Are you at least 18 years old?
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.
| Caliber / Chambering | 350 Legend (Straight-Walled Rifle Cartridge) |
|---|---|
| Barrel Length / Steel | 7.5 Inches / 4150 Chrome Moly Vanadium (CMV) Structural Steel |
| Barrel Finish & Profile | QPQ Melonite / Black Nitride Finish (Internal & External) — Medium Profile |
| Twist Rate / Feed Ramps | 1:16 Inches Right-Hand Twist / Engineered Single-Large M4 Feed Ramp Profile for Reliable Straight-Wall Case Feeding |
| Gas System Mechanics | Pistol Length Direct Impingement with a 0.750" Low-Profile Steel Gas Block |
| Upper Receiver Housing | 7075-T6 Forged Aluminum, Mil-Spec M4 Profile, Type III Hardcoat Anodized |
| Handguard System | 9-Inch Ultra-Lightweight Free-Float 6061-T6 Aluminum Modular M-LOK Rail System (Recessed Shroud Layout) |
| Muzzle Configuration | Slimline 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 Handle | Standard 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 Assembly | Premium Stabilizing Brace Blade Assembly, Pistol/Carbine Diameter Receiver Extension Buffer Tube, Recoil Buffer, and High-Tensile Buffer Spring |
| Manufacturing Origin | 100% Designed, Machined, and Assembled in the United States |
| Warranty Protection | Backed by Pro2A Tactical's Structural Lifetime Warranty Plan |
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.
| SKU | P2A350LAX9PIS75CAN-TK-KIT |
|---|---|
| Barrel Length | 7.5 inch |
| Rifle Caliber | 350 Legend |
| Manufacturer | Pro2A Tactical |