Cobalt Kinetics CK Pro Lite 5.56 7.5" Pistol Upper - Black

The Cobalt Kinetics CK Pro Lite 5.56 upper receiver assembly transforms standard AR platforms into precision short-barreled configurations. This 7.5-inch barreled upper delivers compact maneuverability without sacrificing terminal performance in close-quarters applications.

What Makes This Different

Cobalt Kinetics engineers this upper with their proprietary gas system optimization that reduces felt recoil by 15% compared to standard carbine-length systems. The lightweight profile barrel maintains sub-2 MOA accuracy while shedding unnecessary weight. Advanced metallurgy and precision manufacturing ensure consistent performance across temperature extremes from -40°F to 140°F.

Key Features

• 7.5-inch 4150 chrome moly vanadium steel barrel with 1:7 twist rate
• Proprietary low-profile gas block with adjustable gas system
• M-LOK compatible handguard with full-length top rail
• Mil-spec upper receiver machined from 7075-T6 aluminum
• Compatible with standard AR-15 lower receivers and BCG assemblies
• Nitride finish on barrel and gas components for corrosion resistance
• Pre-installed A2 flash hider with 1/2x28 threading

Field testing demonstrates reliable cycling with 55-grain through 77-grain projectiles across major ammunition manufacturers. The optimized gas port diameter ensures consistent extraction and ejection patterns in both suppressed and unsuppressed configurations. Law enforcement agencies report excellent performance in vehicle operations and confined space entries where standard 16-inch barrels prove unwieldy.

Technical Specs

• Overall Length: 13.5 inches
• Barrel Length: 7.5 inches
• Weight: 2.8 pounds (without BCG)
• Twist Rate: 1:7 inches
• Gas System: Pistol length
• Thread Pitch: 1/2x28 TPI
• Finish: Type III Hard Coat Anodized (Charcoal)
• Made in USA

This upper assembly represents proven engineering applied to modern tactical requirements. The charcoal anodized finish provides enhanced durability while maintaining the professional appearance demanded by serious users.