AFTE Store - Underside Ejector Marks From Glock Pistols

Two types of pistols – Glock and S&W Sigma are very easily confused in attempted identifications via their expended cartridge cases. We have found a definitive difference between the two types of pistols via the underside ejector mark present on cartridge cases discharged in Glock pistols and absent on cartridge cases from S&W Sigma pistols. Testing of various models and calibers of both Glock and Sigma pistols has been undertaken to verify this.