As a very good friend told me years ago, if something come up for sale that you want, buy all that you think you'll ever want, ever. Because if you wait you might miss out. Personally I'm in for three. If there is only going to be a limited run of 25, there might not be another one. I'd rather have it and not need it, than need it and not have it. Do I "need" three? No but like the "A" bolt, this not necessarily going to be a regular stock item. So I bought three "A" bolts even though I don't own a M11A1. Who knows what the future brings. Since I took that advice to heart, I don't have that "I should have bought it when I had the chance" feeling. YMMV.
Scott