Meprolight 613256 GLS 400M GLS Self-Illuminated Reflex Sight for 40mm Grenade Launcher w/Top Mount The Meprolight GLS 400M is a self-illuminated reflex sight designed specifically for 40mm grenade launchers, equipped with a top mount. Its innovative design allows for quick target acquisition and precise aiming, enhancing accuracy in various shooting scenarios. The Meprolight 613256 sight features self-illuminated reticles, eliminating the need for batteries and ensuring continuous operation day or night. With its durable construction and reliable performance, the Meprolight GLS 400M is a valuable addition to any grenade launcher setup..yellow-box p {font-size:16px}.special-tab {color: #FFFFFF}.yellow-box ul li {font-size: 16px;}Meprolight's Mepro GLS (Grenade Launcher Sight) is engineered to tackle longstanding accuracy challenges in grenade launcher optics. Meprolight Mepro GLS Featuring adjustable elevation and an integrated compensating system, it effectively addresses projectile spin drift. With generous eye relief, operators can acquire targets with both eyes open, enhancing precision and hit probability. Its user-friendly design simplifies aiming—simply place the reticle on the target and fire. The innovative dual self-illuminated internal power system ensures uninterrupted operation for years without batteries, suitable for day or night use in any weather condition. Furthermore, it offers versatility with various mounting hardware options for side or top rails, accommodating diverse tactical setups. Features of the Meprolight Mepro GLSAdjustable for elevation and compensates for projectile spin driftLong eye relief for use with both eyes openDual self-illuminated internal power systemAvailable with various mounting hardware Meprolight GLS 400M GLS Self-Illuminated Reflex Sight for 40mm Grenade Launcher w/Top Mount 613256