AR-15 5.56 UPPER RECEIVER

AR-15 5.56 UPPER RECEIVER

Add the Colt legend of reliability to your rifle or build with these complete upper receivers from Colt. The LE6920CK and LE6921CK are based off the combat proven M4 upper receiver and features 1/7 RH twist in a 16.1” barrel on the LE6920CK and 14.5” barrel in the LE6921CK. All upper receivers include a charging handle, bolt carrier group, and back up sights. All NFA rules apply.

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