Mate not a clue what that means. Have a Proto Maxxed Rize and a etek 4
For the freak barrel system you need 3 pieces:
Freak front of your choice
(this advert is for a ‘tactical’ style front)
Freak back in the correct thread for your gun
(you would need a cocker/autococker threaded back)
A freak insert
(you would want a selection of inserts, otherwise there’s no point to using a freak, pick the insert that best matches the paint you are using on the day)
I use a freak system and can recommend them.
(Note that there are now two types of freak available, standard and superfreak. The superfreak has longer inserts than the standard freak so they are not compatible with each other)
Freaks by smart parts, gog, and empire are the same thing (except for superfreak)
You get best value for money in a freak set, but can add different backs/fronts as you wish - plus there are always more inserts
To be honest you only need a section of small, medium, large.
You don’t need every single insert with 0.002” difference between them. Despite me building an entire collection of every freak size (in aluminium) then changing to stainless steel and buying them all over again!!!!!!!!!!!!!!!!!!!!!!!