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Engineered for consistency
-Rubberized non-slip outer surface
These shells feature a lighter payload
Profile: SOCOM
AERO COMPLETE UPPER 5.56 20" A2 BLK SIG Triggers Engineered for consistencyThe Aero Precision Complete Upper in 5. 56 NATO with a 20" A2 profile barrel offers a classic configuration for your AR15 build. This upper features a rifle length gas system for smooth operation and reduced recoil. The A2 profile barrel provides excellent accuracy and heat dissipation for sustained fire. Includes a complete bolt carrier group and charging handle, making it ready to pair with any mil spec lower receiver. Features Specs: Caliber: 5. 56