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14.5 inch 5.56 NATO SC Upper Kit | Pinned & Welded

PRO2A 14.5" 5.56 NATO 1/7 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can Kit - Pinned & Welded

5 inch AR-15 NR Side Charging 5.56 NATO M-LOK Melonite Upper Suppressor Ready | Pro2A Tactical

PRO2A 5" 5.56 NATO 1/5 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper - Suppressor Ready

PRO2A 5" 7.62x39 1/10 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper - Suppressor Ready

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Special Price $609.99 $739.99
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SKU
P2ANRX39AX4MIC5-HT
PRO2A 5" 7.62x39 1/10 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper - Suppressor Ready

PRO2A 5" 7.62x39 1/10 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper - Suppressor Ready

Product Description

Pack the immense kinetic signature of the legendary 7.62x39mm cartridge into an ultra-compact footprint optimized with modern manual manipulation controls. The PRO2A 5" 7.62x39 Micro Length Non-Reciprocating (NR) Side Charging Upper introduces a high-speed charging layout that relocates weapon staging to a left-side lever, remaining static during firing cycles to preserve mechanical safety. Featuring a hard-hitting 5-inch 4150 CMV medium profile barrel, this assembly relies on a fine-tuned micro-length direct impingement gas system to cycle efficiently. An abbreviated 4-inch free-float slim profile handguard exposes the muzzle threads completely, supplying zero rail-to-silencer clearance issues when pairing this platform with direct-thread or quick-attach suppressors.

Key Features

  • ntuitively positioned on the left side of the receiver, this mechanism lets you cycle the bolt while keeping your hand secure on the main pistol grip, staying completely fixed during live cycling.
  • An ultra-short 4-inch free-float rail stops clear of the muzzle threads, granting wide-open clearance to secure suppressors or custom muzzle systems directly onto the barrel without handguard interference.
  • Combines sub-compact handling dynamics with heavy rifle-caliber velocities to secure severe close-quarters target fragmentation.
  • Liquid nitride bath treatment hardens the 4150 Chrome Moly Vanadium core inside and out to maximize heat endurance, throat lifespan, and bad weather defense.
  • Assembled from high-grade aircraft billet and forged components, complete with an enhanced firing pin layout to reliably smash harder steel-cased primers.

Technical Specifications

Upper ReceiverGibbz Arms G4 Billet Aluminum, Non-Reciprocating Left-Side Charging Configuration, Right-Hand Ejection Port, Type III Hardcoat Anodized Black
Charging HandleLeft-Side Non-Reciprocating Charging Handle (Stays static when firing)
Barrel Length & Profile5-Inch Medium Profile, Suppressor Ready (Exposed Muzzle Threads Setup)
Caliber7.62x39mm
Twist Rate1:10 Twist Rate (Highly optimized for standard weight steel case and brass factory ammunition profiles)
Barrel Material4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish
Gas SystemMicro Length Direct Impingement with Low-Profile Gas Block
Handguard4-Inch Free Float Slim Profile M-LOK Handguard Rail System
Muzzle DeviceStandard A2 Flash Hider, 5/8x24 TPI

Why Choose This Product?

Building a micro 7.62x39mm platform often creates structural clearance headaches and hard primer ignition problems. Pro2A Tactical fixes these structural hurdles completely. By matching a static, non-reciprocating side-charging upper action with an enhanced firing pin and an exposed muzzle thread architecture, this American-made assembly delivers smooth ergonomic handling and heavy downrange energy that is compatible with any standard AR-15 lower receiver.

More Information
SKU P2ANRX39AX4MIC5-HT
Barrel Length 5 inch
Rifle Caliber 7.62x39
Manufacturer Pro2A Tactical
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