PRO2A LEFT HAND 20" 6mm ARC 1/7.5 Rifle Length NR Side Charging Melonite M-LOK AR-15 Upper Kit

Name: PRO2A LEFT HAND 20" 6mm ARC 1/7.5 Rifle Length NR Side Charging Melonite M-LOK AR-15 Upper Kit
Brand: 939.99
SKU: P2ALNR6ARCAX15RIF20-TK-KIT
Price: 939.99 USD
Availability: InStock

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Pro2A Left Hand 20" 6mm ARC NR Side Charging Rifle Length Upper Kit

PRO2A LEFT HAND 20" 6mm ARC 1/7.5 Rifle Length NR Side Charging Melonite M-LOK AR-15 Upper Kit

Description

The Pro2A Tactical Left-Handed 20-inch 6mm ARC Non-Reciprocating (NR) Side Charging Complete Upper Kit delivers ultimate ergonomic management and long-range ballistic efficiency for southpaw operators. Assembled by hand and field-tested in Georgia, this premier conversion kit integrates a true left-ejecting receiver profile with an advanced, static side-charging mechanism. Complete with a velocity-maximizing 20-inch barrel, rifle-length gas system, full lower parts kit, and matching stock assembly, it provides a comprehensive precision rifle solution that isolates you from gas blowback and flying brass.

Key Features

Left-Handed Non-Reciprocating Architecture: Features a dedicated left-eject billet receiver paired with a side-mounted charging handle that remains static while firing, preventing optical interference and redirecting gases away from the shooter's face.
Comprehensive Turnkey Package: Streamlines your entire build by providing a factory-assembled side-charging upper group, matched left-hand nitride BCG, complete lower parts kit (LPK) with fire control group, and a 6-position stock assembly.
Elite 6mm ARC Performance: Achieves optimal velocity potential out of the 20-inch barrel profile, ensuring flat trajectories and high wind resistance that rivals short-action bolt platforms.
Optimized Twist & Gas curve: Spun with a fast 1/7.5 twist rate to reliably stabilize heavy, high-BC match ammo, managed smoothly by an extended rifle-length direct impingement gas setup.

Technical Specifications

Upper Receiver	Patented Gibbz Arms G4 Billet Aluminum Non-Reciprocating Side Charging Upper Receiver, Left Hand Ejection, M4 Feed Ramps (Type III Hardcoat Anodized)
Charging System	Right-Side Non-Reciprocating Charging System (Static Handle Design) for Left-Eject Configuration
Barrel Length & Profile	20-Inch Medium Profile
Caliber	6mm ARC (Advanced Rifle Cartridge)
Twist Rate	1:7.5 Twist
Barrel Material	4150 Chrome Moly Vanadium Steel with Premium Corrosion-Resistant Melonite Finish
Gas System Length	Rifle Length Direct Impingement with 0.750 Low-Profile Gas Block
Handguard	15 Inch Free Float Slim Profile M-LOK Rail System with Continuous Top Picatinny Rail
Muzzle Thread & Device	5/8x24 Thread Pitch with Standard A2 Flash Hider
Bolt Carrier Group	Milspec Left Hand M16 Full Auto Profile, 8620 Steel Carrier, Nitride Treated, MPI Tested, Correct Type II 9310 Steel Bolt
Lower Parts Kit	Complete AR-15 LPK with Pins, Springs, Detents, Grip, and Polished Mil-Spec Fire Control Group
Stock Assembly	Mil-Spec 6-Position Buffer Tube Assembly, Carbine Buffer, Spring, Castle Nut, Endplate, and Adjustable M4 Stock

Why Choose This Product?

Finding a high-performance precision rifle shouldn't mean compromising on left-handed ergonomics or struggling to track parts compatibility across multiple retailers. The Pro2A Left Hand 20" 6mm ARC NR Side Charging Upper Kit completely unifies your core components from the factory, combining a perfectly headspaced left-hand bolt configuration with an ultra-durable Melonite-treated barrel. The non-reciprocating side-charging setup yields critical clearance for massive precision optics while maximizing operational leverage from prone or benched shooting stances. It is the definitive drop-in upgrade for southpaw shooters demanding absolute mechanical rigidity and long-range ballistic superiority.

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