Add firepower to your favorite shotgun. These magazine extensions are constructed of blued solid steel and come with spring. A clamp and follower is NOT included with this model. The threaded tube replaces you magazine cap and gives you the ability to add extra rounds to you magazine. Easy to follow instructions are included. The magazine extension tube is great for home protection, competition shooting, and law enforcement.
Fits: Benelli M4 Shotguns
**Magazine round count is for the total capacity using 2 3/4-inch shells including 1 in the chamber, When using 3" shells you lose 1 shell capacity. When using 3 1/2" shells you lose 2 shell capacity.**
Specifications:
- Model - 04508
- Capacity - 7
- Length - 5"
