Anyone bought one of these?

http://www.gungrip.com/detail_B418__3275__Mauser%20.html

Are they cheap hard plastic junk or a urathane rubber material like a scateboard wheel or urathane aftermarket 4x4 suspension bushing?

It looks almost identical to the one Brownells was selling a few year ago (may be still). The one I bought was hard, relatively stiff (e.g. bend it and it would crack) and pretty dense. With heat applied, you could bend it to fit a buttstock curve.

They could have picked a better original to use for the mold cast though - the thing had 'built in' wear like someone had used it for a crutch. OK I guess, if you are going for the vintage look...

I haven't bought from them, but I just got a repro Parker buttplate from:

www.vintagegungrips.com

Nice quality and matched the old original very well.

Craigster, looks like they sell the same buttplates

Is yours a hard plastic or urathane rubber material?

It's not hard plastic. It could be a urathane rubber of some type. A real hard push with a thumbnail left a very slight indentation.