M27 105mm Recoilless Rifle in obat12

[Pfor]

Interesting information.

Until now, I had assumed that the M40 was authorized by TOE 7-18 Change 5 on 14 October 1954 rather than by 7-18R, since the R-series seemed to change precious little in most cases.

In any event, in 7-18R the M40 platoon was authorized 6 106-RR on jeeps in 3 sections of two.

As to the M27:
a) the original authorized description was 'Rifle 105-mm on mount M75', and everything I found said that the M75 mount was permanently affixed to the jeep due to its heavy weight;

b) the earliest reference I came across was TC-31 4 September 1952, which described itself as an interim document pending release of official training docs and FM.