Ok, general idea is single stack as original, double stack cannot be used without serious bottom plastic mods, 8 to 10 rounds, 10 would be max I think.(whichever does not look too silly and works with a bipod) follower and spring will be made as with the rest of the magazine.
I hope that the price will be comparable to the plastic 5 round mag that tikka sells obviously quality will be nicer than the plastic offering. Anodising offers some colour variation for the tackle tarts
If I can make these to a standard that I think would be acceptable then a few will be made for sale if there is a serious interest. As for the m690, do not own one of them! but if you can lend me a magazine / draw / photograph the magazine with accurate dimensions then it can possibly be looked at! (as you probably can imagine Physical fit and operation needs to be checked against the real thing!)
(oh, BTW, was offered a plastic 5 round mag for £100..'twas then, after I picked myself up off of the floor, that I decided to make the damn things and not limit myself to 5 rounds!!!)
I will post pics of prototypes when they are completed! Be aware that this is a 'spare time' project and that there is significant tooling / experimenting to be done!!!
Any ideas, comments are welcome!
Cheers