The Nordic Components MXT 12GA Shotgun Magazine Extension Tube +4 Kit (MXT-TBS-12-4K) increases the existing shotgun capacity and from 6061 aluminum that is anodized. 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.
- Anodized 6061 aluminum for strength and weight
- Features relief groove to eliminate barrel clamp travel and ensure repeatable placement after disassembly (+2 through +9 extensions only)
- Relief groove located off-center to allow location adjustment by reversing the tube
- Machined with matching thread pitch on both ends to allow reversing the tube
- Extension Tube
- Tube Cap
- Full-length Spring
Note: Requires an MXT extension tube nut to be installed on your shotgun (NOT Included).
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