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Kerbosa · July 17th, 2006, 21:23

Orignally I was using an mp5 with a pdi 140 spring, after upgrading my gun to contain a gauder hop (black type), promethius 407mm barrel, gaurder m4 cylinder, piston, bearing piston head and bearing spring guide: i have noticed my fps droping from ~355ish to ~340ish. around 10 to 15 fps lower consistantly. I am wondering if I am using the wrong cylinder for this length of barrel, or if there is another explination for this as I would have expected an increase. Thanks in advance for your replies.

July 17th, 2006, 21:23	#1
Kerbosa Trader rating Join Date: Dec 2001 Location: Markham, ON	Fps loss after upgrading V2. Orignally I was using an mp5 with a pdi 140 spring, after upgrading my gun to contain a gauder hop (black type), promethius 407mm barrel, gaurder m4 cylinder, piston, bearing piston head and bearing spring guide: i have noticed my fps droping from ~355ish to ~340ish. around 10 to 15 fps lower consistantly. I am wondering if I am using the wrong cylinder for this length of barrel, or if there is another explination for this as I would have expected an increase. Thanks in advance for your replies.