Meprolight M21 4.3 MOA Bullseye Self-Illuminated Red Dot Sight

Stay mission-ready day or night with the MeprolightA(R) M21 4.3 MOA Bullseye Self-Illuminated Red Dot Sight. Trusted by new and experienced shooters alike, the M21 4.3 MOA Bullseye red dot sight is self-illuminated by day with fiber-optic technology and by night with Meprolight tritium, eliminating the need for batteries. Ever. This optic is always on and at the ready, offering users a wide field of view for quick and intuitive target acquisition. Backed by Meprolight’s Meproguard Warranty. 10-year warranty on Tritium.