Fits the Mossberg SA20 shotguns, the extension is 6 inches long adds 2 rounds of 2 3/4 inch shells to your gun.
Includes Magazine tube, Spring & Barrel Clamp. 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.
DOES NOT COME WITH SHELL FOLLOWER.
Made In The USA