Sightmark SM39001 Boresight Red Laser 223 Rem/5.56x45mm NATO Brass

The Sightmark SM39001 Boresight is a chamber-insert red laser boresighter purpose-built for fast, accurate zeroing of 223 Rem and 5.56x45mm NATO rifles. Designed to drop into the chamber like a loaded round, it projects a precise red laser dot downrange so you can align your iron sights or optic to the rifle's true point of aim without burning through live ammunition.

Constructed from brass, the SM39001 is built for durability and a precise chamber fit inside 223/5.56 chambers. A red laser module is powered by three included AG3 batteries, and the package ships complete with a carrying case so you have everything needed to start boresighting right out of the box. The compact, cartridge-style body is lightweight and easy to pack to the range.

Whether you are sighting in a new rifle, confirming zero after a scope swap, or just touching up an existing setup, the SM39001 significantly reduces wasted cartridges and shells by giving you a reliable reference point before you ever pull the trigger on live ammo. It is an ideal accessory for hunters and law enforcement.

This new Sightmark boresighter is factory packaged with the included battery pack and carrying case, ready for immediate use.