Tube extensions for Winchester SX4

A tube extension adds rounds to the SX4 magazine tube, giving you more capacity before the first reload in a stage or hunt. In 3-Gun and IPSC Shotgun competition, more rounds in the tube means fewer interruptions and more flexibility in load planning -- the factory tube was sized for hunting, not a competition target layout. The SX4 uses its own thread specification, separate from the SXP pump variant.

Confirm the SX4-specific thread specification and rounds added on the individual product page before ordering.