Vism needs to change a lot about these - VISM M-LOK Accessory Picatinny Rail

do not waste your money no matter how cheap they are. first off, the t nuts are way too big to even fit in 99% of my PSA AR15 milok rail for some reason and I have a 15" handguard. I got 3 and wish I had just gotten magpul. I decided to buy replacement magpul t nuts which are smaller and always fit snug on my rail, and the nuts are too big to even fit through the hole in the rails, rendering them basically trash. I will just throw em in the random gun parts box I have for now and will be purchasing several size Magpul or another company, but definitely not VISM