Upgrade your precision and efficiency with the AimShot .223 20X Modular Laser Bore Sight-the latest evolution in laser bore sighting technology.Designed around AimShot's patented and proven chamber-based system this premium-grade tool delivers unmatched accuracy extended runtime and true modularity making it a go-to solution for both professionals and enthusiasts.Built from durable brass and chambered to match .223 Remington rifles the AimShot 20X is compatible with a wide range of calibers through the use of optional AimShot arbors-allowing you to bore sight multiple calibers with a single unit.Whether you're zeroing in a .308 .243 or other rifle calibers simply pair the .223 laser with the appropriate arbor for seamless cost-effective precision.The defining feature of this upgraded version is its modular battery pack. Use the included watch batteries and end cap for compact convenience or switch to the external AAA-powered battery box (also included) for over 20 hours of continuous runtime.The external pack includes a magnetic mount for secure receiver placement and a tactile on/off switch for easy control-giving you maximum flexibility at the range or in the field.The brighter 20X red laser rated at 632 nm wavelength offers superior visibility even in full sunlight or at extended distances-giving you pinpoint accuracy and faster optic alignment with less wasted ammo.Compact lightweight and incredibly reliable this bore sight is trusted by firearms manufacturers competitive shooters and military professionals worldwide.Features / SpecsCaliber Compatibility: .223 Rem (compatible with other rifle calibers using AimShot arbors)Laser Output: 632 nm red laser - 20X brighter for enhanced visibilityMaterial: Precision-machined brass housingBattery Options:Compact end cap with included watch batteriesExternal battery pack with 2 AAA batteries for 20+ hours of runtimeMounting: Magnetic base for secure attachment to the firearm receiverControls: Easy-access on/off switch on external battery packCompatibility: Works with AimShot rifle arbors for multi-caliber useUse Case:Ideal for huntersCompetitive shootersLaw enforcementMilitary professionalsIncludes:Bore sightEnd capWatch batteriesExternal battery pack with 2 AAA batteriesCarrying case