PRO2A Left Hand 14.5" 5.56 NATO NR Side Charging Mid Length Melonite M-LOK Upper with Flash Can

PRO2A LEFT HAND 14.5" 5.56 NATO 1/7 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

Elevate your build with the ultimate tactical duty upper configured specifically for southpaw shooters. The PRO2A LEFT HAND 14.5" 5.56 NATO Non-Reciprocating (NR) Side Charging Upper combines standard-setting mid-length gas dynamics with advanced modern ergonomics and muzzle blast management. Built with a premium Melonite-treated 4150 CMV barrel housed in a true left-ejecting side-charging receiver system and topped with a blast-directing extended flash can, this premium 100% American-made assembly delivers ultra-smooth operation, rapid manual manipulation, and complete debris protection for an uncompromised left-handed shooting experience.

Key Features

True Left-Handed Ejection Geometry: Purpose-built mirror-image receiver architecture and a left-facing ejection port keep hot spent brass and high-pressure carbon blowback arcing safely away from left-handed shooters' eyes and field of view.
Non-Reciprocating (NR) Side Charger: Ergonomic left-side charging handle stays completely stationary while the weapon fires, eliminating a standard charging handle's face-blowback while enabling seamless clearance and loading actions without breaking your cheek weld.
Blast-Directing Extended Flash Can: Directs muzzle blast, concussive forces, linear noise, and expanding gases straight downrange away from the shooter—perfect for defensive applications and tight indoor range stalls.
Premium Mid-Length Gas System: Precision-tuned gas dynamics deliver an optimized gas pressure curve, yielding a significantly softer recoil impulse, minimized muzzle rise, and reduced internal system wear compared to standard carbine setups.
Melonite/Nitride Barrel Hardening: Fully treated with an advanced Salt Bath QPQ Melonite finish inside the bore and across the exterior. This premium barrier extends service life against high-velocity gas erosion and locks out moisture.
Versatile 1:7 Twist Rate: Precision button-rifled with a 1:7 twist configuration engineered to stabilize a vast array of 5.56x45mm NATO projectiles, performing exceptionally with standard 55gr loads up to heavy-grain 77gr match ammunition.
Slim Profile Free-Float M-LOK Rail: Machined from high-strength aluminum, the lightweight handguard isolates barrel vibrations to preserve uniform mechanical accuracy while providing a continuous top rail and extensive M-LOK modular spacing.

Technical Specifications

Upper Receiver	Gibbz Arms LEFT HANDED G4 Non Reciprocating Side Charging Billet Aluminum Receiver with Gen 2 Handle, M4 Feed Ramps, Type III Hardcoat Anodized Blac
Barrel Length & Steel	14.5 Inch Profile, 4150 Chrome Moly Vanadium Steel, Medium Contour, Melonite Treated
Caliber	5.56x45mm NATO (Fully accepts .223 Remington ammunition)
Twist Rate	1:7 Twist (Precision Button Rifled)
Gas Operating Block	Mid-Length System, Low-Profile Gas Block Machined from 4140 Steel, Stainless Steel Gas Tube
Muzzle Device	Slimline Blast-Forwarding Flash Can, 1/2x28 Thread Pitch
Handguard	15 Inch Slim Profile Free-Float M-LOK Rail, Full-Length Top Picatinny Rail, Machined from 6061-T6 Aluminum
Manufacturing Origin	100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty

Why Buy This Product?

The PRO2A LEFT HAND 14.5" 5.56 NATO Side Charging Melonite Upper with Flash Can directly resolves the most persistent problems facing left-handed rifleman: toxic rear gas face-blowback, awkward malfunctions controls, side-concussive muzzle blast, and excessive cyclic snap on shorter systems. Standard rear-charging right-handed uppers vent localized carbon gas directly into your eyes when running aggressively. Relocating weapon manipulation to a stationary side-charging handle seals the traditional rear port block, redirecting internal gas pressure completely down and away from the shooter. Combined with our true mirrored left-eject port, your visual workspace remains entirely clear and uninterrupted.

Furthermore, selecting a 14.5-inch barrel paired with a mid-length gas operating block strikes the perfect professional middle ground, maximizing dwell times to lower internal operating velocity. This gives you a weapon system that shoots flatter, cycles cleaner, and returns to your point-of-aim instantly. By integrating a pre-installed extended Flash Can kit, the concussive pressure wave typical of intermediate barrel configurations is pushed completely forward down the range line, preserving your situational hearing and optimizing comfort during intensive indoor training sessions. Backed completely by Pro2A Tactical's signature Lifetime Factory Warranty and manufactured entirely in the USA, this upper receiver optimizes your AR-15 build into a rugged, high-performance asset tailored perfectly to your natural shooting posture.

More Information

More Information
SKU	P2ALNR223AX15CAR145CAN-TK-LEFT
Barrel Length	14.5 inch
Rifle Caliber	5.56 NATO
Manufacturer	Pro2A Tactical

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