US 10,514,223 Firearm trigger mechanism
27 defendants · 34 suits · updated October 6, 2026
Also cited as U.S. Patent No. 10,514,223 · US10514223B1 · US 10,514,223 B1 · 10514223 · the '223 patent
ABC IP, LLC has filed 34 patent-infringement suits on US 10,514,223, "Firearm trigger mechanism" since May 28, 2026, 12 of them in the E.D. Tex., against 27 distinct defendants including Vance Outdoors, Inc., 2A Ninja LLC and Quick Response Firearms, LLC. The patent was granted December 24, 2019 on a priority date of September 29, 2017. Its abstract opens: "A trigger mechanism for use in a firearm having a receiver with a fire control mechanism pocket, transversely aligned pairs of hammer and trigger pin openings in the pocket, and a bolt carrier that reciprocates and pivotally displaces a hammer when cycled." The examiner cited 5 references during prosecution.
- Assignee
- ABC IP LLC
- Priority date
- September 29, 2017
- Granted
- December 24, 2019
- Expires
- September 29, 2037
- Status
- Active
- Claims
- 7 (2 independent)
- Inventors
- Jeffrey Cooper Rounds
- Full text
- Google Patents
The suits
34 cases · E.D. Tex. (12) · E.D. Va. (3) · N.D. Fla. (2) · S.D. Ohio (1) · E.D. Mo. (1) · D. Idaho (1) · D.S.C. (1) · M.D.N.C. (1) · E.D. Cal. (1) · D. Md. (1) · N.D. Tex. (1) · S.D. Miss. (1) · D. Ariz. (1) · W.D. Tex. (1) · W.D.N.C. (1) · E.D. Ky. (1) · N.D. Miss. (1) · W.D. La. (1) · W.D. Mo. (1) · W.D. Wash. (1)
| Filed | Defendant | Plaintiff | Court | Docket |
|---|---|---|---|---|
| 2026-05-28 | Vance Outdoors, Inc. | ABC IP, LLC | S.D. Ohio | 2:26-cv-00645 |
| 2026-05-29 | 2A Ninja LLC | ABC IP, LLC | E.D. Mo. | 4:26-cv-00854 |
| 2026-06-01 | Quick Response Firearms, LLC | ABC IP, LLC | D. Idaho | 4:26-cv-00343 |
| 2026-06-04 | East Coast Cerakote LLC | ABC IP, LLC | D.S.C. | 3:26-cv-02196 |
| 2026-06-05 | SHOOTING TARGETS USA, LLC | ABC IP, LLC | M.D.N.C. | 1:26-cv-00527 |
| 2026-06-08 | Dirty Bird Industries, LLC | ABC IP, LLC | E.D. Cal. | 1:26-cv-04425 |
| 2026-06-09 | Atlantic Firearms LLC | ABC IP, LLC | D. Md. | 1:26-cv-02317 |
| 2026-06-09 | GrabAGun LLC | ABC IP LLC | N.D. Tex. | 3:26-cv-01903 |
| 2026-06-09 | Velocity Ammunition Sales, LLC | ABC IP, LLC | E.D. Va. | 3:26-cv-00533 |
| 2026-06-15 | 2A Optics LLC | ABC IP, LLC | S.D. Miss. | 5:26-cv-00539 |
| 2026-06-18 | TGR Services, LLC, d/b/a Mission Ridge LLC & Mission Ridge Range & Academy LLC, f/k/a Texas Gun Range Operators LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-00680 |
| 2026-07-07 | ADVANCED THREAT ASSESSMENT AND TRAINING INC. | Rare Breed Triggers, Inc. | E.D. Tex. | 4:26-cv-00801 |
| 2026-07-14 | Star Development LLC | ABC IP LLC | D. Ariz. | 2:26-cv-04939 |
| 2026-07-17 | GERONIMO ARMS & AMMO LLC | ABC IP LLC | N.D. Fla. | 1:26-cv-00165 |
| 2026-07-21 | Firearms Direct Club LLC | ABC IP LLC | N.D. Fla. | 3:26-cv-04717 |
| 2026-07-21 | Muffintop Tactical, LLC | ABC IP, LLC | W.D. Tex. | 1:26-cv-02010 |
| 2026-07-22 | MAS Defense LLC | ABC IP, LLC | W.D.N.C. | 3:26-cv-00592 |
| 2026-07-22 | MGCC Enterprises LLC | ABC IP, LLC | E.D. Va. | 1:26-cv-02210 |
| 2026-07-22 | MGCC Enterprises LLC | ABC IP, LLC | E.D. Va. | 2:26-cv-00776 |
| 2026-07-23 | Clifford Farrington | ABC IP, LLC | E.D. Ky. | 5:26-cv-00279 |
| 2026-07-27 | Atlantic Firearms LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-00926 |
| 2026-07-28 | DMR Reset Systems Limited Liability Company | ABC IP, LLC | N.D. Miss. | 1:26-cv-00139 |
| 2026-07-28 | Inoculum-Group LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-00945 |
| 2026-07-28 | Quick Response Firearms, LLC | ABC IP LLC | E.D. Tex. | 4:26-cv-00944 |
