Tactical Solutions SBX Takedown Barrel, 16.5, Matte Finish, Threaded, Fits Ruger 10/22 Takedown TDSBX-MB The SB-X .22 LR barrel is compact and lightweight; the perfect premium replacement for the heavy factory barrel. The bore length of the SB-X barrel is 12.375" and with the permanently affixed shroud" the overall length increases to a legal 16.625" barrel" thus giving the shooter all the benefits of an SBR* with NO paperwork. This rimfire barrel is threaded and the shroud is designed so any 1" or smaller diameter suppressor (threaded 1/2"x 28) should fit and will maintain a compact overall length. Add the SB-X to your 10/22 Takedown(R) and make your rifle the perfect packing/prepping companion.