Agency Arms Patents The ‘Accelerator Cut’

Polymer framed pistol modifications have become big business in the last decade. Between stippling, reductions, finger groove removal and other alterations, framework can cost upwards of $500. And if you add in slide milling for optics, added grip surfaces or just plain old beauty┬ácuts, a complete pistol that normally costs $500 can end up pushing the $2K mark. So it’s no surprise that the larger custom houses like Agency Arms have begun to protect their designs through the use of patents.

Known as the ‘Accelerator Cut’, Agency Arms just received an approval for an ‘ornamental design for a portion of a handgun frame, as shown and described’. From their site:

We remove the finger grooves, add “Accelerator Cuts” to the front of the frame, and bevel out the inside area of the trigger guard on a mill. Accelerator Cuts, an after-market weapon customization service, offer enhanced traction on the pistol. With the Accelerator Cuts, muzzle rise is dramatically decreased and follow up shots are faster. We do a non traditional double undercut and dock the front of the trigger guard for aesthetic purposes. We finish the frame off with full stippling and offer Gen 4 back strap melding as well for no additional charge.

My limited knowledge of the ‘Accelerator Cut’ had included the belief that it provided a raised surface to apply forward, stabilizing pressure with the shooters support thumb. The idea is reminiscent of the gas pedal designs applied to some competition pistols.

Which could be why Agency Arms’ patent is for an ornamental design and not purely functional – I’m not sure if someone has previously patented the gas pedal design and I’m certainly not an intellectual property attorney, but the possibility of legal conflict remains.

Let’s say a builder Salient Arms International or ATEI decides to stipple a design close to the Accelerator Cut, will Agency pursue damages for violation of patent law?

Agency Arms Accelerator Cut

CLAIM The ornamental design for a portion of a handgun frame, as shown and described.


Accelerator Cut Patent


Other patents obtained by Agency Arms:




Some of these custom Glock builds are awesomely crafted, and awesomely out of my price range.


LE – Science – OSINT.
On a mission to make all of my guns as quiet as possible.
Twitter: @gunboxready
Instagram: @tfb_pete


  • Matt

    patented stippling…lol wut… will they think of next

    • derpmaster

      What were they even thinking patenting something so minor? Nobody is ever going to bother copying this.

      • FightFireJay

        I dunno…
        Bushmaster blatently ripped off Daniel Defense’s ad campaign, and was promptly sued.

        Remington blatently ripped off DD’s naming scheme, and was promptly sued.

        Especially for smaller companies, maintaining their unique qualities in a crowded industry can really make a difference.

      • Ace Mcmac

        You kidding? This is a common modification. A lot of people do this. I did it to my glock.

        • BaconLovingInfidel

          Please send a check for $50 to Agency Arms.

  • TheNotoriousIUD


  • txJM

    Supporting material includes a YouTube video of an airsoft replica. You can’t make this stuff up.

  • It is a design patent, so they aren’t patenting the idea just that exact design. If you can create the same features with a different design none of Agency’s IP is infringed.

    • Cory C

      But your comment is too rational and well thought out. Can’t you see we’re on the outrage bandwagon?

      • somethingclever

        I’m reading less outrage and more “wut?”

        • Cory C

          I’m just funnin.’

    • Harry’s Holsters

      I’ve seen a lot of guys claim to be doing this before agency. If that is the case will they be able to defend the design patent?

      • BaconLovingInfidel

        They’ll have to meet up at high noon and hammer it out with high tech custom Glock warfare.

  • JumpIf NotZero

    Do you like pushing your gun left or right of the target? No? Too bad.

    • BlueMarlin Blues

      My first thought. I shoot pistols thumbs off

    • Wow!

      This kind of stuff isn’t new but it does help. Your thumb doesn’t put isometric tension on it, it just bumps it as the gun recoils which arrests the muzzle climb a bit. If your firing hand grip is sound, the sights won’t move horizontally.

  • BattleshipGrey

    There seems to a push to make named aftermarket concepts. Kind of like Cooper’s scout rifle. More recently we have the Roland Special and this attempt at marketing a stippling job, the Accelerator. All of the concepts seem to have one thing in common, throwing money at $500 guns.

    • Jared Vynn

      I feel like “the Roland Special” was just an attempt to capitalize on the concept of race guns and tacticality.

  • DMZ

    Good thing that $2k Glock shoots four times better or this would be completely retarded!

    • Sunshine_Shooter

      You only drive a bone-stock Honda Civic and wear New Balance shoes, right?

      • Cymond

        I drive a bone stock Toyota and wear Columbia sandals. Does that count?

        But seriously, I have customized all of my guns, at least a little.

  • Brian

    Jump the shark.

  • 7n6

    This better be for airsoft stuff or people anyone ripping off their trade name. If not,Glock needs to sue these guys for infringement.

    • ShootCommEverywhere

      Humorously enough, the “Accelerator” patent sites the youtube channel of one of the largest and most popular Airsoft retailers, RedWolf.

  • Hoplopfheil

    Taurus beat them to the punch with “memory pads” about a decade and a half ago.

  • Sam

    What a joke.

