On my pistol there was very little co-witness. ATEI said there would bottom 1/3rd co-witness with the SRO was no where near that. On top of that shooting with the irons on a rest rounds were 6-8" high & 3-4" left. The sights are suppressor height.
Didn't know Springer offered trigger kits. I installed a Powder River Precision trigger kit in my Echelon. Trigger pull went from 5.8 lbs to 4.2 lbs. Almost no take-up, fairly clean break, short reset and almost zero over travel.
ATEI milled a slide on a SW compact for a Trijicon SRO. The rear sight was in front, never did like it. Removed the SRO the pistol is now my nightstand gun.
I was having real trouble focusing on the front sight. None of my pistols had optic cuts sent three to ATEI for milling. I started out with Trijicon rmr's & sro's. Have three 1911's, will never have them milled. You shoot good using irons. Never would have went to red dots had my vision not...