Save your money on better sights - VISM Flipdot Reflex Optic 1x22mm 3 MOA Red Dot Sight

Bought this sight for my FMK since it was either waste $300 for an OEM slide which came optic ready (and I would still need to buy a sight) or $60 on this sight which included a rear dovetail mount and also the red dot sight. Took roughly a week to arrive and I was disappointed in the sight. The mounts seem pretty reliable (so far) but the red dot sight is so tiny and dim that you can barely see it at all. Don't expect to use this out in broad daylight or in a well lit room, since the red dot will pretty much be gone when you try to aim with it even after sighting it. You're better off just taping a laser pointer onto your gun since it'll at least work in every condition compared to this sight. Not only that but because this sight is compact, the battery and wiring are easily exposed to moisture since they're out in the open. You also have to keep your tools on you if you want to easily replace your battery on this sight, since it sits right under the sight itself. Only way to replace the battery is removing the mounting screws and remove the red dot sight altogether - poor design choice for an already subpar sight. I should've just shelled an extra $40 and bought a higher quality sight from a reputable company because I basically paid $60 for some mounts. Like the saying goes, cheap stuff costs you more.