The Diana Twenty-One FBB, featuring the Diana 4x32 rifle scope, is an advanced version of the popular Diana Panther 21 model. With its newly designed Fluted Bull Barrel, this air rifle continues to impress with its modern aesthetics, exceptional precision and outstanding value. It is equipped with a metal trigger and automatic safety for reliable performance, along with a milled 11mm prism rail for mounting optics. The rubberized butt plate ensures a comfortable, secure grip, while the muzzle's silencer-inspired design enhances its stealth. High-contrast, adjustable TRUGLO fiber optic sights provide clear targeting and the rifle is suitable for both right and left-handed shooters. With its combination of innovative features and affordable price, the Diana Twenty-One FBB is a top choice for airgun enthusiasts.