The A3 Industries lower is designed to use the popular and well established AR triggers, selectors, and grips. These AR features bring almost limitless possibilities to your Stribog platform, allowing the user to customize the Stribog to suit their individual tastes and shooting preferences.Additionally, this lower is designed to use the widely trusted CZ Scorpion magazine rather than the original Stribog magazine. The Scorpion magazine has a proven track record of delivering more consistent feeding and generally performs more reliably across a wider range of ammunition types and brands.Lowers ship complete with a hybrid machined aluminum/hardened steel bolt release lever, A3 Industries TRI-Lever polymer mag release, new bearing detent takedown pins, new 1/4" grip screw, and a selector detent with spring. Lower is manufactured from injection-molded Zytel polymer with 30% glass reinforcement.