Add plus one capacity to your shotgun without having to replace the entire magazine tube. Simply remove the existing end cap from your Nordic MXT extension, and replace with the “Plus One” from SBE Precision products. Will sit flush with the muzzle on Mossberg 930 SPX when used with a 2 shot MXT extension tube. Add an SBE Precision Products aluminum follower for ultimate reliability, and safety.
These are direct replacements for the end cap on Nordic Components MXT extension tubes only (same threads on both sides). They will not fit the older style tubes with smaller threads on the front.