Choate's new adjustable length of pull folding stock for the Heckler & Koch rifles. This stock is adjustable from 12 1/8 inches to 14 1/8 inch length of pull using Choate's spacer system. This lets smaller stature shooter or officers wearing body armor to have a weapon that is better fitted to their needs. This stock uses the same quick open steel housing and folding arm that all of Choate H&K stocks use. Will fit the HK MP5K and clones. These stocks have Choate's life time warranty, but are built tough enough so that you never have to use it.