MOUNTING Bases REPLACEMENT BATTERIES TG8020B 20mm3-Color(lowmountingbase)–BlackNEW! TG8020TB 20mm3-Color(highandlowmountingbases)–BlackNEW! TG8020TBN 20mm3-Color(highandlowmountingbases)–Black(boxed)NEW! See page 31 for additional specifications. 2 TG8020TB/TBNincludesbothhighandlow mountingbases. TG8020B TG988C — ForallTRUGLO ® Red•DotSights andIlluminatedScopes (2perpack)(3V-CR2032) 5MOACenterDot Actuallengthis2.875"