Inner barrel guarder tn-05

[junkie123]

Hello
today i recived my new inner barrel of guarder 407MM
and i need to short it a liitle bit,but i have in the inner barrel few slots and if i shorten it so i down that slots.
and i dont know how that slots important.
so can someone tell me if i can shorten it
thanks for help.

http://www.intrudershop.com.tw/mmc/i...N/TN-03-04.jpg
http://www.intrudershop.com/show_pro...oduct=1527#top