Free M-31 Buffer Upgrade

Notice
Your newly purchased Suomi M31 is under warranty by TNW Firearms Inc. We have found issues with a buffer fault in the original construction and we are now correcting it.

In the upgrade repair kit you will find a new buffer cylinder, buffer washer, striker spring and assembly drawing. Remove the original buffer spring assembly and discard it. Replace with new parts provided.

If you cannot complete this upgrade, TNW will ship the firearm back to the factory, repair it and send it back to you at no cost.

We are sorry for any inconvenience and thank you for purchasing our collectable firearms.

You may also download a PDF version of this upgrade information. Download