https://www.gemtech.com/improved-outbac ... ou-program
From their website:
The new monocore gives the end-user easier maintenance, a sexier design, and longer life of the suppressor.
In addition to that, it will make all Outback series suppressor now rated for 22Mag in addition to .22lr (GEMTECH Suppressors only)!
The new upgrade package includes:
The new monocore baffle stack
Exclusive G-Core patch
A new pouch
A new suppressor box
A new manual to reflect the G-Core technology