  • Felix

    So the patenting races begin

  • Bernardo Costa

    Just no.

  • OG_Locc

    So have they started having lawyers send out nastygrams to any of the other custom guys yet?

  • Gary Kirk

    Cool, now’s I can patent all that things I’s did ta mah guns whit muh Dremel.. Gone makes me some moneys now Jack..

  • Rule10b5

    I’ve never even heard of these guys even though they’ve been around for over a year; I guess I’m not an operator.

  • emgee

    These folks are hacks!!!!! This has been done long before they were in biz!!!! I gues in their eyes, it is ok to try to steal someone else’s ideas and then try to lock everyone, including the originators, from doing it!!!! Unfriggin believable!

  • Keiichi

    Regardless of the patent discussion… looking at the edges machined into the slide, in the last picture, right where your fingertip would be… isn’t that a concern for slide bite when using the “Accelerator Cut” as designed?

  • HemingwaysBeard
  • FOC Ewe

    Next in the lineup of protected ornamental designs: The Operator Shroomstamp Cut.

    10 years ago it was almost too ugly to own and now melted plastic is more snobbish than owning a Wilson or Ed Brown.

  • John

    I’ve seen this around years ago. How did they even get the ornamental patent?!

  • Cory C

    Am I missing something or is this a left handed model? Because that “accelerator” is where your weak hand thumb goes, right?

    • FightFireJay


      • Cory C

        Ahh. That makes sense.

    • noob

      there might be a cut on the opposite side too.

  • Matt in Co

    Well, at least you’ll be able to spot your pistol when you have to drop it in the dirt during a Tactical Response class

    • Sunshine_Shooter

      If you spend $2k on a pistol, you’re beyond a Tactical Response class.

      • Disarmed in CA

        Might need a Tactical Budget class though

  • One poster already pointed out the issue with gas pedals being the introduction of an extra torque plane. Best to keep it 2D if you can.

    But that would leave one to wonder if you couldn’t angle it up a bit to vector out some of the lateral torque you induce…

    Nah, best to Captain of crush your way out of this 9mm problem.

  • If that hot mess OctoGlock stippling is what they call “beauty and functionality”, I’d hate to see what they think is ugly and useless.

  • noob

    somebody needs to make an opensource glock – such that 80% frames don’t end up being patented out of existence by IP trolls.

    The original glock patents from 1977 should be expired by now, so all that remains is to patent the decorative aesthetics of a derivative and and then GPL them so everyone can use and extend on them. also full instructions on machining the metal components, making the molds for cold cure fiber reinforced or metal machined frames and the recipe for the all important nitride bath treatment.

  • USMC03Vet

    $2k Glock.
    Divided by zero MoA achieved.

  • Klaus Von Schmitto

    Seems like perfection gets better everyday.

  • Alan

    CZ P-07 and P-09 have stippling in this area as a reminder to keep your trigger finger pad pointed down the barrel when the sights are off the target.

  • baserock love

    Lifelong sig fan here, finally got a glock 17 just to see what all the fuss was about. After getting the minus connector for it, i honestly shoot the thing and i can’t really think of any reason i’d want to mess with it. Now i got two.

  • M1911

    A fool and their money are soon parted…

  • Some Rabbit

    Of course they’ll sue for infringement. There aren’t enough rich dufus Glock owners to keep them solvent, so they play patent troll instead.

  • Bradley

    Design patents are pretty limited. All you would have to do is shape it slightly different. I think it would be more valuable as a way to take action if someone starts trying to pass work off as theirs.

  • Harry’s Holsters

    I have these on one glock and they really don’t do any good for me. To take advantage of them I have to get a lower grip with my support hand. If someone has hands that just fit right than I can see it being worth while but after shooting the gun a lot I don’t get any benefit from the cut. I imagine 90% of the population would have similar results.

  • Bigg Bunyon

    The “Accelerator” cut. Makes me think of John Creiton’s pistol “Winona” … or a 1911 “idiot mark” depending on frame of mind. No pun intended.

  • mouse

    Sounds reminiscent of the Metallica E-F chord progression trademark hoax

  • koolhed

    “…muzzle rise is dramatically decreased…”

    Emphasis on “drama.”

  • Hem90

    Compulsive bashing aside, my understanding is a gunsmith in Hawaii was trying to patent their design so they beat him to the punch so they didn’t have to pay him royalties or whatever.

  • Chuck Denise Bowman

    “Move along folks, nothing to see here”

  • Colonel K

    I don’t know how you can patent something already in common use. Perhaps they are addressing a specific cut pattern they consider unique. Simply having a patent doesn’t prevent any competitors from marketing their on products and services. All it does is give you a leg up in court should
    you decide to sue anyone for patent infringement. And you’ll have to prove infringement to a patent court. Assuming you win, the court will determine the size of the judgment. You’ll still have to collect it, which may prove difficult. All in all, it seems like a lot of effort for little reward, unless their primary intention is to to protect themselves from frivolous suits by other companies.

  • Josh McRoberts

    It’s like Slide Fire claiming to own bump firing.

  • Tonewall Jaxon

    grip tape.