First day at the range after 250 rounds the Dogtag adapter plate kept my Trijicon RMR fairly clear of gsr. I was impressed by the design to deflect debree from my S&W 2.0. The Dogtag fit well with no play in the factory C.O.R.E. optic cut. I will say the screws that came with it by industry standards were short for the application once I added the seal plate. Standard 6-32 FHCS x 5/8 worked with no modifications. Rechecked torque after outing and 12 inch lbs was maintained. Well worth the price.