I recently put on a GloryFire pic rail brass catcher. Works well for me.
Only drawback I can see is I added a high mount red dot so I could also use the factory sights and the mount for the brass catcher interferes with that. Also adding the mount for the brass catcher meant I had to mount the red dot to the back of the rail which works for me, but may not be your preference.
This is a pic before I put the high mount red dot on. The catcher itself slides on and off the catcher mount easily but holds its position well.
Also I prefer the bolt handle on the right so this means I have to close it before putting on the catcher. Could be easily remedied by switching the handle to the other side.
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