PRO2A 16" 7.62x39 1/10 Carbine Length Melonite M-LOK AR-15 Upper Kit

Product Overview

The PRO2A 16" 7.62x39 1/10 Carbine Length Melonite M-LOK AR-15 Upper Kit merges the heavy hard-hitting hardiness of the iconic 7.62x39mm cartridge with the modular accuracy of the modern AR-15 layout. Built around a precision 16-inch barrel with an optimal 1/10 twist profile, this comprehensive assembly kit is specifically engineered to feed, extract, and fire reliably with standard ammunition profiles. To eliminate legacy platform cycling anomalies, the setup features a specialized, port-tuned carbine-length gas network alongside an enhanced bolt carrier group containing an extended firing pin to cleanly ignite hard steel primers. Packed cleanly with a matching nitride BCG, complete lower parts kit, and an adjustable M4-style stock assembly, this kit yields everything required to take a stripped lower receiver to a finished, high-performance rifle build.

Key Features

Enhanced Bolt Carrier Group Included: True 7.62x39 nitride bolt carrier assembly equipped with an enhanced firing pin configuration to deliver 100% reliable ignition on hard military-grade primers.
Complete Build Completion Parts: Ships packed with a complete Mil-Spec lower parts assembly (pins, springs, fire control components, and grip) and a standard six-position collapsible stock bundle.
Precision 1/10 Twist Rifling: Tailored micro-groove internal layout engineered to maximize stabilization and terminal accuracy for standard 122gr to 124gr ammunition options.
Durable QPQ Melonite Armour Treatment: Liquid salt bath nitride protection hardens internal and external barrel paths, delivering elite corrosion resistance and keeping cleaning routines incredibly fast.
Optimized Carbine Length Gas Network: Explicitly port-calibrated to deliver a balanced cycling sequence, controlling overall pressures and mitigating snaps on the internal drive layouts.
Slim Free-Float M-LOK Handguard: Secures optimal barrel performance while supplying an expansive, continuous top Picatinny rail and clear side mounting slots for accessories.

Technical Specifications

Caliber / Chamber:	7.62x39mm (Optimized for AR-15 Platforms)
Barrel Length / Material:	16 Inches, 4150 Chrome Moly Vanadium Steel Layout
Twist Rate Finish:	1:10 Twist Medium Profile with QPQ Melonite Nitride Finish
Gas System Specs:	Carbine-Length Gas System with a 0.750" Low-Profile Gas Block Layout
Muzzle Device:	5/8x24 TPI (Includes Mil-Spec A2 Flash Hider)
Bolt Carrier Group (BCG):	7.62x39 Nitride Carrier Assembly with Enhanced Firing Pin & 9310 Bolt (MPI Tested)
Lower Parts Kit:	Complete Mil-Spec Assembly (Full Fire Control Group, Pins, Springs, and Pistol Grip)
Stock Assembly:	6-Position M4 Collapsible Stock, Buffer Tube, Receiver Extension, Action Spring, and Buffer Weight Layout
Upper Receiver Type:	Standard Mil-Spec Forged 7075-T6 Aluminum, Forward Assist & Port Cover (Type III Hardcoat Anodized Layout)
Handguard Type:	12 Inch Slim Free-Float M-LOK Rail System with Continuous Top Rail Real Estate
Manufacturing Origin:	100% Made in the USA

Why Choose This Product?

Running the heavy 7.62x39 cartridge out of a traditional AR-15 system historically caused ignition failures and extraction jams due to deep, recessed primers and unique taper dynamics. PRO2A targets and clears these roadblocks out of the gate by engineering tailored tolerances directly into the drive group. Shifting onto our enhanced firing pin depth layout allows you to shoot budget-friendly surplus rounds cleanly without misfires, while the Melonite-treated barrel handles intense heat with elite resilience. For builders seeking a highly economical hard-hitting utility or target package without hunting down scattered individual assembly blocks, this total integration package lets you finish your rifle setup confidently with zero tuning stress.