LaserMax LMS319C Battery Pack Guide Rod Laser Silver 1.55 Volt 20 mAh (1) Single Pack Glock/Sig Sauer/Springfield XD

319 replacement batteries for guide rod lasers that fit Glock 26/27/29/30/33/36/39; Sig Sauer P239/P245; Springfield Armory XD 3" Sub-Compact/4" .45 ACP. Approximate 5 year shelf life.