Meprolight M21 1x30mm Reflex Red Dot Sight and Fubs Self-Illuminated Flip Backup Sight

Meprolight M21 1x30mm Reflex Red Dot Sight and Fubs Self-Illuminated Flip Backup Sight. Daytime fiber-optic illumination with Meprolight tritium at night, providing an always-on red dot with no batteries. The M21 features a 30mm diameter lens and four amber reticle options: 4.3 MOA dot, Triangle, 4.3 Bullseye, and Open X. The Fubs self-illuminated flip backup sight is low-profile and mounted to Picatinny rails with the provided 2.5mm hex key. The FUBS uses tritium illumination for day or night use and is described as being made of a strong composite material. The combination is designed for AR platforms via standard Picatinny rails.