$65.00 – $140.00
NOTE: This product requires an MXT EXTENSION TUBE NUT to be installed on your shotgun — This tube kit will not attach without the nut.
Visit this page for information to ensure you order a complete kit assembly.
NOTE: Be aware that Semi-Auto shotguns have magazine capacity limits. Adding a tube to a semi-auto may make it a prohibited device.
A permanent plug for Semi-Auto shotguns will be required for the longer extensions. We can fabricate and install an aluminum rod that goes inside the spring and is attached permanently to the end cap to comply with legal magazine capacity limits. Select this option if you wish to have us fabricate and install a permanent plug.
MXT shotgun magazine extension tube kit for increasing magazine capacity. Used in conjunction with the MXT extension tube nut, this tube kit will add the stated number of rounds (+1 to +9) to your existing magazine capacity. All capacities are measured using 2.75″ star-crimped shells; for use with 3″ or 3.5″, increase your selection by one or two rounds.
Kits ship with extension tube, tube cap, and full-length spring (+1 tubes have an integral cap and will not include a separate cap). To determine the length of the extension in relation to your shotgun, visit the MXT Fit Guide.
Note: May require modification of shotgun for installation and/or proper function. Any spring/follower retention devices will have to be removed to allow extension to function.Most Remington shotguns will have dimples in the factory magazine that will need to be removed.
|Dimensions||14 × 3 cm|
1, 2, 3, 3B (for flush fit on 18.5" bbl Benelli M1, M2), 4, 5, 5B (for flush fit on 21" bbl Benelli M1, M2), 6, 7, 7B (Benelli M1, M2 with 26" bbl – extends past bbl .750"), 8, 8B, 9