Carlson's(R) Magazine Extension is designed for compatible Benelli Nova and SuperNova 12 Gauge shotguns. The extension provides an 8-shot total magazine configuration and features durable steel construction with a black finish. It provides an extended tubular magazine configuration for compatible Benelli shotgun platforms.Key Features Designed for compatible Benelli Nova and SuperNova shotguns Designed for 12 Gauge applications 8-shot magazine configuration Steel construction Tubular magazine extension design Black finishCarlson's(R) manufactures firearm components and accessories with a focus on shotgun applications. The company offers precision-manufactured products designed for compatibility durability and reliable function. Carlson's products include choke tubes barrels magazine extensions and related firearm accessories.