-Caliber: .22LR, .22 WMR, .17 HMR, .17 HM2 -Overall Length: 5.6" -Diameter: 1" -Weight: 3.7 oz -Materials: Aluminum, Titanium -Finish: Black Matte Hard-coat Anodize -Thread: 1/2 x 28 -Normally $450! The Gemtech ALPINE is a user-serviceable rimfire suppressor that is lightweight and requires no special tools to disassemble. Easy to take down and clean, it features high decibel reduction, unique-to-Gemtech "Caged-K" baffles, which provide the strength needed for disassembly. This allows the ALPINE to still offer the outstanding performance of the K-type baffles but without the weakness of an unprotected K as seen in fragile competing designs. Made of tough 7075 aero-grade aluminum with non-galling titanium thread area, the ALPINE also features the distinctive and functional Gemtech grip surface on the rear which adds a distinctive, elegant touch to this premium suppressor. I can accept a certified check or cash. Insured shipping is on me. On a Form 3 ready to go!