Franklin Armory | G-S173 Binary Firing System | Multi | Flat Dark Earth

The Franklin Armory Binary Firing System (BFS) trigger and slide is a drop‑in Binary conversion. Position 1: Semi, fires 1 round per pull. Position 2: Binary, fires 1 round on pull and 1 round on release. The release round can be canceled by switching back to semiautomatic while the trigger is depressed. Integrated back‑plate mode indicator. Front and rear tritium night sights. High‑tactile front and rear serrations. Anti‑glare top stripe serrations. Barrel and recoil system not included. Not for 80 percent frames. Binary trigger plus slide for Glock 17 Gen3. Straight trigger profile. Optics‑ready slide; adapter plates sold separately. Flat dark earth. Franklin item 17‑50000‑FDE.