orphanedcowboy wrote:Okay, The gas comes into the piston from the side, how does the perpendicular pressure laterally move the sleeve and spring?
The piston moves back out of battery, to start the process, the low tension spring on the outside is all that keeps the piston in battery and returns it to battery, how does the heavier spring operate versus the low tension spring?
It looks to me that the time it takes the piston to move vs How quickly the pressure acts on the inner valve and spring gives it plenty of time to open before the piston ever moves. This allows some of the gas to bleed off all in probably nanoseconds. I am not the engineer who spent millions on the Browning / Winchester design so I do not have the specs on the process but I am sure it has a reason or the R&D dept would just have made a solid piston in the first place and saved a lot of $$$.
The carbon steel springs, Aluminum recoil spring follower and plastic magazine followers are all Cost savings measures. but designing a valve into the piston compared to a solid piston is in no way a cost saving measure and these days if they can cut cost they will.
Not saying this sleeve is a bad thing to do but IMO it is a purpose built item for those that want to shoot mainly light loads. Just do not see what it accomplishes other than preempting a broken spring, thur the years when I had my own shop and still being around guns constantly I personally have never seen or heard of one breaking other than recently on here. I would like to hear from someone that has a few thousand rounds of 3.5" mags thru the gun with this conversion and see if it caused any bolt or receiver damage. Then If I ever did happen to break a spring I would give it a try.
I love to try new ideas as long as I can make sense out of it or the reasoning behind it.