the diagrams on the beeman site are actually very good - would be stretching it to call that a knock open valve - more of a push open (and it's the lack of a need for hammer inertia that makes them very different from a std knock open) - and I can see why decocking would be very scary
It does lose the advantage that a knock open has in terms of power regulation though.. there may be a slight difference in valve closure time with pressure, but essentially the opening is always the same, unlike a knock open where it opens less / much shorter at higher pressures, smoothing out the power curve. With this, I'd except every shot to slowly reduce in power. One advantage however is zero hammer bounce wasting air, so efficiency should be good.
How does the de-cock button / lever work ? I guess it must push the striker latch down out of the way of the hammer tumbler notch to avoid it catching and allow it to pass freely when released ?
JB
Last edited by Shed tuner; 30-06-2018 at 08:56 AM.
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.