Gun Shot Residue Single Element Kit Back Catalog number: 52257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11196.4-2K-ME 5-Flucytosine,2000 µg/mL,MeOH,1mL, Price on request 56074 Tungsten (W) Price on request 72470 Abamectin Price on request