From KRG’s website:
“*The Tikka inlet accepts T3, T3x, and CTR versions, however slight mods may be required on the trigger-guard for the T3 TAC A1 to function properly. Tikka rifles accept AICS pattern mags with the exception of the Magpul AICS polymer mags.”
MDT mags will work fine. Enjoy the X-Ray! Had a CTR in 6.5 with a X-Ray and really liked it.