Thread: Madbull barrel vs. Prometheus barrel
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Old November 17th, 2008, 16:08   #11
The Saint
 
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Join Date: Jan 2005
Location: Quebec
Quote:
Originally Posted by Jimski View Post
what about a ventilated head?
does it replace a ported cylinder?
No, a ventilated piston head doesn't replace cylinder porting. Ventilating the piston head only serves to ensure proper O-ring seal.
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