TD-SF1 a SureFire x300 Key for P356 XL

This only works for the Surefire x300 lights with the ' T-slot thumbscrew clamp ' (see listed lights below) and our P365 XL Tactical Application Rail and ProLedge XLTAR. If you are familiar with these inserts they act as a 'stop' and a 'indent' Install: Same way you install the inserts that come with this light. Tested Lights: (basically any with T-slot thumbscrew clamp) SureFire x300U-B  Not Tested: (same design as above) SureFire x300V-B  SureFire x400UH  SureFire x400V  SureFire x400VH SureFire XH35  SureFire XH30 NOTE - Your only buying the small insert not the light or the gun or anything else.