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12.5 inch 6.8 SPC II Upper | LEFT HANDED | Made To Perform

PRO2A LEFT HAND 12.5" 6.8 SPC II 1/10 Carbine Length Melonite M-LOK AR-15 Upper with Flash Can

20 inch LEFT HANDED AR-15 6.8 SPC II M-LOK Nitride Upper

PRO2A LEFT HAND 20" 6.8 SPC II 1/11 Rifle Length Melonite M-LOK AR-15 Upper

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

Special Price $349.99 $589.99
Availability:
In stock
SKU
P2AL68SPCGFS15MID18-TK
PRO2A Left Hand 18" 6.8 SPC II 1/11 Mid Length Melonite M-LOK AR-15 Upper

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

Product Description

Maximize your velocity scaling, terminal energy retention, and overall shooting comfort with the PRO2A LEFT HAND 18" 6.8 SPC II Mid Length Upper Assembly. Explicitly engineered from the ground up to solve the persistent issues of right-hand ejection gas blowback and crossing casing fields for southpaw shooters, this specialized platform features a dedicated left-ejecting setup. Built around a premium forged 7075-T6 aluminum receiver block, this platform features an 18-inch 4150 CMV medium profile barrel. The 1:11 twist rate and Spec II chambering combine to safely handle standard factory hunting loads with minimized pressure margins, while a smooth direct impingement mid-length gas setup ensures a soft, uniform cycling stroke. Encased inside a rigid 15-inch free-float aluminum handguard, this upper drops seamlessly onto your standard lower receiver block to complete an elite long-range tactical or medium-game hunting build.

Key Features

  • True Left-Hand Ejection Architecture: Dedicated mirrored port layout channels spent casings, visual debris, and harsh gas blowback cleanly out to the left side and completely away from a left-handed operator's face.
  • Optimized 18-Inch Muzzle Energies: Elongated barrel structure burns intermediate hunting powders completely, yielding a distinct velocity premium over shorter configurations to flatten downrange trajectories.
  • Proven SPEC II Performance Chambering: Configured natively to manage the higher pressures of modern 6.8mm hunting variants safely with predictable headspace metrics.
  • Resilient Free-Float M-LOK Architecture: Premium 15-inch slim profile aluminum rail isolates the barrel from external handling pressure vectors, ensuring continuous point-of-impact accuracy.
  • Liquid Bath Nitride Hardening: The 4150 Chrome Moly Vanadium steel core features full interior and exterior QPQ Melonite coating to offer absolute weatherproofing and prolonged bore precision.

Technical Specifications

Upper ReceiverBillet Aluminum, M4 Feed Ramps, (Dedicated Left-Hand Ejection Port Setup), Type III Hardcoat Anodized Black
Barrel Length & Profile18-Inch Medium Profile
Caliber6.8 SPC II (SPEC II Chamber)
Twist Rate1:11 Twist Rate (Highly optimized for standard hunting loads and reduced internal friction parameters)
Barrel Material4150 Chrome Moly Vanadium Steel with QPQ Melonite Nitride Finish
Gas SystemMid Length Direct Impingement with Low-Profile Gas Block
Handguard15-Inch Free Float Slim Profile M-LOK Handguard Rail System
Muzzle DeviceStandard A2 Flash Hider, 5/8-24 TPI

Why Choose This Product?

Running intermediate rifle calibers out of right-handed setups frequently forces significant hot carbon debris back into a southpaw shooter's face, especially over extended string counts. Pro2A Tactical eliminates this hazard entirely. By matching true left-handed mechanical operations with an elongated 18-inch Spec II core, this American-made upper receiver delivers flat paths, custom tolerances, and superior field consistency tailored entirely for left-handed requirements.

More Information
SKU P2AL68SPCGFS15MID18-TK
Barrel Length 18 inch
Rifle Caliber 6.8 SPC II
Manufacturer Pro2A Tactical
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