New thinking in suppressor design. 100% New Zealand designed and manufactured. 21 chambers created by three pairs of intersecting helixes to produce this unique arrangement. A product of the latest additive manufacturing technology. Aluminium monocore. Comes with camo cover. Weight 202g L 146mm Dia 34.7mm. Suitable for any 0.22 rimfire cartridge Std thread is 1/2 x 20 UN. Others available on request. Barrel threading, shortening and recrowning services available.