New from Griffin Armaments are the M2 Sights or the Micro Modular Sights... "Griffin armament is proud to introduce affordable Micro Modular Sights™ compatible with Picatinny rail systems. Griffin M2 sights offer an industry first, patent pending, modular base plate system. Constructed from QPQ Treated 17-4 and ordnance grade steel, Griffin M2 Sights were designed to be the correct product for every backup sight application.