PDW builds - Lets see them, and share results
- Thread starter AbHobbyist
- Start date
heavenIsAlie
CGN Ultra frequent flyer
- Location
- Abbotsford
anyone used the PWS 7.62x39 7" gun? looking at grabbing one for my first AR
We (striker66 and I) built it ourselves. Its not a "Port" stock, it extends. I just didn't post the open pic as it is a bit wide.
That doesn't look like either of the CF PDW's that I saw but they could have experimented with a bunch of different stuff. The big problem with an AR based PDW is the buffer tube, which is difficult to get rid of. Our system is buferless so we were able to reduce the length of the "buffer" tube by the length of the carbine buffer plus the compressed spring. It took a bit of work to get it to cycle reliably but the system works perfectly now. It is lots of fun to shoot and gets lots of looks for being so small. People can't believe that an AR can be that small.
winnipegger
CGN frequent flyer
9.3 bullets are infact the same diameter as the real 9x39 (IIRC). Unfourtuneatly i think the price and dificulty finding them is what suputin meant as a lack of supply. That said if i could go through the #### of building a vz in 9x39 spending a lot on bullets seem rather minor...
Any better pics of the guide rods..? How's the stability when extended, much lateral or vertical play..? And is the buttplate molded poly or machined aluminum..?
* and I was under the impression getting rid of the buffer-system (spring & tube) wasn't a big deal...?
Nice work..!
The stock's stability when extended is good. Not a single person who has shot it had any issues. Even the cheek weld is decent. To me the biggest problem is the OAL of the gun. It is TINY and I am 6'2" so I tend to stick my fingers out over the end of the forend and burn my fingers on the hot suppressor.
The entire thing is machined aluminum at this time. It has occurred to use a plastic butt plate but until it goes into production that kind of thing would be prohibitively expensive.
These are all I have of the stock right now.
You know those little bits inside the standard buffer that rattle around when you shake it? Those are anti-bounce weights and without them, the bolt carrier bounces off the back of the barrel. If the carrier is not snug up against the barrel extension, the hammer will hit the bolt carrier before it hits the firing pin which soaks up energy and results in light primer strikes. We fought with that for a long time before realizing it just would not work reliably without the anti-bounce mechanism.
Fitting an anti-bounce system into the available space once the buffer was removed required a bit of work and some "out of the box" thinking. There isn't a lot of room in there and you have to consider the recoil spring and its guide rod.
In the end we have a system that is 100% reliable, does not require a wholesale re-organization of the bits that are there and can be made in an economical fashion.
Do you have a Bradley Fighting Vehicle to put that in?
