The MZB-35 with interchangeable set of calibre specific end caps by Eagle Vision reroutes the air pressure that escapes from the muzzle to the sides to prevent air turbulence behind the pellet. The four calibre specific endcaps can be swapped out easily to optimize the performance.
The muzzle break is equipped with a threaded 1/2UNF-20 adapter.  This set comes with calibre adapters for the following calibres:

• 4.5 mm (.177)
• 5.5 mm (.22)
• 6.35 mm (.25)
• 7.62 mm (.30)