Feyachi M57/M37 1.5X - 5X Red Dot Magnifier with RS-30 Reflex Sight Combo, Multiple Reticle System Red Dot Sight & Magnifier Combo Built-in Flip Mount

My review: For starters. i installed the combo on and went to the range. Here’s what I found. The red dot is very bright and sharp, I had no issues picking it up in the full sun, the optic mounted tight and securely to my receiver, the weight is manageable, not light as a feather but not heavy either, the finish was typical of a budget optic, the glass on the RED DOT was very sharp, BUT I wish the glass on the MAGNIFIER was sharper~ it left more to be desired. Overall construction seemed very SOLID. There is a little “play” in the magnifier but I have ZERO complaints and didn’t even notice it while shooting however I would prefer it were a more solid spring hinge. It is a push button design, I would like to see a flip design that doesn’t require the push of a button. Setup was medium difficulty level. I had dark shadow in the lower 1/3 of the glass when first mounted so I added a UTG “low” picatinni riser to bring the glass higher above the receiver and that fixed the issue, I liked that they included a hex screw driver to adjust up/down/left/right of magnifier to get proper center alignment of the red dot paired with the magnifier. It would be more convenient if this adjustment function was a “tool~less” design maybe with turning turrets. One thing i found very helpful was to mount the magnifier as far back on the rail as it would go as well as being the focus ring all the way out. This gave me optimum eye relief and viewing. One thing I was disappointed about was the low light transmission, I noticed at dusk it was noticeably dark. My favorite feature of all besides the very bright red dot was the 5x magnification. For this reason I can’t justify spending so much more for anything with less. Overall, I was surprised how much I liked the form and function of this setup. Also, I very much like how it looks. Side by side with optics of higher price, a person would not be able to distinguish a noticeable difference. I’m a world of very expensive things, I’m impressed with the high quality level and low affordable price of this setup.The pro’s:1.) PRICE (every other magnifier I see online is like $300)2.) VERSATILITY: zoom range is 1-5x (way more glass than the others which are normally 3x.Cons:1.) low quality glass2.) poor light transmission at duskI rate this optic a SOLID 8/10 overall. I’m very surprised and pleased with how it preformed. I was going to give it a 4-star Amazon rate but the low price tag compared to what you’re getting raised the value level enough in my mind to give it a low 5-star. I don’t believe you will be disappointed in any way with this product. Personally I had my doubts at first but after running several hundred rounds through it, I loved it more and more. Hopefully in the future Feyachi continues to improve their product and enhance the user experience even more.

Was thrown off at first because Im used to the thin at the far end on my ffpln optics so I was looking through it backwards(yeah i know I'm an idiot) but after getting it on like a normal person I realized the red dot with absolute co-witness alone was worth a few hundred.. I've spent some scratch on optics before but the wide field of view increases acquisition 10fold. And while enlisted uncle samson gave us a magnifyier for our holo but that thing stayed in our pockets 99.999% of the time. For the reasons that are fixed in this nice sturdy little piece of kit if you mount it left side swing like they have advertised it works nicely being able to press the locking mechanism w your thumb as your moving it. Also it fits perfectly on a small riser if you need it(I absolutely didn't its sits at perfect height as it is) cant say theres anything to complain about but I did find a few 3d printable addons for this guy online I'll update my photos when I finish the printing. Also no changes in 0, shooting grendel hp about 200 through her still holds zero.. perfect for hunting any game that could potentially turn and run towards you pigs and such. Very bright and came with an extra set of batteries.. opened the cap to put em in and it was full..nice suprise

There are a lot of things that I enjoy about the products in this combo. I love Feyachi's red dots because they are simple, well constructed, and give you the option of four different reticles to choose from. As I do when testing red dots for airsoft, though, I had to sacrifice it to the BB gods to see if it could withstand being shot by an airsoft gun. The lens did not survive a hit from a CQB legal gas pistol. It did technically deflect the BB, as it did not go all the way through, but the glass was practically shattered as a result. This says absolutely nothing about the build quality and worth of the sight, however, as all red dots will do this for the most part. This does help stress that, when using sights in airsoft, make sure to have a lens protector of some kind!The magnifier was well constructed as well. Watching other review videos on them for a bit of added context, it seems that the M37 improved on some shortcomings that were present in the previous model (M36), which is wonderful to hear. The mount construction is great, and the adjustability of both the sight picture and the focus with the adjustable eye piece are fantastic features. The eye relief is shorter than I expected, being most visible around the 62mm/2.4 inches mark, but I am generally using short dots (low power scopes typically between 1.5-5x) that have eye relief of 4-5inches so I simply needed to adjust from what I was used to. Once I got used to the shorter eye relief, sight acquisition was pretty snappy!Overall, I think for under $150 you can't really beat this combo. Is it a perfect product? Not exactly, but it doesn't have to be. It serves it's purpose well and the construction allows for confident use under most circumstances. Just remember to get a lens protector if using it for airsoft!