WE PDW M4 Open Bolt Feed

Okay guys,
Now after last weekend, it's Appearred that the Spring for the Housing that attaches too the nozzle was weak causing kinks in the spring which fail on three of four Nozzle housings, so went to Hall's hardware store and dig through the springs and found the #16U Extension Spring 2" length 3/16" outer Dia #20 wire gauge which is similar to what was install. Remove the Housing Pin holding spring then remove the smaller pin holding the Nozzle, other side of spring and plastic valve insert, Now the NPAS valve has an spring in front so watch how it seperates to ensure installation goes back correctly. Pictures to follow soon. Also results from testing

This thread should be renamed: Howie's How-To Scratch build a GBBR

Okay Guys,
It was successful, shot through 5 mags and no hang ups with the nozzle, good to Go!

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Everything apart. minus the valve assembly, it is still in the foward Nozzle tip

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Nozzle put back together where you can see the Spring sticking out

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Complete Nozzle housing back together

Your right it should be renamed to howies how to build pdw from scratch haha

Okay guys after all the shooting of B.B.'s through the Tan PDW, the Valve Striker Assembly finally Broke, lucking that Allout had a spare one . Now good to go for a few more thousand rounds

The bolt is actually pretty similar to my bolt on my WE M14. Have you had any plastic pieces break off of the bolt assembly and jam it? I did but I could never figure out where they came from and when i put it back together it shot like new.....