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14.5 inch LEFT HANDED AR-15 NR Side Charging 5.56 NATO Melonite MLOK Upper w/CAN

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

18" LEFT HAND NR Side Charging 6.8 SPC II Upper

PRO2A LEFT HAND 18" 6.8 SPC II 1/11 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper

PRO2A LEFT HAND 5" 300 Blackout 1/5 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper - Suppressor Ready

Special Price $609.99 $804.99
Availability:
In stock
SKU
P2ALNR300BLKAX4MIC5-HT
PRO2A Left Hand 5" 300 Blackout 1/5 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper - Suppressor Ready

PRO2A LEFT HAND 5" 300 Blackout 1/5 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper - Suppressor Ready

Product Description

Shrink your footprint to the absolute minimum while elevating left-handed tactical controls and manual operation speed. The PRO2A LEFT HAND 5" 300 Blackout Micro Length Non-Reciprocating (NR) Side Charging Upper delivers uncompromised southpaw ergonomics on an ultra-compact Personal Defense Weapon (PDW) blueprint. By pairing a true left-ejecting mechanical action with a side-charging mechanism that remains completely static while firing, this assembly routes gas pressure and spent casings safely down the left side, entirely removing facial blowback. The 5-inch 4150 CMV barrel features an ultra-fast 1:5 twist rate to maximize rotational stabilization for heavy subsonic projectile trajectories, completely preventing keyholing out of a micro platform. An abbreviated 4-inch free-float slim profile handguard exposes the muzzle threads completely, ensuring clean structural real estate to directly mount quick-attach or direct-thread suppressors without rail-to-silencer interference.

Key Features

  • True Left-Hand Ejection: Dedicated mirrored port arrangement completely eliminates cross-body brass throwing and concussive facial blowback for southpaw operators.
  • Non-Reciprocating Side Charging Action: Side charging mechanism permits fast weapon charging while keeping your eyes fixed on target and remains entirely stationary when live cycling.
  • Suppressor-Ready Clearance: 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.
  • Ultra-Fast 1:5 Twist Performance: Precision-engineered rotational torque stabilizes standard and heavy-grain subsonic 300 Blackout projectiles cleanly out of a micro-length barrel profile.
  • Premium QPQ Melonite Protection: Liquid bath nitride treatment hardens the 4150 Chrome Moly Vanadium core inside and out to maximize heat endurance, throat lifespan, and bad weather defense.

Technical Specifications

Upper ReceiverGibbz Arms G4 Billet Aluminum, True Left-Hand Configuration, Non-Reciprocating Right-Side Charging, Dedicated Left-Hand Ejection Port Setup, Type III Hardcoat Anodized Black
Charging HandleRight-Side Non-Reciprocating Charging Handle (Stays static when firing)
Barrel Length & Profile5-Inch Medium Profile, Suppressor Ready (Exposed Muzzle Threads Setup)
Caliber.300 AAC Blackout (Safely accepts both Subsonic and Supersonic factory loads)
Twist Rate1:5 Twist Rate (Highly optimized for heavy-grain projectiles and ultra-short barrel stabilization)
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, 5/8-24 TPI

Why Choose This Product?

The 300 Blackout cartridge is inherently optimized for shorter barrel configurations, turning an ultra-compact footprint into a hard-hitting defensive tool. By combining this micro performance with a true mirrored left-ejection, non-reciprocating side-charging upper action, a fast 1:5 twist profile, and a short 4-inch M-LOK handguard that avoids rail-suppressor interference, Pro2A Tactical yields an uncompromised custom weapon package that drops seamlessly onto your existing AR-15 lower receiver.

More Information
SKU P2ALNR300BLKAX4MIC5-HT
Barrel Length 5 inch
Rifle Caliber 300 Blackout
Manufacturer Pro2A Tactical
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