Inert 37mm M21 Drill Round with M17B1 Steel Case in Container M59B1.
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Inert 37mm M21 Drill Round with M17B1 Steel Case in Container M59B1. 37x223SR for Gun M1A2 and M9 Autocannon M54-R.L.B. Projectile with M50B1 Dummy Fuze, M17B1 Case, Container M59B1.