Fits the Mossberg 5500/930/935/9200. These kits are constructed of solid steel. —PLEASE NOTE: The 9200 extensions must have special shell follower. If ordering for a Moss. 9200 in the special notes sections when placing order tell us it is for the 9200 or please call us at 800-972-6390 to place the order so we can get you the right follower.— Kit includes: Magazine Extension, Barrel Clamp (sling swivel loop pictured is no longer included), High Visibility Shell Follower, and Spring.