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's. Two grades available. VG used and EXC used. Learn More
M-56 Individual Field Pack This is the early version of the M-56 Field Pack. It is slightly smaller and more square than the later M-61 Field Pack and it does not have the rubber collar liner. We have VG used and EXC available. Learn More
