Winchester SXP SX Pump 9 Shot Magazine Extension . These extensions are great for law enforcement officers, competition shooters and home protection.
These kits are constructed of solid steel and come with spring, base clamp (sling swivel loop pictured is no longer included) & follower.
7 Shot Model fits 18″ barrel or longer.
8 Shot Model fits 20″ barrel or longer.
9 Shot Model fits 24″ barrel or longer.
10 Shot Model fits 26″ barrel or longer.