Colt 6921 with KAC MRE

This upper receiver uses a new production Colt 6921 complete upper, featuring a 14.5" chrome lined barrel with 1:7" twist, M4 barrel contour, bolt carrier, charging handle, A2 style flash hider. We installed a Knights Armament Free Float RAS (Rail Adapter System) featuring full length mil-spec M1913 Picatinny rails at the 12-, 3-, 6-, and 9 o'clock positions, making it compatible with any number of rail-mounted accessories. The rail free floats the barrel, allowing for consistent barrel harmonics upon firing, and thus increased accuracy potential. It extends past the front sight base, providing additional rail space for the mounting of accessories. Includes three KAC 11 Rib Rail Panels.

Colt 6921 Specs:

• Model: LE6921CK
• UPC: 098289035325
• 5.56 NATO
• 14.5" chrome lined barrel
• 1:7" twist
• M4 contour barrel
• Bolt carrier
• Charging handle
• A2 Style flash hider

KAC MRE FF RAS Specs:

• Manufacturer Part #: 21166-2
• Model: 556 MRE Free Float RAS
• UPC: 819064016861