Reviews & Ratings for Stag Arms AR-15 A3 Flattop Upper Receiver — 13 reviews — Page 1

I have four of these. The fit and finish is perfect. The machining and measurements are very precise with no wiggle on multiple different lowers. The 7075 aluminum is much tougher than other 6061 slick side uppers on the market made by KAK, KMT, WMD guns, DeltaTT, Davidson and the only other comparable 7075 lefty upper is made by PSA which is $30 more expensive and machining not as precise. Don’t spend the extra money to get a left handed proprietary parts kit from stag, upper parts are universal. There are plenty of options for quality ambi lowers my favorite so far is the Blem raw ambi lowers from ZRO delta for $40 when they’re in stock. There are tons of left handed BCG options on the market but my go to is the KAK chrome lined carrier paired with any of their bolts. Those things are tanks and the best bang for your buck anywhere. Trust me I’ve done a ton of research. I have 2 LH Toolcraft Nib BCGs and KAKs are better IMO and the chrome lined carrier lasts forever. Can’t go wrong with this upper it’s perfect. Just buy one and you’ll keep coming back. Don’t try to find them anywhere else, I’ve tried idk how OP keeps getting them in stock but no one else does and I’m not complaining. I currently have another one on order…happy building!

Part is top notch. great quality and attention to detail.

All I can say is that it looks great nice job keep up the great job

This Stag is a God send. Im ambidextrous in my shootings abilities, but faver my left side hold. This keeps the blowback out of my face while using my Suppressors.
Keep up the good work, both Stag AND Optics Planet.

Thanks,
Polly

So far so good. Shot a few rounds with zero issues. Using an Aero Precision lower, Toolcraft BCG, Ballistic Advantage barrel with no problem. Looking forward to getting another really soon.

I'm left handed. If you buy this, you will need to also have left handed everything. The BCG must be a left handed one (only made by Stag). The free-float rail also will not fit this since the ejection port opens from the top. I couldn't get it to fit into a vice block either

Fit and finish is good with no scratches. Fits well with my lower without requiring tools to push pins out and separate. Forward assist and dust cover work as expected. Item shipped quickly from OpticsPlanet and I am happy with this purchase. I would buy again.

Left handed ejection upper. Works like it should. Quality part. Being left handed; I have this upper on a few builds with zero issues. Would recommend and would buy again.

Purchased the left-hand model for my wife's build and the receiver is durable and well-made. Did not know what to expect but would purchase again for another build but would also buy the lower receiver to complement. would recommend this upper for any build.

My first experience with Stag. The upper is well made and no complaints. I do see that I will have to modify/shorten the ejection port cover rod to make the upper work with a rail that has anti-rotation that extends on the upper’s sides. Other than that, I wish Stag would contract Radian to make some “left-hand” charging handles putting the larger lever on the left side.