2A 7.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can Kit

PRO2A 7.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can Kit

Rating:
87 % of 100
Special Price $479.99 $649.99
Availability:
In stock
SKU
P2A350LAX9PIS75CAN-TK-KIT
PRO2A 7.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can Kit

PRO2A 7.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can Kit

Product Description

Deploy heavy-hitting straight-wall power from an ultra-maneuverable footprint with the complete PRO2A 7.5" 350 Legend Pistol Length Melonite M-LOK AR-15 Upper Kit with Flash Can. Purpose-built to optimize the fast expansion profiles of straight-wall cartridges out of shortened configurations, this master build package delivers relentless performance perfect for defensive platforms and tight-clearance hunting binds. The integrated slimline linear flash can successfully captures severe micro-barrel concussion lines, pushing raw expanding gases directly downrange away from the operator. As an all-in-one building matrix, this package comes completely populated with a premium M16 profile bolt carrier group, a standard charging handle, a full lower parts kit, and a complete rear stabilizing brace blade assembly—providing every required internal component needed to finalize your stripped lower receiver build.

Key Features

  • All-Inclusive Master Build Kit: Bundles the complete barreled upper receiver and linear flash can with a premium bolt carrier group, charging handle, full lower parts kit, and rear receiver blade assembly hardware.
  • Straight-Wall Micro Dominance: Specifically optimized for the 350 Legend cartridge to supply hard-hitting kinetic energy from an incredibly agile modern sporting platform setup.
  • Forward-Directed Flash Can: The integrated linear muzzle can routes aggressive short-barrel expansion blast straight down the firing line, drastically elevating operator comfort.
  • Precision 1:16 Twist Profile: Perfectly tailored twist configuration provides exceptional stability and precision across standard commercial hunting grain weights.
  • QPQ Melonite Extreme Armor: Inside barrel bore, chamber throat, and exterior walls are fully liquid nitrocarburized to maximize surface hardness, improve thermal dissipation boundaries, and resist extreme environmental degradation.
  • Recessed M-LOK Handguard Layout: A continuous top Picatinny rail aligns flawlessly with a 9-inch lightweight free-floating M-LOK handguard that beautifully shrouds and recesses the flash can muzzle profile for a clean, streamlined "tucked" aesthetic.

Technical Specifications

Caliber / Chambering350 Legend (Straight-Walled Rifle Cartridge)
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 Ramps1:16 Inches Right-Hand Twist / Engineered 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
Upper Receiver Housing7075-T6 Forged Aluminum, Mil-Spec M4 Profile, Type III Hardcoat Anodized
Handguard System9-Inch Ultra-Lightweight Free-Float 6061-T6 Aluminum Modular M-LOK Rail System (Recessed Shroud Layout)
Muzzle ConfigurationSlimline Linear Flash Can (Concussive Diffuser Shroud) / 5/8x24 TPI Thread Pitch
Bolt Carrier Group (BCG)M16 Profile Full-Auto Capable, Case Hardened 8620 Steel Carrier, 9310 Steel Bolt (MPI Tested) with 350 Legend Extractor Geometry, Advanced Nitride Finish
Charging HandleStandard Mil-Spec AR-15 Charging Handle, Machined 7075-T6 Structural Aluminum
Lower Parts Kit (LPK)Complete AR-15 Lower Parts Kit (Standard Milspec ELG Trigger / Fire Control Group, Pistol Grip, Detents, Springs, Pins, and Safety Selector)
Brace & Buffer AssemblyPremium Stabilizing Brace Blade Assembly, Pistol/Carbine Diameter Receiver Extension Buffer Tube, Recoil Buffer, and High-Tensile Buffer Spring
Manufacturing Origin100% Designed, Machined, and Assembled in the United States
Warranty ProtectionBacked by Pro2A Tactical's Structural Lifetime Warranty Plan

Why Choose This Product?

The PRO2A 7.5" 350 Legend Upper Kit with Flash Can removes the historical troubleshooting frustration of building a reliable straight-wall pistol platform by providing a perfectly headspaced and balanced mechanical system right out of the box. Sourcing standalone components for straight-walled calibers often creates headspacing risks or feeding failures. This configuration handles those engineering limits flawlessly by utilizing a single large M4 feed ramp configuration built explicitly to chamber straight-wall ammunition smoothly. When combined with a custom linear flash can that drives severe short-barrel muzzle blast forward and a robust rear stabilizing blade structure, it transforms a typically loud footprint into a clean, flat-shooting defensive environment. Fabricated completely in America to strict engineering tolerances and protected by a comprehensive Lifetime Structural Warranty, it stands out as an elite choice for your next platform expansion.

More Information
SKU P2A350LAX9PIS75CAN-TK-KIT
Barrel Length 7.5 inch
Rifle Caliber 350 Legend
Manufacturer Pro2A Tactical
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