I have the Tac. Innovations version of that, Tim has a Serbu. Just buy one like that with the 5$ AOW tax instead of screwing around trying to save a dollar. Also, the short Aguila (sp?) shells will not work because of the skeletonized shell lifter (as opposed to a solid Winchester type). It will only one extra short shell anyway.There are cool holsters for the Serbu guns, the Tac. guns won't fit in them.