T Timo Members Joined Apr 26, 2016 Messages 8 Reaction score 0 May 27, 2016 #1 Just received a Nuprol Bocca suppressor through the post and was wondering if anyone knows what is the function of the spring which runs the length of the barrel?
Just received a Nuprol Bocca suppressor through the post and was wondering if anyone knows what is the function of the spring which runs the length of the barrel?
jcheeseright Supporters Joined Jun 14, 2012 Messages 4,280 Reaction score 2,261 May 27, 2016 #2 keeps the foam in place.
