Sightmark Universal Boresight

The universal fit is spot-on—the included adapters worked perfectly for my AR-15 and hunting rifle. Sighting in took under five minutes at the range, saving me a box of ammo.

The included adapters fit both my .308 and .223 rifles perfectly, making it easy to switch between calibers. It got my scope on target at 50 yards after just three shots at the range.

Zeroing in my new scope took less than five minutes with the laser, and the built-in magnetic base held it rock-solid on the muzzle. For under $50, this little tool saves a ton of ammo and headache at the range.