Grand Power Stribog SP10A3, Semi-automatic, Aluminum Frame Pistol, 10MM, 8 Barrel, Matte Finish, Flat Dark Earth, M-LOK Rail, Manual Safety, 20 Rounds, 3 Magazines 197892004800 Both SP45 and SP10 offer a high degree of modularity, including Picatinny rails at 12 and 6 o'clock and M-LOK slots at 3 and 9 o'clock, which allow for the installation of a wide range of accessories, including red dot sights, hard sights, laser devices, and accessory lights (where legal and permitted). Backup flip-up sights are installed by default.