Assertion: scope sight | /r/CapableOf | fit onto the muzzle end of the barrel
Facets:
value: via a bore-diameter arbor
type: MANNER
Source sentences:
text: A more advanced method of boresighting uses a collimator boresighter, an optical attachment similar to a scope sight, which fits onto the muzzle end of the barrel via a bore-diameter arbor and projects a grid pattern onto the sight picture.