This is a new custom built AR-15 5.56 NATO upper with Yankee Hill Chromed-lined steel barrel. What you see is what you get! Yankee Hill upper receiver with Yankee Hill Tactical Four Rail Free Float Forearm. YHM barrel in 1-7" twist. We double check headspace assembly. This barrel will stabilize all 223 or 5.56 NATO bullets from the lightest up to 95 grain. Our customers are reporting that upper assemblies using these barrels are consistently shooting sub 1½ moa! DOES NOT include bolt and carrier, or charging handle. These are optional and for sale under Accessories!  

Machined, 7075, T6 aluminum, upper receiver, with a 5" long flattop rail, accepts Picatinny-style rings and your tactical accessories. Finished with mil-spec, hard-coat, black anodizing for protection from scratches, mars, and abrasion. Includes case deflector, port cover, and forward assist.

We are a FFL licensed manufacturer, but this upper can be shipped to an individual – no need to transfer through FFL. You are responsible to know the laws in your area!

Yankee Hill Flattop Upper
Yankee Hill 1 in 7" twist 16.5” Chrome lined Steel Barrel

Yankee Hill Serrated Flash-hider
Yankee Hill Four Rail Free-float forearm

Four Rail Gas Block

Stainless Steel Gas Tube

Feel free to ask all the question you have. We take the time to answer them all!