The Sparrow-Ti has all of the same iconic features that made the Sparrow 22 a classic, including user-serviceability, stellar sound performance and caliber versatility. But it has one more feature that makes it extra special its completely constructed out of titanium. This material change means that the Sparrow-Ti weighs only 3.8oz, around half the weight of the original Sparrow. Its also finished in a proprietary two-tone gray and bronze anodized finish for a completely unique look. The Sparrow-Ti is rated for .22 LR, .22 Mag, .17 HMR, .17 WSM and FN 5.7×28 calibers. Its full-auto rated with 22LR. Its compatible with Delta Adapters and ships with a Delta Threaded Rifle Spacer in 1/2 x 28.