Exploding arrowhead
cults3d
Just put inside blank 9mm. Put some O-rings to grooves for better stick to arrow. Or just put some glue from glue gun to grooves. Glue both body together with some superglue and insure it with some tape. Slide in arrow OD=8.8mm with target tip. From above pour black powder and screw in cap. After impact, arrow tip hit primer of 9mm and explosion ignite black powder.
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