Thread: M4 s.i.r.
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Old January 5th, 2010, 06:28   #4
blackcaddi's Avatar
Join Date: May 2009
Location: Mississauga
you should contact pusangani because he changed my ics m4 into an sir and i can fit mini batteries no problem. it is a little tight but it fits. you can only fit an ics brand sir rail on an ics m4 just for your information.

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