Tikka T3x Tac A1 is a special version of Tikka T3x rifle series, which is adapted for military use, compared to the other T3x rifles, which are usually considered as hunting line of rifles. It has interchangeable pistol grips, that allow the user to adjust the angle of the grip, although these grips are sold separately. Even though the rifle has a detachable magazine that can store 10 cartridges, Tikka widened the angular ejection port for the sake of simplification of inserting one cartridge at a time. The rifle barrel is surrounded with a tube, which has M-LOK holes all around the tube. On top, it has a 0 MOA Picatinny rail over the whole length of the tube for rifle scope mounting purpose.