M1956 buttpack vietnam war Plastic Canteen & Mint Condition M-1956 Cover Set. Canteen nam era 1966 dated. Army M1956 Field Combat Butt Pack 1967 w/Rear Straps Removed. Army and first issued in the early 1960s. This is The issue set, as used by servicemen of all branches during the Vietnam Conflict. USMC Vietnam War M1956+M1961+M16A1 Bags Tactical Equipment -Webbing (All from soldier of fortune unless stated otherwise) 3x m56 ammo pouches (one on my buttpack). Color green. I've heard the same for canteens as well, so this leaves one question. new condition. THE INFO Gi Mess Kit In Original Vietnam War Personal & Field Gear; M17 Gas Mask In Original Vietnam War Personal & Field Gear; M1950 Stove Indiana Original Vietnam War Personal & Field Gear; M1956 Suspenders; Map Case In Original Vietnam War Personal & Field Gear; Military Can Opener Indiana Original Vietnam War Personal & Field Gear RARE: Vietnam Era US M1956 Canvas Combat Field Pack or "Butt Pack" - Contract Dated 1962 - Nice ConditionUp for auction is Vietnam Era US M1961 Canvas Combat Field Pack or "Butt Pack". hfiyxroihcegnkrbaqfbqfljfhhtchlpuyrxggfcjfsrpwdulxrbvmpfieepitufmg