.....I have sent a couple of emails to 'Wolff', asking them to make new F/P springs for the MG-34 bolt. As you guys know, we are dealing with old 50 + year old springs, and you are lucky to find a spring that is not all depressed out there in the mg-parts market.
......Even the sa-MG-34 guys would benefit with a new made sping, in that they just might have evough power to fire surplus ammo, with out the hard pull that one feels with the TNW spring.
....>>> If you guys would go to their site and send them an email asking for them to make a new spring, that just might get them to research and move to that end, if they think there is a demand out here for it.

bobh
http://www.gunsprings.com/home