The PWS MOD 2 FSC556 Compensator features patented design technology that delivers effective recoil reduction as a primary function and flash suppression as a secondary function making it one of the most popular PWS compensators on the market.PWS MOD 2 FSC556 Flash Suppressing CompensatorCaliber: .223/5.56Thread Pitch: 1/2x28Material: 4140 Steel with FNC LIFE HD treatmentLength: 2.3" / Diameter: .863"Weight: 2.3 ozUnique port design keeps flash out of optics and line of sightReduces distracting overpressure common with many compensatorsEngineered for shooters in all situations this compensator provides superior performance for tactical competitive and recreational shooting applications while maintaining optimal sight picture and reducing shooter fatigue.