Colt gray M4 flat-top receiver. New from 1997 production upper.
Features a gray flat-top upper receiver with M4 feedramps, shell deflector, port door and forward asst., all Colt.
Markings; upper receiver C AF, M4
Price $199 Please call or email to order – 608 558-6201 or email@example.com
Optional accessory: Charging handle $28