The lightweight Mepro FRBS helps you keep your carbine in the fight.

Whether duty, defense or sport, the AR-15 reigns supreme. The versatile, modular platform enables so much customization. You can simply outfit it to suit nearly any need. And the modularity provides an way to use backup sights. The Mepro FRBS, or front, Rear Backup Sights, provide a viable option.

Mepro FRBS Backup Rifle Sights

Optics go down. And though we enjoy quality riflescopes and red dots like never before, they can still go down. When optics go down, competitors lose points. Hunters lose trophy game. And professionals or defensive users can lose even so much more. So remains a good idea to keep a backup sighting system on your carbine.

The Mepro FRBS comprises a durable, tritium enhanced secondary sight system. It lays flat against the Picatinny rail to remain low profile. Then users simply pop it up instinctively when needed.

The FRBS utilizes fiberglass reinforced high-grade polymer and metal. It includes a rearward operating spring, allowing quick deployment. Windage and elevation adjustments come easy, with no tools needed. The system provides the only backup sight on the market incorporating tritium into the sights, according to Meprolight. The nighttime illumination proves bright enough to see. but they don’t overpower the sight picture, according to Meprolight. The FRBS comes with either two-dot or four-dot rear sight. Color options include black or tan.

Meprolight extends a 12-year warranty on the tritium illumination. That should keep you in the game, or in the fight, for a long time to come. For even more info, please visit

Mepro FRBS Features

  • Low profile and lightweight design.
  • Can be used as a primary or back-up sight.
  • Manually adjustable, no tools needed.
  • Durable fiberglass reinforced polymer and metal construction.
  • Spring-based locking mechanism – will not break or deform.
  • Compatible with all MIL-STD 1913 Picatinny rails.
  • 12 years warranty for Night Sight luminance.

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