What do you do when you have the need for speed — for cyclic-rate ammo-to-noise-combversion speed — and your daughters aren’t worth enough at an ISIL slave auction to cover a pre-’86 transferable AR lower? Here’s Military Arms Channel with the latest voodoo AR trigger. This Franklin Armory Binary Firing System trigger fires once on trigger pull, and once on release. As far as the ATF is concerned, that’s two separate actions, and therefore it’s a perfectly legal semi-auto trigger.
You may recall we’ve been here before, with the Tac-Con 3MR trigger. We’ll look at that in a moment, but first, here’s the Franklin Armory trigger in action.
We’d have liked to know a little more about the details of how it works, but that’s not forthcoming in this video. For instance, if you have fired a shot, and then a range officer calls cease-fire, do you have to hold the trigger back while you clear your firearm, or does the safety render the weapon safe enough to clear, while pointed downrange? We don’t know, and he probably didn’t, at the time he made the video. We suppose we’ll have to buy one to try it out.
(Update: The safety works to hold the second round, you just have to hold the trigger and not let it reset while you put the safety on with your off hand. Franklin Armory has posted a video showing this).
The trigger has some training issues or perhaps teething problems. One of the ones that renders this absolutely a range toy vs. a working firearm is that it doesn’t always go bang. Really, the only reason a weapon has a safety-selector system on it is to ensure it goes bang every time the operator wants, and only every time the operator wants. The didn’t go bang happens in at least two cases: intermittently, on first trigger pull, no go bang; and frequently, when an operator’s (meaning rifle operator, not 7th dan ninja) trigger-pullin’ outruns the hardware, the hammer follows the bolt carrier down, and no go bang.
There’s also a mag stovepipe he blames on the (Surefire) mag he’s using, but we do recall that one thing that was very strongly correlated with failure to feed, fire, and extract in the early days of the M16 was a higher-than-designed cyclic rate of fire.
He seemed to think you could train that away, which is interesting, because at the beginning of the video he suggests that this, unlike the Tac-Con, can be used by anybody with little training (and does demonstrate with his cameraman as gun test dummy).
There are two other interesting gadgets in the video, the new Magpul 60-round drum is shown briefly, and there’s a trick QD mount for the Aimpoint PRO made by Kinetic.
For consistency’s sake, here’s MAC’s review of the Tac-Con — you can see he struggles with it, in part because he’s freezing. After that, we’ll have another video of somebody else firing it… who does a little better.
OK, here’s Jerry Miculek firing it. Jerry sounds like he’s firing full-auto even when he’s shooting a Ruger No.1, so he’s pretty quick on this.
Now, the thing is, you can get (or if you’re Jerry, you already are) just about as fast with a good competition trigger, like a Geissele or maybe a Hiperfire. Here’s a comparison of splits on double-taps with the Tac-Con 3MR and the Geissele SuperDynamic 3 Gun, and with an M16 lower, all on the same upper. The results? MG, 0.10 seconds between splits. Tac-Con 0.14 , and Geissele SD3 splits the difference at 0.12.
That’s the equivalent of a cyclic rate of 600 RPM for the MG, 500 for the Geissele, and 430 or so for the Tac-Con. It would be interesting to see if (1) Jerry’s splits were much faster, and (2) how the Franklin Armory BFS stacks up next to these other rapid-fire solutions.
And just because somebody had to do it, here’s a guy who combined the Tac-Con 3MR and a a Slide-Fire bumpfire stock. If you want to hear his opinion of it, there’s about nine minutes of that to the left of where we start you in the video — at the range.
As is usual with these rapid fire gimmicks, there’s a learning curve, but he gets better with practice. At the end, he seems to dump a whole thirty rounds without any snags.
If you want his opinions at length, and a description of how he set it up, just move the video slider back to the beginning.
It isn’t — none of these speed trigger tricks is — something you’d like to use for self-defense, but it’s a great range toy. We’d reiterate that none of these gimmicks is a good idea in a defense gun or officer’s patrol carbine — not even the Geissele SD3, which is a race trigger for competition. Instead, get a Geissele service trigger like the SSA, or its equivalent in another brand you like. You’ll have almost as much speed with more safety and positive control.