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.
- Caliber: 223 Remington/5.56 NATO - Barrel Length: 16.1" - Twist: 1:7 - Barrel Finish: Black - Receiver Finish: Black - Handguard Finish: Black
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