Joseph, guessing you're asking Wich night sights will work with a red dot on the buckmark urx. Unfortunately the way the buckmark urx is made iron sights won't match up with a red dot. Because of the picatinny rail the red dot sits to high to cowitness with irons. So it's one or the other unless you get it modified. Sorry but hope this helps.

Hi Joseph, the Browning Buckmark URX is not cut for optics. An adapter is available that will work with the Browning Buckmark URX and is compatible with Red Dot Sights (Mounting Screws INCLUDED): Trijicon RMR, Doctor, Insight MRDS, Leupold Delta Point, Leupold Delta Point Pro, Vortex Razor, Vortex Viper, Vortex Venom, Burris Fast Fire 2 & 3, CMORE RTS & STS, Sig Romeo 3, UTG Reflex Micro Dot, Shield RMS (additional screw purchase required), Holosun 407/507c, Kahles Helia, Springfield Hex Dragonfly, Bushnell RXS 100 and 250, Crimson Trace CTS 1263. I highly recommend the Locktite Blue to keep everything snugged up : amazon.com/Outerimpact-Adapter-Browning-Buckmark-Pistol/dp/B07565BFCC --- Cheers and stay safe!

Hi Joseph, the Browning Buckmark URX is not red dot ready, you would need to this adapter separately >>> amazon.com/Outerimpact-Adapter-Browning-Buckmark-Pistol/dp/B07565BFCC .....This mount is compatible with any of the following: Trijicon RMR, Doctor, Insight MRDS, Leupold Delta Point, Leupold Delta Point Pro, Vortex Razor, Vortex Viper, Vortex Venom, Burris Fast Fire 2 & 3, CMORE RTS & STS, Sig Romeo 3, UTG Reflex Micro Dot, Shield RMS (additional screw purchase required), Holosun 407/507c, Kahles Helia, Springfield Hex Dragonfly, Bushnell RXS 100 and 250, Crimson Trace CTS 1263 ....Stay safe & have a great day!