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Yankee Hill Machine Billet Mod2 Stripped Upper Receiver For AR15s YHM-110-B2
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Most Helpful Positive Review Well made billet upper that looks cool too
Upper fit the lower perfectly. Like the cool design of it makes the rifle stand out from others. Inside of upper is nice and smooth with some sort of slick finish making it cycle smoothly. Great billet upper for a great price.
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Enhanced bolt catch will not fit into milled pocket on upper reciver

by Jughead, from ME, United States Written on April 25, 2021
Wish the finish was as nice as the Seekins lower. It's an ambi lower bolt catch release, so having a standard bolt catch size isn't terrible. Other than that the upper receiver is beautiful,this thing is beefy in all the right areas. Planned on a cerakote finish from the beginning would definitely recommend.
Pros:
  • Thickness
Cons:
  • Enhanced bolt catch is to big for milled out area
Would recommend: Yes
Was it helpful to you? Yes | No

Yankee Hill billet receiver

by Buckaroo, from MT, United States Written on March 30, 2018
Really happy with this billet receiver. Well made and fits my billet lower perfect. Has dry lube inside and machining is excellent. Will buy again. Need a few more to ceracote and this will be as good as any of the top ARs out thete. Thanks optic Planet.
Would recommend: Yes
Was it helpful to you? Yes | No

Nice upper

by Jim, from WA, United States Written on March 11, 2017
Good quality you would expect. Love the detail and finish is nice.
If your looking for an upper to start your next build, this is the one. Don't hesitate to buy.
Matches up to my Spikes lower and fit is perfect.
Would recommend: Yes
Was it helpful to you? Yes | No

Another review complaining about fit and finish..

by Chris, Verified Owner from AZ, United States Written on February 18, 2017
This is a really unique looking upper which is the only reason why I kept it. It took 3 tries till I received one that didn't look like a blemished model. First two came with chipped sections along with areas that were scruffed. Third one came with scruffs but I didn't care at this point.... I can see the scruffs coming from transport since the packaging left much to be desired but the chips had to be missed by YHM QC.

Aside from that, it fit perfectly on my spikes lower, no issue and looks awesome. If you can get it on sale, go for it. I don't recommend paying full msrp for it though with what quality ive seen so far
Would recommend: Yes
Was it helpful to you? Yes | No

Decent billet,

by SupaSavage, from NC, United States Written on November 5, 2016
It's a ok upper, nice price but I think the finish is just ok. I'm not using it on the build I bought it for because it don't fit with my seekins lower. The lower finish won't matter if you are going to get a different finish put on it.
Would recommend: Yes
0 of 1 found the following review helpful.
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Nicest looking billet upper

by Bart, from KY, United States Written on October 14, 2016
Super nice Billet upper. Quality is excellent, and you can't beat the looks. I've purchased different billet uppers before, and although the build quality seems to be the same on most billet uppers, you don't get the looks or the detail that you do with this upper.
Would recommend: Yes
0 of 1 found the following review helpful.
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Great upper!

by Pat, from NC, United States Written on July 20, 2016
Fit and finish are perfect! The design is awesome and will make for a great looking, unique build. Magpul B.A.D. lever will not work with it but I'm hoping that the Phase 5 will work with it. It aligned perfectly to my Spikes Tactical billet lower receiver.
Would recommend: Yes
1 of 1 found the following review helpful.
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Poor Parkerizing

by Udawg, Verified Owner from WA, United States Written on July 7, 2016
I was extremely unhappy with the finish of this upper. Yankee Hill has a good reputation but this upper was either part of their blemish program or someone really missed the QC that day.

The only reason I am not returning this is I decided to Cerakote the rifle but I decided this because of the poor finish on the parkerizing.

I do recommend this product because it is a gun part and gun parts will get beat up. However if you are looking make a safe queen AR, then be aware you might get poor finishing and might want to consider cerakoting your rifle.
Would recommend: Yes
Was it helpful to you? Yes | No

Yankee Hill Machine Billet Mod2 Stripped Upper Receiver For AR15s

by Dave, from TN, United States Written on July 6, 2016
This is the second one I've purchased. Built an AR 300 Blackout with the first one, Cerakoted everything FDE. Bought the second to build a 223 upper to match. Yankee Hill makes top quality parts. These Billet uppers are top notch and great looking at a great price.
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.