Colt M4 flat-top 6920 M4 16″ complete upper minus bolt & carrier and side sling swivel, used.
Features a black flat-top upper receiver with forward asst., charging handle, shell deflector, port door, removable carryhandle with A2 sights, 16″ 1/7 barrel, A2 flashhider, A2 front sight post, bayonet lug, M4 double heat-shield handguards, original Colt factory upper receiver, all Colt.
This upper is a used factory assembled upper receiver fired approx. 300-400rds based on minor wear points. Throat erosion gauges 1.75 which is as new. There is minor barrel staining/heat marks under the handguards and at the M4 notch.
Markings; upper receiver M4, C keyhole, rail numbers, carryhandle cardinal, barrel C MP 5.56 NATO 1/7, 05/07, O stamp, white dot, front sight F.
Price $495 Please call or email to order – 608 558-6201 or email@example.com