Advanced Technology Triton

Winchester 7 Shot Fluted Aluminum Mag Extension w/ Swivel Stud Cap Expand your Round Capacity to 7 shots with ATI’s Aluminum Mag Extensions for 12 Ga Winchester 1200/1300 Shotguns.

- Holds an Additional 2 – 2.75” Shotgun Shells
- Constructed of Military Type III Anodized, 6061 T6 Aluminum
- Virtually Indestructible
- Minimum Barrel Length of 18.5” for 7 Shot Extension
- Includes Magazine Spring
- Easy Installation
- Ratchet Base for Tight Fit
- New Fluted Design
- Includes Mag Extension Swivel Stud Cap
- Outside Diameter of the Extension is Engineered to Match the Diameter of the Shotgun Barrel Lug
- Manufactured in the USA