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Posted: 9/5/2011 11:16:18 AM EDT
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Some says I should ask this question on the AR15 Piston Forum.
I have ordered a PSA complete upper/lower and stripped lower that I plan to build (first build). I saw that Rock River Arms has a PDS (Piston Drive System) that allows for a folding stock. I am not sure if they offer a conversion kit. Does anyone know where I can get a kit for my AR15 to allow for a foldable stock? |
| The PDS is a pretty proprietary looking upper so don't imagine anything short of a complete upper would be likely. I called asking about offering uppers and any plans to do 300BLK. The person I spoke with said they have no plans to offer uppers alone or do a 300BLK. |
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