The VICTRA-20 Modular Shotgun Suppressor is designed to be taken apart and configured to your desired length, ranging from the default of 10″, down to 8″, 6″ and 4″. The VICTRA-20 ships with the 10″ Assembly Rods, so here we have the set of 8″, 6″ & 4″ for you to have full access to modifying your V-20 suppressor to any length you wish. The kit ships with a pair of each length. Re-configuring the suppressor to a smaller length will have an effect on weight as well as decibel rating. VICTRA-20 10” Configuration (OAL 10.4”) – Weight 22 oz. – Ear average 132 dB VICTRA-20 4” Configuration (OAL 4.4”) – Weight 12oz. – Ear average 138 dB YHM does not recommend using the 4″ assembly rods with the VICTRA-12. Lengths: 8″, 6″, & 4″ Material: 17-4 Stainless Steel Finish: Natural Stainless MADE IN U.S.A.