The LaserLyte Laser Cartridge Trainer for .45 ACP offers unmatched versatility with dual-purpose functionality for both bore sighting and dry fire training. This innovative cartridge features red laser technology and swappable end caps for maximum training flexibility.LaserLyte Laser Cartridge Trainer for .45 ACP caliberDual-purpose design with two swappable end capsRed laser bore sight cap with constant ON feature for accurate sight alignmentFiring pin activated laser trainer cap for dry fire practiceCompatible with all LaserLyte electronic targetsBatteries included for immediate useEasily drops into chamber without damage and aligns to borePerfect for shooters who want to sight in their iron sights laser sights or optics without going to the range while also providing comprehensive dry fire training capabilities for skill development and practice.