Considering the RXM

I am really considering an RXM. I wanted to get a Glock 19 Gen 5 but dang the RXM has all the features I want at half the price, it’s modular and I have a ton of 19 mags.

For those who own one, how’s it been? Mainly concerned with reliability. It will be a carry gun.

And if I did get what, what do you think the best budget optic is? Probably something from Holosun or Vortex