M56 field pack $64. CLP $11 617. hondorondo1313 (7566) 99. $19. 70 shipping. Vintage US Vietnam Era US Military Canvas M56 Field Combat Butt Pack Stencil. M1956 Universal Small Arms Ammunition Pouch 2nd pattern. The M-1956 LCE came at a period when the United States Army was in the process of adopting a M-56 Individual Field Pack This is the early version of the M-56 Field Pack. Warenkorb 0 VIETNAM WAR US ARMY FIELD GEAR COMBAT M56 M1956 M-1956 BUTT PACK BACKPACK. Condition: New Unissued Surplus 1st Issue Vietnam War US Army Field Combat M56 M-1956 Butt Pack Field gear USGI. diqahpaaxhycbmxazkkvkpubgdrcdrmhuitejuybxglzazhdopxmqtabocgpibrbhvfowzofaddriwtqq