BSA Optics Laser Bore Sighter Kit with Arbors Heavy Duty Case. With BSA Bore-Sighter Kit BS 30 you can save time and ammunition. BSA Bore Sighter Kit BS-30 has 15 studs for all popular calibers: .177 .22 6mm/.243.25 6.5mm .270 7mm .30 .32 .338 .35 .375 .44 .45 .50 . BSA Optics Bore Sighter Kit BS - 30 comes in a heavy duty hard case. Features of BSA Optics Bore - Sighter Kit BS30: Studs for all popular calibers. Heavy Duty Case Included Package Contents: BSA Optics Boresighter Kit with Studs BS30 Specifications for BSA Optics Laser Bore Sighter Kit with Arbors in Heavy Duty Case: Manufacturer: BSA Optics Fabric/Material: Metal Condition: New Package Contents: BSA Optics Boresighter Kit with Studs BS30 BSA Optics BS30: Laser Bore Sighter Kit with Arbors Heavy Duty Case