For hunting rifles only.It has improved technology and it is very effective on the first round pop/cold barrel shot. If you want to add on extra modules we recommend to go up one caliber group. Available as Mega H2 with 64 mm diameter. MEGA H2 is modulbased to give the user the option to mount it as a 1, 2 or full 3 modules version. For standard diameter and length we recommend to look at the new H3 series
