Feed ramming pen holder

A pin holding device for a feed ram includes a retainer plate and a retainer. The retaining plate comprises two surfaces opposite sides facing, and a channel with a depression between the two surfaces. The holder comprises a main body, a pin receiving slot and at least two flanges. The main body is configured to slide in the recess of the channel and extending through a face of the holding plate. The pin receiving slot has an open mouth through one end of the main body. A first flange extends from one end of the main body along a surface of the holding plate, and a second flange extending from an other end of the main body along another face of the holding plate. The flanges prevent movement of the main body of the holder in the first recess in a direction defined by a longitudinal axis of the pin receiving slot direction.