These are surplus original USGI from M63 mounts and/or cradle mounts
Used, Good/Fair condition with some rust generally as pictured. Most look repainted by the Yugoslav military.
Orignal USGI WW2 era production
They also fit most USGI cradle assemblies. M23, M3AA, M2AA, MM63, 30/50 Combo
M2 HB 50 Caliber Ammo Can Mount M23 Cradle Tray M2HB BMG