Great rail with just a slight bit of play (fix suggestion in review) - Midwest Industries Mi Handguard Sig Sauer Mpx 8.0" M-lok Black

I installed the rail on my MPXK and the only issue I had was a small amount of play was slightly felt in the fitment. I've seen this is a common issue with the MPX platform and how the rail is designed to install. I fount an easy way to remove the play. Just take 2 4mm rubber O-rings and slip one on the bottom peg and one on the top notch that protrudes from the rail towards the receiver and the slight movement should be gone. Now fitment feels rock solid.