FOR DISPLAY *INERT* ALREADY FIRED CASE **NO POWDER/PRIMER** PAPERWEIGHT TAKLING PIECE PERFECT FOR THE MAN CAVE 20mm MK244 (Tungsten Penetrator) 20MM MK244 MOD O APDS Fast Attack Boats Anti-Ship Missiles Helicopters Small Water Craft Low Flying Planes Improvements as Compared with MK149 The Mk244 projectile dispersion is 40% less than Mk149. Producing lower Circular Error Probable (C.E.P.) with increased probability of hit.