This kit is designed to bore sight most major pistol calibers.  It includes:

-BS9 standard bore sight

-BS30 standard bore sight

The following 5 arbors to fit the BS30 30 carbine laser bore sight (sleeve that fits over the laser to fit the chamber of the following calibers):

-AR38

-AR44REM

-AR45COLT

-AR45ACP

-AR500

**The arbors fit the BS30 bore sight**