Because, why not binary? - Fostech Echo AR-II Drop-In Binary AR-15 Trigger

I’ve compared the Fostech and the Franklin side by side and shot by shot. Both are very nice triggers and function well so long as the rest of your rifle is set up to accompany the action. The triggers do not function in the same manner however. The Fostech (in Echo mode)requires a more full motion of the trigger. The reset for the second shot is located near the far back end of the trigger action range. If the trigger is not pulled back far enough to reach that point the second shot will not release when the trigger is let forward again. Then the trigger must still be pulled back beyond that point before the next round will release. It’s not ideal but this does eliminate the issue of finding the “sweet spot” in the trigger action, where the hammer doesn’t catch and will follow the bolt (hammer follow). The Franklin (in binary mode) has a much closer action but hammer follow is a known issue. Light strikes occur and a round must be manually cleared. In the end I’d go with the Fostech if you don’t mind the trigger action being soo big (Echo mode only)... I just wish they made a straight trigger version, I really like the feel of the Franklin straight trigger action.