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20x129 mm


Well-Known Member
Hello every one, can anyone help with this 20mm I picked up the other day? the case lenght is 129mm,steel painted green & headstamped 329 BM 97, is the projectile(no markings) & links,marked MFT 66-97, correct for this case?
Cheers Tony
Last edited:
Looks like an Oerlikon KAA case, as used mainly in naval light gun systems (including the RN's GAM-B01).

Can't offhand comment on the projectile or link.
Only thing i know that MFT stands for metaalwaren fabriek tilburg, metal factory located in tilburg the netherlands, they manufacture links and loaders.