Printed in Orange PLA It is held in place by the magazine catch. This will fit all T3x & T3 Rifles that take the standard polymer Tikka magazines. Tikka only have 1 action size and 1 inlet size. All they change is the lenght for the bolt stop and the internal dimensions of the magazine. the exterior of the mag remains the same size. If you require an AICS version please check my other listings.