PRO2A LEFT HAND 14.5" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper Kit

Product Description

The PRO2A Left Hand 14.5" 5.56 NATO Mid Length Melonite M-LOK AR-15 Upper Kit is an all-inclusive conversion package precision-engineered for left-handed operators looking to build a highly maneuverable, flat-shooting tactical rifle assembly. Bridging the gap between standard carbines and shorter compact setups, this complete completion kit solves all component matching guesswork by pairing a true left-ejecting forged receiver and specialized left-handed bolt carrier group with a full lower completion parts kit and stock assembly, providing southpaw builders with everything required to turn a standard stripped lower receiver into a functional firearm.

Key Features

True Left-Hand Configuration: Mirrored left-side ejection port orientation safely redirects hot gas blowback and spent shell casings completely clear of a southpaw shooter's face and eyes.
Complete Build Integration: Bundles your high-accuracy intermediate upper assembly with a dedicated left-handed BCG, standard charging handle, complete small lower parts, and an adjustable stock completion system.
Optimal Mid-Length Gas Profile: Employs an intermediate gas port distance to drop cyclic pressures and bolt slide speed, resulting in significantly smoothed out recoil metrics and lower internal wear.
Premium Melonite Structural Defense: Heavy-duty 4150 CMV steel barrel is liquid nitrided to secure exceptional corrosion protection, easier cleaning, and an extended throat longevity profile.

Technical Specifications

Upper Receiver	Billet Aluminum, M4 Feed Ramps (Dedicated Left-Hand Ejection Port Setup)
Charging Handle	Standard Mil-Spec Charging Handle
Bolt Carrier Group	Milspec Left-Hand M16 Full Auto Profile, QPQ Nitride/Melonite Treated, MPI Tested
Barrel Length & Profile	14.5-Inch Medium Profile
Caliber	5.56 NATO (Safely accepts .223 Remington)
Twist Rate	1:7 Twist Rate (Highly optimized for standard 62gr to heavy 77gr match projectiles)
Barrel Material	4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish
Gas System	Mid Length Direct Impingement with Low-Profile Gas Block
Handguard	12-Inch Free Float Slim Profile M-LOK Handguard Rail System
Muzzle Device	A2 Flash Hider (1/2x28 Thread Pitch)
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

Why Choose This Product?

This premium 14.5-inch left-handed bundle provides builders with a seamless pathway to exceptional portability and intermediate handling without compromising user ergonomics. By integrating a dedicated left-handed bolt carrier group with full lower parts completion hardware and a soft-shooting mid-length recoil system, it eliminates the harsh face blowback and violent cycling common to shorter setups. This streamlined package ensures uniform field reliability, presenting an exceptional foundation for custom tactical rifle transformations.