The M-151A1C Weapons Platform is a specially modified M-151A1 1/4 ton jeep, revised to accomodate the M40 106mm Recoilless Rifle on an M79 mount. The M-151A1C carries a crew of two, six rounds of ammunition for the M40, plus minor items such as tools for the weapon. The M151A1C has a revised rear panel and heavier rear suspension than the M151A1 and a higher center of gravity due to the M40, making it even easier to tip over. Crew seats are provided over the rear wheels and a jerry can holder is provided on the left side, above and just to the rear of the front wheel well.
The M151A1C was also later used as a platform for the M220 TOW Anti-Tank Missile, replacing the M40 RR and its mount with the TOW mount and weapon.
The NSN of the M151A1C was 2320-00-763-1091. The manuals for the M151A1C were combined with the other M-151 family vehicles in the TM 9-2320-218-xx series of manuals, where the xx represents the maintenance level.