needle-boltn.rare the bolt which carries the needle in a needle-gun.
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society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > parts and fittings of firearms > [noun] > lock > needle
needle1818
needle-bolt1868
1868 C. B. Norton & W. J. ValentineRep. to Govt. U.S. on Munitions of War at Paris Universal Exhib. 1867 24 The catch h is drawn down sufficiently to allow the needle-bolt shoulder a to pass over it.