The Abraxas (tm) family of suppressors would appear to be the most successful military issued pistol suppressor ever. The AWC Titanium Abraxas was built under contract for the U.S. Army for use on the Glock 26 and Glock 19. The Stainless steel version was contracted by the U.S. Air Force for issue to it's Special Warfare operators. The early Warp 6 variant was specified for use with the U.S. Navy. There is a significant reduction in weight compared to the stainless steel version of the Abraxas.
The Titanium Abraxas is highly compatible with Glock .40 caliber pistols, and many others. The Recoil Regulator is not required with a Glock pistol to function reliably in semi-auto mode (barrel fitting may be required). Other 9MM pistols may require the Recoil Regulator for reliable semi- auto function.
