The Colt Conversion Kit contains the complete upper receiver group, including a charging handle, bolt carrier group, and back up sight. Conversion Kits are available in both the standard upper receiver with handguard configuration and Monolithic 1-piece upper receiver with free-floating barrel configuration. All barrels feature a 1/7 right hand twist. Now you can convert any Colt rifle to the most state of the art configurations.
|Type||Complete Gas Impingement|
|Series||Upper Conversion Kit|
|Caliber||223 remington556 nato|
|Barrel Length Range||16.00" to 17.99"|
Determined at checkout.