The Liberty Torch QA version of the torch is a rapid attachment design that is intended for quick deployment when suppression is needed rapidly in special situations. The mount replaces the original washer that fits between the flash hider and barrel shoulder. We designed it to where any normal flash hider on the market today will fit and the suppressor will still work fine. The A1 flash hider in this picture shows the mounting scheme. Added length to the weapon is less than 6 inches since it telescopes over the flash hider. Please note that this mounting device will only fit barrels .740" and less in diameter. Your barrel may need to have a special profile machined on it to accept this mount if it is too large.