BSA Bore Sighter .177 Cal - 50 Cal Caliber_45 Auto Rim PERFECT SEALING and fit into

PERFECT SEALING and fit into the chamber due to flexible brass material

Ergonomic plastic handle

1/4 MOA precision finger click adjustments for windage and elevation

The Pro-Shot Benchrest Quality Pistol Bore Brush is exceptional for bore cleaning with superior cleaning ability and it will not harm the bore

while keeping the bullet subsonic

BSA Bore Sighter .177 Cal - 50 Cal Caliber_45 Auto Rim PERFECT SEALING and fit intoThe BSA Boresighter makes sighting in a gun much easier by aligning a scope's reticle with the barrel, getting you on paper before you even get to the range. It comes with 15 arbors for use with rifles. Works for 177 pellet guns (not for 17 rimfire or centerfire barrels) all the way up to 50 caliber. Includes a protective hard plastic case. Includes: 15 Arbors in calibers: . 177 (Will not fit . 172 groove diameter rimfire or centerfire barrels.