Wasn't sure if it would work with my monster Eotech 512 site..but it could not fit better.Did not have to modify nuffin. Made specifically for the TRR8. I can now wear it on the hip and draw.. 8 rounds of .357 on target, guaranteed. Yea..it looks gawdy but in all honesty sure calms down the 357 and the whole rig is 3lbs. so about the weigh of an open site forged 6" N frame.Speed Beez 8 round .020" thick moons clips work well too. Metal, but thinner than most so you can load/unload with a simple hand tool they give you. 16 rounds in the pill box on reserve. Swell..