The Norsso Volcano Reptile XP Slide & Barrel Set includes Volcano Reptile XP Slide and one Norsso 3.7" 9mm Bull Barrel. Both parts are machined from 17-4 PH Stainless Steel. FeaturesCarapace style forward top serrations for press check tractionNorsso signature 3D dynamic side windows created from complex CNC surfacingErgonomic forward and top serrations for easier press checks and slide rackingLarge volcano end port providing the furthest possible distance from fulcrumTwo expandable C ports for additional porting capabilitySpear Point style fluting down Volcano Bull Barrel shoulder lengthLarger barrel bore only compatible with Norsso N365XL Bull BarrelsMultifaceted contoured front and rear corners