6mm biodegradable 0.25 grams 2700 rounds White 5.930mm +/- 0.025mm dia., 5.928mm mean dia. 5.907mm min. dia., 5.947mm max. dia. For precision airsoft use – Made to exacting standards using high-quality materials. Bio-resin research conducted by our research lab in Holland, and manufactured on the most advanced equipment in our plant in Seoul, South Korea.
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