In yet another “I can’t believe its legal” installment from the ATF Technology’s branch, two companies are approaching the market with fire on pull and release trigger systems. Fostech Outdoors (known for their Origin 12 shotgun) and Franklin Armory (for the .17 semi-auto modern sporting rifle) are both readying “binary” (as Franklin Armory is calling it) trigger systems for the general market.

Both companies offerings have been approved by the ATF for meeting the definition of “semi-automatic” despite having two shots per “pull” (at least in the conventional sense) of the trigger. To meet the ATF’s requirement, specific movement is required to release both shots and the cycle can be broken by switching the trigger packs back to semi-auto.

Military Arms Channel was able to get its hands on Franklin Armory’s offering, The Binary Firing System. The system is perfectly functional, but ran into Mac’s uber-fast trigger finger out-running the bolt going home on the release side of the firing sequence. Dissapointing, as I would hope Franklin could figure out a way to use an M16 carrier to trip a sear allowing the shooter to release the shot only after the bolt goes into battery.

Fostech’s trigger, The ECHO, will be available for demonstration at SHOTShow. Representatives have confirmed it will be available for shooting at a private event Thursday night. TFB will be coverage at the event and you can bet we’ll be making a bee-line to Fostech to put the booger-switch through its paces.