SALE: Colt 14.5″ 6921 M4 flat-top complete upper, used – SOLD

(more pictures below)

Colt 14.5″ M4 flat-top 6921/0920 used complete upper.

Features a black flat-top upper receiver with forward asst., shell deflector, removable carryhandle with A2 sights, M4 14.5″ 1/7 barrel, flashhider, bayonet lug, M4 double heat-shield handguards, complete upper with full-auto bolt carrier and all Colt.

This upper is a used factory assembled upper receiver fired approx. 1500-2000rds, with a throat erosion of 4.0. There are marks on the barrel from a side sling swivel and a Surefire flashhider/supressor adapter (Part #CAM4FA556), both of which were removed before we received this upper.

Markings; upper receiver 4, C AF, ejection port proofs, carryhandle A-9, barrel C MP 5.56 NATO 1/7, 8/98, O stamp, front sight F, bolt carrier C, bolt MPNC with line under the NC.
Stock #1142702

We have added some pictures taken outside to better represent the anodizing of this upper than our photo booth lights are able to do.

Price $575     Please call or email to order – 608 558-6201 or

Note: This upper can be purchased without the carryhandle – please deduct $50.
The Surefire flashhider/suppressor adapter (Part #CAM4FA556) can be purchased for $59.

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