PRO2A LEFT HAND 10.5" 5.56 NATO 1/7 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper

Product Overview

The PRO2A LEFT HAND 10.5" 5.56 NATO 1/7 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper brings a highly requested ergonomic solution to southpaw shooters seeking the ideal short-barreled rifle or pistol setup. Moving away from traditional rear-charging limitations, this complete upper utilizes a fluid, Non-Reciprocating (NR) left side-charging interface. True left-side ejection geometry ensures expanding exhaust gases and hot brass casings are thrown safely clear of your vision. Configured with a 10.5-inch barrel and a smooth-cycling carbine-length gas system, this upper receiver setup provides excellent maneuverability without sacrificing the cycling reliability needed for close-quarters tactics or duty tracking.

Key Features

True Left-Hand Architecture: Mirrored left-ejecting receiver profile paired with a matched left-hand bolt carrier group routes blinding carbon blowback and spent shells clear of left-dominant eyes.
Non-Reciprocating Side Charging: Fluid manual side charging handle remains completely stationary while the action cycles, giving you absolute structural clearance for optics without moving parts near your support hand.
Maneuverable 10.5-Inch Profile: Slashes overall length to optimize maneuvering speed in tight spaces, vehicular transport, or dense home-defense environments.
Smooth Carbine-Length Gas System: Calibrated with a low-profile gas block to supply excellent dwell time, lowering component wear and softening the overall recoil impulse.
Fast 1/7 Twist Rifling: Precision-rifled profile engineered to provide excellent rotational stabilization for popular heavy grain tactical and mil-spec projectiles (62gr, 69gr, and 77gr).
QPQ Melonite Hardened Finish: Premium Salt Bath Nitride finish shields internal rifling and external steel surfaces to provide excellent friction reduction and all-weather corrosion defense.

Technical Specifications

Receiver Orientation:	True Left-Handed / Left Ejection Port Architecture
Charging System:	Non-Reciprocating (NR) Left-Side Charging Geometry
Caliber / Chamber:	5.56 NATO (Fully Compatible with .223 Remington)
Barrel Length & Contour:	10.5 Inches Medium Contour Profile
Barrel Material:	4150 Chrome Moly Vanadium Steel - Made for us by Kinetic MFG
Twist Rate:	1:7 Twist
Barrel Coating Finish:	QPQ Melonite / Black Nitride Corrosion-Resistant Coating
Gas System Length:	Carbine-Length Gas System with 0.750" Low Profile Gas Block
Muzzle Device:	1/2x28 TPI A2 Flash Hider
Upper Receiver Type:	Gibbz Arms G4 Left Handed Billet Aluminum Side-Charging Architecture, Gen 2 Handle (Type III Hardcoat Anodized)
Handguard Profile:	10 Inch Slim Free-Float Modular M-LOK Rail System with Continuous Top Picatinny Rail
Manufacturing Origin:	100% Proudly Made in the USA

Why Choose This Product?

Traditional compact firearms compromise a southpaw operator's focus by spraying hot carbon exhaust and high-pressure casings directly across their path of vision. The PRO2A Left Hand 10.5" Side Charging Upper eliminates these operational hurdles completely. By modifying the manual interface point to a fluid left-side handle, you can charge your action naturally while remaining glued to your primary optical sight. Backed by heavy-duty 4150 steel construction, a high-durability Melonite barrel lining, and a smoother-cycling carbine gas system, this upper receiver assembly delivers clean, reliable, and uncompromised tactical performance straight out of the box.

SKU	P2ALNR556BW10CAR105-TK
Barrel Length	10.5 inch
Rifle Caliber	5.56 NATO
Manufacturer	Pro2A Tactical

PRO2A LEFT HAND 7.5" 223/5.56 1/7 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can