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Squeeze maximum ballistic velocity and extended precision out of your straight-walled firearm configuration with the PRO2A LEFT HAND 12.5" 350 Legend Upper Kit. Engineered natively for southpaw shooters, this kit solves the frustration of facial debris, harsh gas blowback, and crossing brass trajectories by utilizing a dedicated left-ejecting upper system. The 12.5-inch barrel length provides an excellent compromise between short-range maneuverability and optimized powder burn, turning your stripped lower receiver into a highly capable hunting pistol or short-barreled rifle setup.
| Upper Receiver | Forged 7075-T6 Aluminum, Enlarged M4 Feed Ramps (Dedicated Left-Hand Ejection Port Setup), Type III Hardcoat Anodized Black |
|---|---|
| Charging Handle | Standard Mil-Spec Charging Handle |
| Bolt Carrier Group | Milspec Left-Hand M16 Full Auto Profile, 350 Legend Caliber, QPQ Nitride/Melonite Treated, MPI Tested, 8620 Carrier with 9310 Steel Bolt |
| Barrel Length & Profile | 12.5-Inch Medium Profile |
| Caliber | 350 Legend Straight-Wall Cartridge [1] |
| Twist Rate | 1:16 Twist Rate (Highly optimized for stabilizing standard and heavy straight-wall hunting loads) [1] |
| Barrel Material | 4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish [1] |
| Gas System | Pistol Length Direct Impingement with Low-Profile Gas Block [1] |
| Handguard | 10-Inch Free Float Slim Profile M-LOK Handguard Rail System [1] |
| Muzzle Device | Standard A2 Flash Hider - 5/8-24 TPI - Enlarged to 35 Cal |
| Lower Parts Kit | Complete AR-15 Lower Parts Kit (LPK) including Pivot/Takedown Pins, Bolt Catch, Magazine Catch, Springs, Detents, Standard Pistol Grip, and Mil-Spec Fire Control Group (Trigger & Hammer Assembly) |
| Blade Assembly | High Density Adjustable Blade, Pistol Buffer Tube (Receiver Extension), Carbine Recoil Buffer, and Spring |
Moving up to a 12.5-inch barrel ensures cleaner powder efficiency and tighter consistency downrange compared to ultra-short setups, while remaining incredibly quick to aim and transition. Pro2A Tactical pairs this optimized velocity sweet spot with true mirrored left-handed operations and a comprehensive lower parts completion package, providing an all-in-one upgrade solution designed flawlessly for left-handed requirements.
| SKU | P2AL350LBW10PIS125-TK-KIT |
|---|---|
| Rifle Caliber | 350 Legend |
| Manufacturer | Pro2A Tactical |