M-61 Individual Field Pack (Buttpack)

M-61 Individual Field Pack This is the later version that has the rubber collar liner and is larger than the M-56 version. this is the most common field pack in the mid to late 60

US Army M-61 INDIVIDUAL FIELD PACK (BUTTPACK) draagtas - Groen (replica), Rugzakken & tassen

U.S. M-1956 Field Combat Butt Pack – International Military Antiques

BUTTPACK M1956 NAM KOREA US ARMY

M1967 Nylon Butt Packs and later versions - FIELD & PERSONAL GEAR SECTION - U.S. Militaria Forum

Canvas is vibrant and dark in color. Clean inside with paper manual.

M61 Vietnam Canvas Buttpack, New old stock. 1 only

雑嚢 フィールドパック│ナナシノミコト

Story About USGI Buttpack – Gear Illustration

Repro Vietnam Era US Army M-56 Butt pack - New from Hessen Antique

M1961 Combat Field Pack 'Butt Pack

M1956 (M1961 PATT) FIELD BUTT PACK U.S. ARMY VIETNAM ISSUE - GOOD USED CONDITION

US Vietnam Era M1961 Canvas Buttpack Field Pack OD Green M-1961