Has anyone used DSArms para folding lower on a STG58?  Does all the internals from the original lower interchange on the para folder?  Trigger, grip, and all.

Thanks.

I haven't built a para with the new DSA parts, but I've done a few with surplus para lowers.  I've got to assume DSA has their engineering correct, and as long as you're using a metric kit there should be no issues.  DSA's para lower is identical to their standard lowers except at the back end:

There should be a groove about a quarter inch wide running down the middle of the recoil area on the lower, this clears the rear of a standard (non-DSA) bolt cover.  There's also (obviously) no recoil tube threaded into the back ofr the lower.  Everything else should be a drop-in.

-hanko

The top cover will not interchange from a non folder with a para. The para kit should come with it.

I just ordered the DSA us made para folder and us internals.
Got an email that it was all backordered till october.
So it'll be while before I get it in my hands to look it over good.
But I'm sure that if anyone would have their specs down it would be them.