magpul logo

Magpul Sues ProMag, Plinker Tactical, Others

Magpul Industries filed four lawsuits in US District Court of Colorado claiming patent infringement.

The lawsuits, filed on July 25, name the defendants as Big Rock Sports (dba Swamp Fox Combat Gear), Brookshire Tool and Mfg. Company Inc. (dba ProMag Industries), Cole Industries and Plinker Arms (dba Plinker Tactical). Magpul claims the lawsuits are “…the largest and most significant to date brought by Magpul…”

What appears to be at the heart of the lawsuits are alleged infringement on US Patent #8,069,601. Magpul secured that patent for a rifle magazine, the basis of the PMAG or some variation thereof.

Magpul PMAG patent art
Artwork from Utility Pat. No. 8,069,601

These kinds of lawsuits can often take years to resolve. How back-logged the court is, as well as how motivated the judge and involved parties are to resolve the issue, plays a role in how quickly these will reach a conclusion. Speaking with a former trial lawyer on the subject, I was told that getting to trial within a year would be very fast, and that it is not uncommon to see lawsuits such as these take several years to resolve.

Magpul PMAG patent
Artwork from Utility Pat. No. 8,069,601

Magpul Lawsuits: Additional Details

magpul logo

Magpul filed lawsuits against four manufacturers as I reported last week. Those lawsuits all allege patent infringement related to AR-15 magazines.

Reading the complaints filed in all four cases, Magpul cited a total of six different patents they allege have been infringed. One of those patents, US Patent No. 8,069,601, is listed in each of the complaints, while the others are limited to specific cases.

The complaints do not list the specific details explaining how Magpul believes the products infringe on the patents. As the cases advance through the legal process, it is possible additional documents will be filed with the court that further explain the alleged infringements.

Here is the breakdown of the complaints:

Magpul Industries v. Cole Industries

Magpul alleges the Cole A2 30-round magazine for the AR-15 rifle infringes US Patent No. 8,069,601 B1 (ammunition magazine for a firearm).

Magpul v Cole Industries Complaint

Magpul v Cole Industries Complaint by Richard Johnson

Magpul Industries v. Big Rock Sports dba Swamp Fox Combat Gear

Magpul alleges the Swamp Fox TMG-M30-P01 30-round lightweight polymer magazine for AR-15/M-16 firearms infringes US Patent No. 8,069,601 B1 (ammunition magazine for a firearm).

Magpul v Big Rock Sports (Swamp Fox Combat Gear) Complaint by Richard Johnson

Magpul v Big Rock Sports (Swamp Fox Combat Gear) Complaint by Richard Johnson

Magpul Industries v. Brookshire Tool and Mfg Co dba ProMag Industries

Magpul alleges three ProMag magazines infringe on Magpul patents.  The magainzes that allegedly infringe are:

  • ProMag COL-A18 30-round black polymer magazine
  • ProMag COL-A16 42-round black polymer magazine
  • ProMag COL-A22 42-round desert tan polymer magazine

Magpul alleges ProMag infringes on multiple patents:

  • US Patent No. 8,069,601 B1  (ammunition magazine for a firearm)
  • US Patent No. D600,303  (ammunition magazine for a firearm)
  • US Patent No. D593,635  (ammunition magazine for a firearm)
  • US Patent No. D614,719  (casing for an ammunition magazine)

Magpul v Promag Complaint – Patent Infringement Lawsuit

Magpul v Promag Complaint – Patent Infringement Lawsuit by Richard Johnson

Magpul Industries v. Plinker Arms dba Plinker Tactical

Magpul alleges the Plinker Tactical AR 30-round polymer magazine  infringes on multiple Magpul patents. Those patents are:

  • US Patent No. 8,069,601 (ammunition magazine for a firearm)
  • US Patent No. D644,293  (magazine follower)
  • US Patent No. D620,545  (casing for an ammunition magazine)

Magpul v Plinker Tactical Complaint

Magpul v Plinker Tactical Complaint by Richard Johnson

Additional Reading

  • Taurus Raging Judge Magnum

    Taurus has moved the Judge line solidly into the big boom category with the introduction of the Raging Judge Magnum chambered in .454 Casull. This six-shot, big bore revolver can fire .454 Casull, .45 Colt and 2.5″ and 3″ .410 shotshells. Due to the power generated by the Casull cartridge, the cylinder has a double…

  • Mossberg Duck Dynasty Line

    Mossberg recently joined forces with the wildly popular real-TV show Duck Dynasty. Adding to their very popular line of shotguns, Mossberg will now offer a Duck Commander Series. The Series includes 11 pump-action and auto-loading waterfowl shotguns that will feature the Duck Commander logo, Realtree Max-5 camouflage, TRUGLO fiber optic sights with a variety of…

  • Magpul Folding Pocket Gun

    The Magpul Folding Pocket Gun is here. Well, an Airsoft version is anyway. Magpul made a big splash a few years ago when they introduced the Folding Pocket Gun (aka FMG9) concept machine pistol. The idea was they took a Glock and built it into a folding machine pistol, complete with a removable carry handle…

  • Charter Arms Old Glory

    According to the information I’ve been sent, Charter Arms is set to reintroduce a version of the Undercover revolver called the Old Glory. The Charter Arms Old Glory is a five-shot revolver chambered for the classic .38 Special cartridge. The gun is +P rated, so full power self-defense loads are perfectly fine in this handgun.

  • Smith and Wesson Model 632

    The modern Smith & Wesson 632 revolvers are a pair of J-frame revolvers chambered for the high-pressure .327 Federal Magnum cartridge. One of the 632 revolvers was discontinued within two years of introduction, while the other has been in continuous production since 2009. Both revolvers target the concealed carry market but from different angles. S&W…

One Comment

  1. Thanks for the information. Other sites don’t have this much information about the lawsuits.

Comments are closed.