I've built a nice mag pump and I've started trying to tweak it a bit.
Since the kit didn't come with a bumper... I reused the blue one on the classic valve. My only complain is that it requires more force to recock it with the pump.
I removed the blue blumper and just used the spring. Very nice pump action... but it want to occasionally recock on it's own.
I tried trimming it down so it fit inside the waffle spring... then it was better but would still ocassionally recock on it's own.
Then I saw the thread about PT Spacers causing bolt stick so I opened up my valve and found a good old style PT Spring. I tried taking that out... works but occasionally recocks on it's own.
So that's where it stands. I have a functional pump with a hard pump stroke or a great pump stroke on a semi-semi-auto.
Any ideas how to get the bolt to consistantly stick without using the blue bumper... it's close... just need that last bit to keep it from recocking. I considered cutting a turn off the bolt spring but wanted to pose the quesion here first.
Ideas?
Since the kit didn't come with a bumper... I reused the blue one on the classic valve. My only complain is that it requires more force to recock it with the pump.
I removed the blue blumper and just used the spring. Very nice pump action... but it want to occasionally recock on it's own.
I tried trimming it down so it fit inside the waffle spring... then it was better but would still ocassionally recock on it's own.
Then I saw the thread about PT Spacers causing bolt stick so I opened up my valve and found a good old style PT Spring. I tried taking that out... works but occasionally recocks on it's own.
So that's where it stands. I have a functional pump with a hard pump stroke or a great pump stroke on a semi-semi-auto.
Any ideas how to get the bolt to consistantly stick without using the blue bumper... it's close... just need that last bit to keep it from recocking. I considered cutting a turn off the bolt spring but wanted to pose the quesion here first.
Ideas?





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