Colt’s Manufacturing M4 Upper 5.56/.223

$179.99

In stock

SKU: SP63528

Product Description

The durability, reliability and excellent build quality of Colt uppers will provide years of service you can count on. All Colt M4 Upper Receivers include a forward assist and dust cover. Machined with M4 Feed Ramps and laser engraved T-marks on the Picatinny rail. A thoroughbred upper receiver perfect for a new duty gun or clone build.

  • Platform: AR-15, M4, M16
  • Caliber: 5.56 Nato/.223 Rem
  • M4 Feed Ramps
  • Includes Forward Assist and Dust Cover

Specifications

Overview

Brand

Technical Information

Caliber 5.56 NATO / .223 Remington
Color / Pattern
Firearm Compatibility

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit www.P65Warnings.ca.gov

Customer Reviews

Based on 1 review
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J
Joseph D.
Mil Spec Upper

Picked this receiver as part of a Block II rifle build. Don't buy expecting pristine finish.... true to Colt form it does show some character, even for a brand new part. Mine had dot matrix cage code and square forge mark. Maybe not a museum piece but it's definitely quality, would buy again.