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Reviews & Ratings for Stern Defense AR-15 16.1 inch Assembled 9mm Upper Receiver w/15 inch MLOK Rail — 4 reviews

(4 reviews)
Stern Defense AR-15 16.1 inch Assembled 9mm Upper Receiver w/15 inch MLOK Rail
Stern Defense AR-15 16.1 inch Assembled 9mm Upper Receiver w/15 inch MLOK Rail
$544.45 $534.45 Save $10.00
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Most Helpful Positive Review Heavy but gets the job done. Can use MEAN Endomags instead of glock/colt adapter!
The barrel itself is quite heavy and it is noticeable vs a regular 22.3 upper. However with that being said it does need a good cleaning before you take it out to the range as mine had a ton of gunk in the feed ramps and in the barrel. Other then that it feeds flawlessly from MEAN Endomag pmag conversions and has about a 1-2moa deviation at 100 yards. Being 9mm I would say that is acceptable.
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Excellent kit

by Tom, Verified Owner from OH, United States Written on January 1, 2026
This conversion works. I only have about 70 rounds through it but it functions great. The only thing I added was a Macon Armory dead blow buffer for 9mm.
Would recommend: Yes
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Great 9mm upper

by Knighthawk, Verified Owner from MO, United States Written on November 21, 2024
This was a great price a complete 9mm upper. Stern Defense builds a quality company and Optics Planet delivers, at a good price.
Would recommend: Yes
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Great 9mm Upper

by GMan, from MI, United States Written on March 13, 2019
Building a 9mm based AR platform rifle. As usual, I looked to Optics Planet for my parts. Very pleased with this upper, better than advertised. Fit, finish and performance excellent. Would highly recommend this brand. You won’t be disappointed.
Would recommend: Yes
1 of 1 found the following review helpful.
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