Description
Fits the Mossberg SA20 semiauto shotguns, the extension is 8 1/8 inches long and adds 3 rounds of 2 3/4 inch shells to your gun. Fits barrels of 22 inches or longer. Includes Magazine tube, Spring, & Barrel clamp (sling swivel loop pictured is no longer included).
DOES NOT COME WITH SHELL FOLLOWER.
On some of the SA20 guns you will have to remove the crimp at the end of the magazine tube. This can be done by filing or using a grinder.
