[ArcticFox1984]

I'm not sure I'de trust it to be true zero just by relative cheapness.

Prolly okay for airsoft use.

a sized plastic attachment goes onto the end, that sinks into the barrel... you twist it on a thread so it'll expand to tightly fit the inner barrel; turn the laser on and adjust your sights.

Problem being that it's supposed to bite the rifling of your barrel which you don't have, so it'll be a somewhat delicate fit...

Also, laser bore sighters are generally designed to be used at 100yards or more and have to be made to high standards so the laser is perfectly true zero.

Additionally these units are almost always 5mw in power, meaning useless in daylight unless you have a highly reflective surface to ping it off of.

High quality ones always include a reflective target with a 1/4"-1" grid so you can line everything up properly and see your dot 100yards off in daylight.


However, you can always use reflective plastic; like you'de find on a bike reflector or the tail lights on your car. These surfaces allow a 5mw laser to be visable at upto 300yards or more.