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Old 08-25-2011, 10:51 AM   #377 (permalink)
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Join Date: Jul 2006
Location: Coventry R.I.

This is my BKO pump I have been working on for some time now.
the sled is made of pvc and steel. and the pump is from a 99 autococker. I tapped a hole in the front valve cap to mount the pump rod and changed the lp reg from the stock one in front of the trigger guard to a kapp lp reg for better control of the ram. the bolt pin is un-modified, the sled keeps it above the ram.
I cut the trigger frame and trigger, because pumps shouldn't have double triggers

Last was the auto trigger. a switch that's activated by the sled keeps the marker from firing until the bolt is closed.
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