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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.
| Upper Receiver | Gibbz Arms G4 Billet Aluminum, Non-Reciprocating Left-Side Charging Configuration, Right-Hand Ejection Port, Type III Hardcoat Anodized Black |
|---|---|
| Charging Handle | Left-Side Non-Reciprocating Charging Handle (Stays static when firing) |
| Barrel Length & Profile | 5-Inch Medium Profile, Suppressor Ready (Exposed Muzzle Threads Setup) |
| Caliber | 7.62x39mm |
| Twist Rate | 1:10 Twist Rate (Highly optimized for standard weight steel case and brass factory ammunition profiles) |
| Barrel Material | 4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish |
| Gas System | Micro Length Direct Impingement with Low-Profile Gas Block |
| Handguard | 4-Inch Free Float Slim Profile M-LOK Handguard Rail System |
| Muzzle Device | Standard A2 Flash Hider, 5/8x24 TPI |
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.
| SKU | P2ANRX39AX4MIC5-HT |
|---|---|
| Barrel Length | 5 inch |
| Rifle Caliber | 7.62x39 |
| Manufacturer | Pro2A Tactical |