I could only find one other post about this online so I figured I'd let people know that you can put a T1X in a XRS chassis but you need file away the AI magazine latch to fit the T1X magazine. Its a pretty easy job but you won't be able to use AI mags ever again in that stock if you want to use it with a Tikka T3. After doing that your T1X will fit 100% with the XRS.