Not fit ria - Streamlight TLR-6 Tactical Light for 1911

I initially bought it for my RIA FS. It will not fit in the gun. I drop it to my Kimber Custom II and fits very well. Controls are easily reachable. Light is bright enough in dark environment. I had the streamlight in my M&P Shield 9 mm with Laser. I like it with no Laser for my 1911. Hopefully they make one that will fit the RIA