Slide Fire SSAR-15 MOD

Slide Fire is a Texas-based company that was started just a few short years ago by a USAF veteran, and in those years they’ve grown substantially. The company is known for their Slide Fire stocks, which are often referred to as bump fire stocks, but they go beyond simple bump fire. The way they’re made allows for significantly greater accuracy and control than with traditional bump fire, something I can attest to having used them myself. A great deal of time and effort went into these stocks, in fact, when Slide Fire was designed by founder Jeremiah Cottle it had to be approved for sale by the BATF. Cottle says the “honor, commitment, and perseverance” of the United States military is something he takes to heart and puts into his products, and in 2015 he has a new stock that promises to go beyond the success of previous models.



The new model is the SSAR-15 MOD. According to Cottle the company took customer requests and feedback seriously when designing this new model from its adjustability switch, which allows length of pull to be adjusted between 6 positions, to its ambidextrous finger rest. Other features include a sanoprene butt rest and grip and semi-auto and lockdown switches, the latter of which keeps the stock solidly in place when it isn’t being used for rapid fire. The new stock mounts comfortably to your shoulder and promises to deliver even greater control than its predecessors. It’ll be made for ARs and AKs and is set to hit a gun store near you in late May 2015. MSRP $299.


Visit the company’s website at:

TFB Staffer

TFB Staff, bringing you the latest gun news from around the world for a decade.


  • Plumbiphilious

    That…that actually looks really nice! You can definitely see a aesthetic relationship to the Magpul UBR, but dare I say it, it’s maybe even slightly sleeker.

    • Vitsaus

      Looks to be more or less a copy of the UBR but with aesthetic changes in an effort to avoid litigation

  • Name

    They should make something for the civvy M249 – allowing for full auto fire from bipod or a vehicle mount. That would make both of these things reasonable.

    The stock looks good IMHO.

    • The weight may prohibit this system from working with such a firearm. The recoil needs to sufficiently move the firearm rearwards in order for it to function properly, and the heavier the firearm the greater chance of that proper amount of travel being prohibited increases. As a frame of reference, I have seen a slide fire stock not run well on an old Colt HBAR (the lighter the gun the more the gun will recoil into the stock, aiding in reliability).

      • G0rdon_Fr33man

        I´d argue that would depend on the trigger pull. Light trigger, short reset etc might make it work…

        • If it does not have enough umph to pull your finger off the trigger and reset it, then it will not work.

          • Tassiebush

            Hey Alex, how does the slide fire system compare to actual full auto in performance?

          • It doesnt really. One is too focused on trying to make the rifle cycle, which has a bit of a learning curve. I have tried to teach many people how to use the slide fire and they have just not been able to do it. It is a simple concept that is possible to master, but simply holding a trigger down it’s much easier.

          • MR

            How heavy is your rifle? Mine isn’t necessarily a lightweight, but a gov’t profile barrel, basic A3 style receiver and free float tube allow me to get pretty good strings of fire without much effort. Avoid any muzzle device that might act as a brake, of course. I’m looking at enlarging my gas port, mostly to tune my “brass arc”. I’ve got another rifle that tosses the brass to about the 2 o’clock position, and I just get a kick out of seeing that out of the corner of my eye. Might as well get the most out of my entertainment dollar, even if it results in increased maintenance.

      • noob

        would some kind of muzzle booster help?

        • I theory I suppose. Hell, a muzzle brake in reverse would do it.

          • AD

            I’m no physicist, but doesn’t a muzzle break just redirect some of the gases that are flowing forwards so they flow sideways/backwards instead? Therefore a “muzzle break in reverse” is directing gases forwards, which is exactly what a normal barrel does anyway, meaning that there’s no way to configure a muzzle break to increase rearwards recoil (perhaps upwards, but not rearwards)?

          • MR

            Look at a rocket nozzle. A cone, like a Grease Gun flash hider might help accentuate the fluid dynamics of gasses exiting the barrel. Or perhaps a 50 Cal style brake, turned around. On my AR, I’m considering enlarging the gas port to impart more energy into the bolt/buffer group, increasing felt recoil and improving function. Maybe.

          • Indeed, but look at a barrett M82 brake and notice how it is sloped rearwards. If you inverted that and redesigned it in such a way that gases were vented violently forward, it would increase recoil.

  • Joe

    It looks good.

    Should have made it to accept all common stocks and pistol grips.

    Everyone gets the personalized accessories they love, and controllable bumpfire.

    The next version, perhaps.

    • pun&gun

      Considering how it moves, I don’t think that’s physically possible.

    • Rusty Shackleford

      The Fostech version looks like it allows you to do that, although the price is $500.

    • MR

      IMO, they should make the pistol grip the same size as normal ARs. The grip on the Gen Ones seems exceedingly large in comparison.

  • ben

    Has anyone ever thought to combine one of these with that tac con assisted reset trigger?

    • Actually it’s been tried and as you might imagine it worked rather well.

      • MR

        Hmm, a $500 msrp trigger and a $300 msrp stock. Keep going down that route, you could pay for a registered MAC 10 and have REAL full auto.

        • jcitizen

          Or just start an SOT manufacturing permit, and make AR lower receivers for whatever caliber upper you want, and then you can destroy them as per BATF procedure after you are tired of playing with them.(Or sell them to another SOT) The key is the cheap receiver, so you don’t throw away a lot of investment in original historic parts sets, that end up getting torched by the Feds.

          • MR

            That would be the ideal situation, sure. Bit more effort than most of us are willing to put forth, jumping through all the hoops and paying all the fees required to receive and maintain those qualifications. Then you have to get rid of or destroy the firearms once you retire or surrender your SOT status (as I understand it). Easier to drop the five-or-so grand on a MAC 10 and jump through the one-time hoop of getting a tax stamp. Think I might pick up a couple more cheap first generation stocks, and tune my cheap bumpfire ARs to work reliably, at least until the NFA is repealed.

  • nature223

    and MAGPUL sues for the looks similarity to a 3…2..1

  • Ed

    How do optics hold up to the recoil impulses generated by this kind of operation? I’m hesitant to spend a bunch of money on sights for a toy, but constantly replacing cheap scopes isn’t a good option, either.

  • MR

    Somebody tell these guys that having an all black product, and wearing an all black outfit, makes for excellent photos! 😉

  • valorius

    These stocks only make sense on a .22LR to me.

    Even with inflated prices, pissing through 30 or 50rds of .22LR in a few seconds is a lot more economically feasible for most than the equivalent amount of 5.56mm ammo.

  • Leigh Rich

    Sure fire got short sheated by bump fire…