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12.5 inch 350 Legend Side Charging Upper Kit | Pro2A Tactical

PRO2A 12.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper Kit

10.5 inch 12.7x42 (50 Beowulf) Upper Kit | Pro2a Tactical

PRO2A 10.5" 12.7x42 (50 Beowulf) 1/20 Carbine Length Melonite M-LOK AR-15 Upper Kit

PRO2A 12.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can Kit

Rating:
93 % of 100
Special Price $819.99 $1,109.99
Availability:
In stock
SKU
P2ANR350LGFS15PIS125CAN-FAX-KIT
PRO2A 12.5" 350 Legend Pistol Length NR Side Charging Upper Kit with Flash Can

PRO2A 12.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can Kit

Assemble the definitive straight-walled hunting pistol or short-barreled rifle configuration with the PRO2A 12.5" 350 Legend Pistol Length NR Side Charging Upper Kit with Flash Can. This premium un-assembled component group includes matching, high-tolerance parts explicitly selected to integrate elite manual ergonomics with absolute concussion control. Combining a 12.5-inch Melonite-treated barrel, a non-reciprocating left-side charging handle, an integrated linear flash can, an all-inclusive lower parts kit, and a stabilizing pistol blade brace assembly, this system offers a seamless workbench build focused on close-quarters authority.

Key Features

  • Linear Blast-Forward Flash Can: Directs aggressive side-concussion and unburnt powder forward and away from the shooter—essential for short-barreled straight-walled platforms.
  • Ergonomic Non-Reciprocating Side Charging: Shifting the controls from the traditional rear charging handle to a stationary left-side mechanism keeps your view clear and mechanics fluid under optics.
  • All-In-One Complete Build Bundle: Eliminates tracking down independent accessories by packing your side-charging upper components, flash can, small lower internal parts, and stabilizing blade system in a single box.
  • Robust Stabilizing Blade Configuration: Includes an ergonomic polymer pistol blade brace designed to provide reliable leverage, recoil management, and repeatable indexing.
  • Melonite (QPQ) Hardened Coating: Establishes a diamond-hard, low-friction internal bore layer that resists early abrasive wear, actively fights off moisture, and simplifies carbon cleaning.
  • Full Mil-Spec Lower Parts Kit: Every internal small part is machined out of heat-treated domestic steels to guarantee a crisp, predictable trigger break and continuous functional life.

Technical Product Specifications

  • Caliber / Chamber: .350 Legend (Straight-Walled Cartridge Profile)
  • Barrel Length: 12.5 Inches
  • Gas System Length: Pistol-Length (calibrated for optimized dwell time and reliable extraction metrics)
  • Barrel Twist Rate: 1/16 Twist (optimized to cleanly stabilize 145 grain to 180 grain projectiles)
  • Barrel Finish & Treatment: 4150 Chrome Moly Vanadium with an advanced slick Melonite / Black Nitride QPQ layer
  • Upper Receiver: Gibbz Arms G4 Billet Aluminum Non-Reciprocating (NR) Left-Side Charging / Right-Side Ejection architecture
  • Handguard Structure: 15 Inch Free-Float Slim M-LOK Handguard featuring a matching continuous top Picatinny rail
  • Muzzle Device: 5/8-24 TPI Slimline Flash Can (tucked neatly beneath the rail to route expansion energy downrange)
  • Gas Block Diameter: 0.750" Low-Profile Gas Block and Stainless Steel Pistol Gas Tube
  • Lower Parts Kit (LPK): Complete Mil-Spec lower assembly components (Trigger, Hammer, Disconnector, Safety Selector, Springs, Pins, Bolt Catch, Magazine Release, and Pistol Grip)
  • Pistol Blade Assembly: High-density polymer Stabilizing Blade Brace, Pistol Buffer Tube, Carbine Buffer Spring, Standard Buffer weight, Castle Nut, and Receiver End Plate
  • Platform Compatibility: Standard AR-15 Mil-Spec lower structures (requires 350 Legend specific magazines or followers)
  • Manufacturing Sourcing: 100% Sourced and Made in the USA from raw domestic materials

Why Choose the Pro2A Tactical 12.5" 350 Legend NR Flash Can Kit?

Elite Big-Bore Ergonomics with Concussion Control

The .350 Legend cartridge is an exceptional straight-walled hunting round, but cycling it in a short 12.5-inch pistol barrel can create a substantial concussive footprint. Traditional rear-charging handle configurations can be clumsy under large hunting scopes, and standard muzzle blasts can disrupt the shooting blind. This left-side non-reciprocating side-charging platform lets you charge or clear the gun smoothly from a natural position, while the integrated forward flash can pushes all muzzle noise and gases downrange away from your ears.

Seamless Assembly Continuity and Bench Consistency

Pro2A Tactical doesn't build kits with unbranded or unknown generic parts. Every single component—from the trigger assembly and internal detents to the buffer springs and stabilizing blade brace—is curated from top-tier domestic manufacturers, assuring strict dimensional uniformity so your custom straight-walled project fits together flawlessly on the workbench.

True American Craftsmanship and Support

Every element in this kit is proudly manufactured right here in the USA. Hand-curated and supported by our domestic customer care team out of Cumming, Georgia, Pro2A Tactical ensures your custom firearm build is founded on a bedrock of premium, long-term reliability.

More Information
SKU P2ANR350LGFS15PIS125CAN-FAX-KIT
Rifle Caliber 350 Legend
Manufacturer Pro2A Tactical
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