Aim Sports PJBS3006 Laser Bore Sight .30-06/.25-06/.270 Win 635/655 nM Wavelength
http://www.tandktactical.com/shop/815879011503-aim-sports-pjbs3006-laser-bore-sight-30-06-25-06-270-win-635-655-nm-wavelength-11461
http://www.tandktactical.com/web/image/product.template/11461/image_1920?unique=b0779d8
These Cartridge Laser Bore Sights come in many different gauges and calibers. They have a brass case and a 5mW red laser.
