PRO2A 18" 350 Legend Carbine Length Melonite M-LOK AR-15 Upper Kit

PRO2A 18" 350 Legend 1/16 Carbine Length Melonite M-LOK AR-15 Upper Kit

Product Description

The PRO2A 18" 350 Legend Carbine Length Melonite M-LOK AR-15 Upper Kit is a comprehensive assembly package engineered for builders wanting absolute performance out of the straight-walled 350 Legend cartridge. This all-in-one rifle completion kit pairs an authoritative 18-inch melonite treated barrel with a Mil-Spec forged receiver structure, a high-integrity full bolt carrier group, an optimized free-float handguard system, and all the foundational lower receiver parts and stock assembly elements required to turn your stripped lower into a field-ready platform.

Key Features

Complete Build Integration: Supplies everything necessary to assemble a high-accuracy, hard-hitting upper system, alongside a comprehensive lower completion package and stock system.
Straight-Walled Optimization: Custom chambered to flawless 350 Legend specifications, delivering excellent dwell-time ballistics perfect for medium-game hunting platforms.
Nitride/Melonite Structural Barrel: Built from premium chrome moly vanadium steel treated with liquid nitriding for outstanding rust defense and heat dissipation profiles.
All-Inclusive Stock System: Outfitted with an M4-style buttstock and a full 6-position receiver extension assembly to complete your rifle conversion cleanly.

Technical Specifications

Upper Receiver	Milspec 7075-T6 Forged Aluminum, Enlarged M4 Feed Ramps, Forward Assist & Dust Cover
Bolt Carrier Group & Handle	Full-Auto Profile, Nitride Treated, 9310 Bolt, MPI Tested. Standard Charging Handle
Barrel Length & Profile	18-Inch Medium Profile
Caliber	350 Legend
Twist Rate	1:16 Twist
Barrel Material	4150 Chrome Moly Vanadium Steel with QPQ Melonite Treatment
Gas System	Carbine Length Direct Impingement with Low-Profile Gas Block
Handguard	15-Inch Free Float Slim Profile M-LOK Rail System
Muzzle Device	A2 Flash Hider / Taper Crusher (5/8x24 Thread Pitch)
Lower Parts	Complete AR-15 Lower Parts Kit (LPK) including Pivot Pins, Bolt Catch, Magazine Catch, Springs, Detents, Standard Pistol Grip, and Polished Mil-Spec Fire Control Group (Trigger/Hammer Assembly)
Stock Assembly	M4 Carbine Buttstock with 6-Position Mil-Spec Buffer Tube (Receiver Extension), Carbine Recoil 3oz Buffer, and Chrome-Silicon Buffer Spring

Why Choose This Product?

This premium 18-inch kit removes the component guesswork out of setting up a legal hunting platform or dedicated straight-walled sporting rifle. By integrating a full premium lower parts kit and a heavy-duty adjustable stock assembly alongside the precision-fitted barrel system, this streamlined package equips home builders with a rugged, optimized field solution built for modern operational longevity.

More Information