I have the ones for the 1911... and they are solid. Guy that designed them was on the Tavor design team.
Personally, I want light options on my handguns... but for something like a 1911 (only wanted one because of the history... not getting multiples or spending $2,000+ for one), I really don’t want to have a rail permanently installed on the dust cover. Those grips allow me to keep it fitting in non-rail holsters, but if desired, run a light (granted in their holster).
I’m likely going to pick up the stainless Tisas eventually (likely when I leave NJ... not giving them another dollar for pistol permits, so only ones I might pick up before the move will be on my FFL-03 out of state). The Recover Tactical grips could be an option, but I’d want to see if they offer a holster for the new models, like the 1911 (or if the Hi Power version fits in the 1911 holster). I am unsure about going with the SFS trigger, as that has been in YouTube media for the past few weeks... but it does interest me, as well.
Older set (prior to the holster release), but I love the grip on this one...