took my new SW MP 15-22 to the indoor range today. fired 750 rounds no failures. ammo was cci blazer and federal auto-match. bout half was fired with my silencerco sparrow attached. no poi shift. but i was using open sights so its a bit harder to tell. this was three mags 25 rounds each rapid fire at 25 yards. it was a bit easier to stay on target with the small figure in the upper left. ive got magpul mbuis sights and magpul moe grip. rails are covered with lightweight ladder rail covers. after i got done shooting i looked over their scope selection and they had a vortex strikefire sfrd-ar15. it switches between red and green dot. it came with a 2x doubler screw in magnifier and a single ring mount which co-witnesses the magpul sights. this setup would work on any flattop rail system. its my first ever dot sight so ill try and keep an open mind. didnt actually try it yet thats for next weekend just put on the rifle. here at the house.