So I just purchased a G2X Pro and was curious as to what the number etched under the D is? This is my first SureFire so I just want to make sure I actually received an authentic light. Also, any tips on identifying counterfeits?
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The 600 lumens version has a serial number etched on the head. The older 200 and 320 lumens don't have it, only A/B/C/D.
The first 200 lumen version had A for the tactical version and B for Pro. The 320 lumen version had C for tactical and D for Pro. The 600 lumens keeps C/D but adds a serial number.