How do you identify which Tikka T3X you have? I bought one used a few years back but don’t know which model. It has 24” threaded barrel in 6.5 creedmore. It was restocked in a MDT LSS-XL stock when I bought it. With hand loads it shoots really nice groups. I’m just not a fan of the AR style pistol grip stocks. Would like to put into more traditional stock. What is difference between CTR and UPR? Could this be something different? Need a little guidance so I know what stock this will fit in.