SSK Firearms Fast Discharge Compensator .375 Caliber 11/16-24 Thread. The compensator is designed for hunting rifles/pistols with an unobtrusive diameter at 0.865 and a short overall length of just 2.20. The construction is hardened 416ss with a black nitride finish. Requires Timing Nut. Specifications for SSK Firearms Contender/Encore Fast Discharge Compensator: Manufacturer: SSK Firearms Color: Black Package Contents: SSK Firearms Contender/Encore Fast Discharge Compensator SSK Firearms FDC375: Fast Discharge Compensator .375 Caliber 11/16-24 Thread