| 2026-07-29 | Bilson Arms L L C | A B C I P L L C | W.D. La. | 6:26-cv-02780 |
| 2026-08-04 | East Valley Tactical LLC | ABC IP LLC | E.D. Tex. | 4:26-cv-00996 |
| 2026-08-05 | Dirty Bird Industries, LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-01013 |
| 2026-08-05 | Gross | ABC IP, LLC | W.D. Mo. | 3:26-cv-05070 |
| 2026-08-19 | Odin Works, Inc. | ABC IP, LLC | E.D. Tex. | 4:26-cv-01091 |
| 2026-08-20 | 2A Ninja LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-01106 |
| 2026-08-25 | Combat Armory LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-01129 |
| 2026-08-26 | Bilson Arms, LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-01134 |
| 2026-08-26 | Star Development, LLC | ABC IP, LLC | E.D. Tex. | 4:26-cv-01136 |
| 2026-09-14 | GSG Mfg LLC | ABC IP LLC | W.D. Wash. | 2:26-cv-03290 |
Docket links open the public record on CourtListener. Filing dates are the complaint's.
Independent claims
What is actually asserted, verbatim.
1. For a firearm having a receiver with a fire control mechanism pocket, transversely aligned pairs of hammer and trigger pin openings in side walls of the pocket, and a bolt carrier that reciprocates and pivotally displaces a hammer when cycled, a trigger mechanism, comprising: a hammer having a sear notch and mounted in the fire control mechanism pocket to pivot on a transverse hammer pin between set and released positions; a trigger member having a sear and mounted in the fire control mechanism pocket to pivot on a transverse trigger pin between set and released positions, the trigger member having a surface positioned to be contacted by the hammer when the hammer is displaced by cycling of the bolt carrier, the contact causing the trigger member to be forced to the set position; a locking bar pivotally mounted in a frame and spring biased toward a first position in which the locking bar mechanically blocks the trigger member from moving to the released position, and movable against the spring bias to a second position when contacted by the bolt carrier reaching a substantially in-battery position, allowing the trigger member to be moved by an external force to the released position.
4. For a firearm having a receiver with a fire control mechanism pocket, assembly pin openings in side walls of the pocket, and a bolt carrier that reciprocates and pivotally displaces a hammer when cycled, a trigger mechanism, comprising: a housing having transversely aligned pairs of openings for receiving hammer and trigger assembly pins; a hammer having a sear notch and mounted in the housing to pivot on a transverse axis between set and released positions; a trigger member having a sear and mounted in the housing to pivot on a transverse axis between set and released positions, the trigger member having a surface positioned to be contacted by the hammer when the hammer is displaced by the bolt carrier when cycled, the contact causing the trigger member to be forced to the set position; a locking bar pivotally mounted in the housing and spring biased toward a first position in which the locking bar mechanically blocks the trigger member from moving to the released position, and movable against the spring bias to a second position when contacted by the bolt carrier reaching a substantially in-battery position in which the trigger member can be moved by an external force to the released position.
Art before the examiner
16 references of record, 5 cited by the examiner.
Everything listed here was before the Office and is what a challenge must go beyond. Art the examiner never saw is where an invalidity search starts.
