M19 mortar Patent us3782240 Mortar mm 60mm tube elevation schematic weaponry improvised bev fitchett guns magazine
M29A1 81mm Medium Mortar
M29a1 81mm medium mortar Mortar mm m224 military handheld army fm m19 mode gun Mortar 81mm infantry technical data military medium m29 system gp inetres
81mm mortar ammunition and fuzes
Mm mortarMortar 81mm m880 ammunition military gp 81 srtr inetres infantry .
.
Patent US3782240 - Firing mechanism for mortars - Google Patents
Mm Mortar - Improvised Weaponry - Bev Fitchett's Guns Magazine
m19 mortar
M29A1 81mm Medium Mortar