align=middle
Categories: News

LWRC and Sig Sauer Sued By Leitner-Wise

The news that LWRC and Sig Sauer sued by Leitner-Wise kind of comes as a shock if I am honest. Earlier today (The publish date on this post is 6 months after it was initially run.) Paul Leitner-Wise of Leitner-Wise Manufacturing filed a lawsuit for patent infringement against LWRC and Sig Sauer.
If you are unfamiliar with Mr. Leitner-Wise you may be familiar with the company he founded, LWRC or Leitner-Wise Rifle Company. Mr. Leitner-Wise is the patent holder for the self-cleaning gas operating system that LWRC currently uses on their piston driven rifles.

Mr. Leitner-Wise sold LWRC in 2005 and remained an employee of the company, in 2006 Leitner-Wise left the employ of LWRC. Part of the employment contract as outlined in the relevant facts section of the suit is Mr. Leitner-Wise was to be paid a 0.5% royalty from the net sale of every rifle that used his piston system. The suit goes on to state that the contract was removed from his possession at some time around when Leitner-Wise’s employment ceased.

The lawsuit also goes on to name Sig Sauer as a defendant, claiming they are using Leitner-Wise’s design in the Sig 516 rifle without paying proper royalties. The suit then goes on to request that Sig pay according to the same royalty agreement that LWRC agreed to when Leitner-Wise signed on as an employee. Over a dozen other rifle designs were named in the suit as using the patent, some of the more notable ones being the Sig MCX, the Sig 516 and the Sig 716.

You can read the entire lawsuit by clicking here.

As always expect us to update you as we learn more about the status of the lawsuit.

Patrick Roberts

Since founding Firearm Rack in 2014 which evolved into Primer Peak in 2020, Patrick has been published by RECOIL, Ammoland, Gun Digest, The Firearm Blog, The Truth About Guns, Breach Bang Clear, Brownells, The Shooter's Log, and All Outdoor. When he isn't writing you can find him instructing handgun and AR-15 courses, training his dog Bear, or spending time with his son Liam. See what he is up to on his YouTube Channel, on Facebook, or on Instagram at @thepatrickroberts.

Share
Published by
Patrick Roberts

Recent Posts

NRA Board of Directors 2027 Election Q&A | Ken Campbell

The National Rifle Association is holding an election to select new members for their Board…

3 days ago

How to Improve IDPA [2026]

Recently I spoke about the Pros and Cons of IDPA. Since writing that piece I…

5 days ago

NRA Board of Directors 2027 Election Q&A | Freddie Blish

For those unaware, the National Rifle Association is run by a Board of Directors. The…

1 week ago

Mantis TitanX Laser Training Pistol Review [2026]

During this year's SHOT Show I had the opportunity to get hands-on with the new…

2 weeks ago

Aridus Industries CROM Review [2026]

Shortly after I received my A300UP from Beretta I mounted an optic on the receiver.…

3 weeks ago

ICORE – The Revolver Enthusiasts’ Paradise

I first started shooting competitively a decade ago. I also first started competing with a…

4 weeks ago