18"/20"inch Aluminum Crossbow Bolts Hunting Arrow Changeable Screw Tip Moon Nock

Nock: Plastic Half Moon Nock (Green). Aluminum Crossbow Bolts. Type:Crossbow Bolts. Arrow Head Weight: 125 grain (+/-2 grain) + Aluminum Insert. Total Arrow Weight：<>about 482 grains (tolerance:+/-3 grain).

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