Product DescriptionThe Aimshot BS223 Laser Boresighter makes sight-in fast and economical by projecting a precise red laser from a brass, cartridge-style module that fits directly into your rifle's .223 Remington chamber. Serving as the foundation of the AimShot modular bore sight system, this unit can be paired with optional arbors to bore sight many other rifle calibers. It includes button cell batteries and delivers a bright 650 nm red beam for quick zeroing at home or the range.Product HighlightsChamber-fit .223 Remington laser boresighter for fast, accurate zeroingBright 650 nm red laser helps align optics without firing live roundsDurable brass cartridge construction designed for repeated useModular system works with AimShot arbors to adapt to other calibersIncludes three L736 (LR41) button cell batteries with approx. 10-minute runtimeSpecsCaliber: .223 RemingtonStyle/Mount: Cartridge; chamber-fitMaterial: BrassLaser Wavelength: 650 nm (red)Battery: (3) L736 button cells (LR41)Approximate Runtime: 10 minutesModel: Modular Bore SighterBrand: AimshotMPN: BS223UPC: 669256002239Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.