PRO2A 20" 308 Win 1/10 Rifle Length NR Side Charging Stainless Premium M-LOK AR-10 Upper

Product Overview

The PRO2A 20" 308 Win 1/10 Rifle Length NR Side Charging Stainless Premium M-LOK AR-15 Upper introduces uncompromised long-range mastery and unmatched manual leverage to the heavy-frame AR-10 platform. Purpose-built around an elite 20-inch 416R Stainless Steel barrel, this complete upper receiver assembly is meticulously optimized to extract maximum velocity, flat trajectories, and sub-MOA precision from the powerful .308 Winchester cartridge. Re-engineering the standard layout, it features a fluid **Left-Side Non-Reciprocating (NR) side-charging handle** that eliminates awkward rear charging access under large optics. Calibrated with a smooth, rifle-length gas network and a sleek free-float M-LOK rail, this premium upper configuration delivers the ultimate modular package for distance precision, hunting, and tactical applications.

Key Features

Non-Reciprocating Side Charging Handle: The left-side charging handle stays stationary during live-fire cycles, granting massive manual leverage over a heavy AR-10 spring system without passing moving components near support-hand layouts.
Premium 416R Stainless Steel Barrel: Match-grade stainless profile is precision-honed to resist aggressive heat cycling, ensuring exceptional barrel stress-relief and outstanding shot-to-shot consistency.
Precision 1/10 Twist Rate: The ideal internal rifling pitch optimized out-of-the-box to flawlessly stabilize standard and heavy-grain precision match bullets like 168gr and 175gr weights.
Ultra-Smooth Rifle Length Gas Network: Meticulously port-balanced to extend dwell time, flattening out the harsh recoil curves common to large-frame .308 builds and reducing internal component wear.
Heavy-Frame Billet DPMS Architecture: Precision-machined from premium aluminum billets and finished in Type III hardcoat anodizing, ensuring total structural alignment and cross-compatibility with DPMS-pattern lower receivers.
Slim Free-Float M-LOK Handguard: A lightweight 15-inch rail layout keeps hand pressure entirely isolated from barrel harmonics while presenting a top Picatinny axis for mounting optics.

Technical Specifications

Platform Compatibility:	AR-10 / LR-308 Pattern (DPMS Low-Profile Top Rail Alignment)
Charging Mechanism:	Left-Side Non-Reciprocating (NR) Side Charger Architecture
Caliber / Chamber:	.308 Win (Winchester) / 7.62x51mm NATO
Barrel Length / Material:	20 Inches, Premium 416R Stainless Steel Medium Profile, Bead Blasted Finish
Twist Rate Finish:	1:10 Twist
Gas System Specs:	Rifle-Length Gas System with a 0.750" Low-Profile Gas Block Layout
Muzzle Thread Pattern:	5/8x24 TPI Competition Muzzle Brake
Upper Receiver Type:	Gibbz Arms G10 Non Reciprocating Side Charging Billet Aluminum Receiver with Gen 2 Handle, Enlarged M4 Feed Ramps, Type III Hardcoat Anodized Black
Handguard Type:	15 Inch DPMS Low Slim Free-Float M-LOK Rail System with a Top Rail Real Estate
Manufacturing Origin:	100% Made in the USA

Why Choose This Product?

Building a high-performance distance rifle on a large-frame AR-10 setup traditionally presents massive manual handling bottlenecks—namely managing heavy bolt-carrier group spring tensions underneath massive long-range scopes using standard charging latches. PRO2A bypasses this mechanical compromise. Moving the operational control to an ergonomic, static left-side charging mechanism allows you to chamber a round or clear malfunctions with immense leverage, all without pulling your eye from the glass or breaking your cheek weld. Merged with a full 20-inch 416R stainless barrel built to milk out maximum bullet velocity and extreme accuracy, this upper provides precision shooters an out-of-the-box, heavy-hitting assembly that operates smoothly across the board.