Picked up a Bonna at kempton... bolt action military trainer type jobbie, 4.4mm ball repeater with Mauseresque woodwork. Quite similar internally to the Haenal 49a I already have, which is handy as I knew how to repair the missing pellet probe and get it firing Obviously quite low power, even more so that the Haenel - not surprising as the Bonna bolt has zero mechanican advantage, unlike the schmeisser rocking bolt of the Haenal..

But what model is it and how to date it ? it has "31" stamped on a few parts ? Also when were they made ? Looks just like the Mars, but I gather these are newer ?

Google isn't helping me much... all I can find of real use is from Frakor in this site:

"there are 2 models, a model 115 (100shot) and a model 98 (75 shot) both use the 4,4mm ball."

Mine is the full length

So no idea what the 31 stamped everywhere is !

TIA,

JB