The Bond Arrms Snake Slayer IV has a 4.25a ^2 barrel (versus 3.5a ^2 on the standard Snake Slayer). The longer barrel on the SSIV provides tighter shot patterns, higher velocities, and even more manageable recoil than the original Snake Slayer. The Snake Slayer IV will accept all of Bond Arms standard interchangeable barrels and comes equipped with their custom extended rosewood grips for added comfort.FeaturesStainless steel double-barrel and frameCompatible with all standard Bond Arms barrelsAutomatic spent casing extractorPatented rebounding hammerRetracting firing pinsCross-bolt safetySpring-loaded, cammed locking lever