LISTER PETTER LD LR SL SR ST STATIONARY ENGINE EXHAUST SILENCER 1.25" BSP | Business, Office & Industrial, Agriculture/Farming, Stationary Engines | eBay! Jul 28, 2020 · This suppressor was featured and tested in Patrick Sweeney's review of the FN 509 Tactical 9mm pistol. Read his review of the FN 509 T here.. There are a lot of new suppressor makers out there, but some of them, while “new” as suppressor makers, are not new to making suppressors. AAC Evolution 45 Suppressor - $479 w/code "WELCOME20". $479.00. To satisfy the requirements of a major U.S. Military Anti-Terrorist unit, AAC has made a number of improvements to the EVOLUTION-45 silencer. The Nielsen Device is now completely integrated within the 1.25 in diameter, aerospace quality aluminum body, yielding a sleek appearance that belies the fact that this is a recoil assisted design.