We have a mag restriction, what about belt fed?

[4g64loser]

Man, I would love that RPD.

The polish kits, like the one Combloc has, came in with intact barrels. Condition of most was very good to cherry. The semiautomatic/closed bolt conversion is not an easy job.

If you can locate one of those kits, the job is worth doing. I can't recommend doing the job on a us made barrel.

 

[Slowhand]

One belt only. No length limit

How about endless belts, where the beginning is attached to the end, and a hopper inserts rounds into the endless belt? Not that I've ever seen one... :-)

 

[Allen65]

How about endless belts, where the beginning is attached to the end, and a hopper inserts rounds into the endless belt? Not that I've ever seen one... :-)

Why bother with the belt at that point; just go straight hopper feed:
https://www.forgottenweapons.com/manual-machine-guns/union-repeating-gun/