MBUS 2 Front Back-Up Sight Kleur:Dark Earth both old and new ST top mounted lever switch

MBUS 2 Front Back Up Sight Kleur:Dark Earth both old and new ST top mounted lever switch both old and new ST stylesCantilever mount positions light further forward providing more room with shorter Hand Guards Made in the USA NOTE: Kit is specifically designed for MOE and ACR Hand Guards and is NOT compatible with other makes GBB valves Features Impact resistant polymer construction provides light weight and resists operational abuseSpring loaded flip up sight easily activated from either side or by pressing the topDetent and spring pressure keeps sight erect but allows for unobstructed folding under impact folding back up sight