Examiner-cited
- US5704153A — Firearm battery and control module (Colt's Manufacturing Company, Inc.)
- US20070199435A1 — Law enforcement carbine with one piece receiver (Paul Hochstrate)
- US9513076B2 — Firearm with reciprocating bolt assembly (Savage Arms, Inc.)
- US20170219307A1 — Trigger-Locking Apparatus, System, and Method for Semiautomatic Firearms (Fostech Mfg Llc)
- US20180087860A1 — Selective fire firearm systems and methods (ArmWest, LLC)
Applicant-cited and other (11)
- US6101918A — Method and apparatus for accelerating the cyclic firing rate of a semi-automatic firearm
- TW409847U — Firing mechanism module of automatic firearms
- US6722072B1 — Trigger group module for firearms and method for installing a trigger group in a firearm
- US7213359B2 — Additional safety device for sear mechanism for firearms
- US7398723B1 — Trigger forward displacement system and method
- US8127658B1 — Method of shooting a semi-automatic firearm
- US8820211B1 — Selectable dual mode trigger for semiautomatic firearms
- US9021732B2 — Firearm trigger reset assist apparatus and method
- US20160010933A1 — Rapid Reset Fire Control
- US20160102933A1 — Flex-fire technology
- US20180066911A1 — Flex-fire g2 technology
Classification
- F41A17/46primary — Trigger safeties, i.e. means for preventing trigger movement
- F41A19/43primary — Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in bolt-action guns
- F41A17/82 — Hammer safeties, i.e. means for preventing the hammer from hitting the cartridge or the firing pin trigger-operated, i.e. the movement of the trigger bringing a hammer safety into inoperative position during firing
- F41A19/10 — Triggers; Trigger mountings
- F41A19/12 — Sears; Sear mountings
- F41A19/14 — Hammers, i.e. pivotably-mounted striker elements; Hammer mountings
- F41A19/15 — Modular firing mechanism units
Family
- US10514223B1 — B1 (2019)
Abstract
A trigger mechanism for use in a firearm having a receiver with a fire control mechanism pocket, transversely aligned pairs of hammer and trigger pin openings in the pocket, and a bolt carrier that reciprocates and pivotally displaces a hammer when cycled. The trigger mechanism includes a hammer, a trigger member, and a locking bar. The hammer has a sear notch and is mounted in the fire control mechanism pocket to pivot on a transverse hammer pin between set and released positions. The trigger member has a sear and is mounted in the fire control mechanism pocket to pivot on a transverse trigger pin between set and released positions. The trigger member has a surface positioned to be contacted by hammer when the hammer is displaced by cycling of the bolt carrier, the contact causing the trigger member to be forced to the set position. The locking bar is pivotally mounted in a frame and spring biased toward a first position in which it mechanically blocks the trigger member from moving to the release position, and is movable against the spring bias to a second position when contacted by the bolt carrier reaching a substantially in-battery position, allowing the trigger member to be moved by an external force to the released position.
Also asserted by ABC IP, LLC
- US 12,636,403 (82 defendants)
- US 12,038,247 — Firearm trigger mechanism (75 defendants)
- US 12,578,159 — Firearm trigger mechanism (75 defendants)
- US 12,031,784 — Adapted forced reset trigger (74 defendants)
- US 12,529,538 — Safety mechanism for firearm (50 defendants)
- US 11,724,003 — Firearm trigger mechanism (26 defendants)
- US 12,036,336 — Firearm trigger mechanism (26 defendants)
- US 12,274,807 — Firearm trigger mechanism (26 defendants)
- US 4,057,003 — Open bolt conversion apparatus (3 defendants)
Named in one of these suits? A prior-art search is commissioned once and serves every defendant who shares it. The examiner's own search record is free on the tools page, and your first preliminary search is free — one claim, back within 24 hours — so you know whether there is art the Office never saw before anyone pays for more. Flat fees: $2,500$899 for the independent claims, $5,000$1,500 for every asserted claim.
This page is assembled from public records — federal court dockets and the patent's own file — and is updated as the case list changes. It states what the record shows and is not an opinion on the validity or infringement of any claim. Patent data via Google Patents; docket data via CourtListener.