Lancer Carbon-Fiber 12 Gauge Shotgun Extension Tubes (LSX) are designed to attach to existing shotgun magazine tubes to provide added capacity to the shotgun.

There are two basic methods of selecting the right LSX: total length and total capacity. To increase the capacity of the shotgun without having the extension tube extend beyond the muzzle, measure from the front of the shotgun's handguard to the end of the muzzle.

Machined aluminum components combined with a lightweight, carbon-fiber tube create a lightweight, durable extension to your shotgun. An extra-long spring is included that can be cut to optimize loading. Extension clamps are recommended for extension tubes that extend beyond the end of the barrel.