ABC IP LLC v. Hayes Arms LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: ABC IP, LLC (Delaware) and Rare Breed Triggers, Inc. (Texas)
  • Defendant: Hayes Arms LLC (Alabama) and Jace D. Hayes (individual)
  • Plaintiff’s Counsel: Hill Hill Carter Franco Cole & Black, PC
• Case Identification: 4:26-cv-01411, N.D. Ala., 07/23/2026
• Venue Allegations: Venue is based on allegations that Defendants reside in the district, have a regular and established place of business in the district, and have committed acts of infringement there.
• Core Dispute: Plaintiffs allege that Defendants’ "Kabuto" line of forced reset trigger devices for AR-pattern firearms infringes four U.S. patents related to selectable, mechanically reset trigger mechanisms.
• Technical Context: The technology concerns "forced reset triggers," which use the energy from a firearm's cycling bolt carrier to mechanically reset the trigger, a function that can enable a faster rate of fire than standard semi-automatic mechanisms.
• Key Procedural History: The complaint does not mention any prior litigation, Inter Partes Review (IPR) proceedings, or specific prosecution history for the asserted patents.

Case Timeline

Date	Event
2021-11-05	U.S. Patent No. 12,031,784 Priority Date
2022-01-10	U.S. Patent No. 12,636,403 Priority Date
2022-09-08	U.S. Patent No. 12,038,247 Priority Date
2022-09-08	U.S. Patent No. 12,578,159 Priority Date
2024-07-09	U.S. Patent No. 12,031,784 Issued
2024-07-16	U.S. Patent No. 12,038,247 Issued
2026-03-17	U.S. Patent No. 12,578,159 Issued
2026-05-26	U.S. Patent No. 12,636,403 Issued
2026-07-23	Complaint Filing Date

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 12,038,247 - Firearm Trigger Mechanism

• Patent Identification: U.S. Patent No. 12,038,247, "Firearm Trigger Mechanism," issued July 16, 2024 Compl. ¶10

The Invention Explained

• Problem Addressed: The patent background describes a desire among some shooters to increase the rate of semi-automatic fire beyond what is typically possible with a standard trigger mechanism, which requires a full release and reset cycle (Compl. ¶¶18-19; ’247 Patent, col. 1:26-38). The patent notes that prior art forced reset triggers existed and that "further improvement" was desired ’247 Patent, col. 2:15-16
• The Patented Solution: The patent discloses a "drop-in" trigger module featuring a three-position safety selector for "safe," "standard semi-automatic," and "forced reset semi-automatic" modes ’247 Patent, abstract In the forced reset mode, a pivoting cam, actuated by the reciprocating bolt carrier, forces the trigger member back to its "set" position ’247 Patent, col. 9:48-53 Concurrently, a feature on the safety selector shaft physically blocks the disconnector, preventing it from catching the hammer, which allows a user to fire again immediately without manually releasing the trigger ’247 Patent, col. 8:55-62
• Technical Importance: The invention provides a self-contained, selectable-mode trigger assembly that allows a user to choose between conventional semi-automatic operation and a forced-reset function that increases the potential rate of fire ’247 Patent, col. 2:25-29

Key Claims at a Glance

• The complaint asserts infringement of at least independent claim 15 Compl. ¶30
• The essential elements of independent claim 15 include:
  • A firearm trigger mechanism comprising a hammer, a trigger member, a disconnector, and a cam.
  • The cam is movable between a first position (for standard mode) and a second position where its lobe forces the trigger member towards its set position.
  • In a "standard semi-automatic mode," the cam is in its first position, and the disconnector hook catches the hammer hook, requiring a manual trigger release by the user to fire again.
  • In a "forced reset semi-automatic mode," the cam is in its second position, the rearward movement of the bolt carrier causes the cam to force the trigger to reset, and the "disconnector hook is prevented from catching said hammer hook," allowing the user to pull the trigger again to fire the firearm.
• The complaint reserves the right to assert other claims Compl. ¶30

U.S. Patent No. 12,031,784 - Adapted Forced Reset Trigger

• Patent Identification: U.S. Patent No. 12,031,784, "Adapted Forced Reset Trigger," issued July 9, 2024 Compl. ¶11

The Invention Explained

• Problem Addressed: The patent identifies a problem with adapting prior art forced reset triggers to different firearm platforms (e.g., from an AR15 to an AR10) (’784 Patent, col. 1:21-29). Due to dimensional differences in the bolt carrier, a locking member long enough to be actuated by the rear of the bolt would interfere with a lower-sitting forward portion of the bolt as it cycles, rendering the mechanism inoperable ’784 Patent, col. 1:36-44
• The Patented Solution: The patent discloses a trigger locking member with an "upwardly extending deflectable portion" ’784 Patent, abstract This extension is rigid enough to be pushed by the bolt carrier to unlock the trigger, but it is designed with a one-way hinge or pivot that allows it to "give way (i.e., deflect or fold)" when the forward part of the bolt carrier passes over it during the rearward part of the cycle ’784 Patent, col. 2:2-10
• Technical Importance: This design allows a forced-reset-style trigger to function across different firearm platforms with varying bolt carrier geometries, improving the adaptability of the core mechanism ’784 Patent, col. 1:45-49

Key Claims at a Glance

• The complaint asserts infringement of at least independent claim 1 Compl. ¶44
• The essential elements of independent claim 1 include:
  • An extended trigger member locking device for a forced reset trigger mechanism.
  • A locking member movable between a first position (locking the trigger) and a second position (un-restricting the trigger).
  • The locking member has a "movably supported" body portion and an "upwardly extending deflectable portion."
  • This "deflectable portion" is "separately movable relative to the body portion" between an extended position and a deflected position.
• The complaint reserves the right to assert other claims Compl. ¶44

Multi-Patent Capsule: U.S. Patent No. 12,578,159 - Firearm Trigger Mechanism

• Patent Identification: U.S. Patent No. 12,578,159, "Firearm Trigger Mechanism," issued March 17, 2026 Compl. ¶12
• Technology Synopsis: This patent describes a dual-mode firearm trigger mechanism operable in a standard semi-automatic mode and a forced reset semi-automatic mode Compl. ¶21 In the forced reset mode, a cam actuated by the firearm's reciprocating bolt forces the trigger member toward its set position, while the disconnector is prevented from holding the hammer, allowing for immediate subsequent firing (’159 Patent, claim 1).
• Asserted Claims: The complaint asserts at least independent claim 1 Compl. ¶58
• Accused Features: The complaint alleges that the "Kabuto" device, when installed, creates the infringing dual-mode trigger mechanism, including the use of a cam and the ability to switch between standard and forced reset modes (Compl. ¶¶28; Compl. 58).

Multi-Patent Capsule: U.S. Patent No. 12,636,403 - Firearm Trigger Mechanism

• Patent Identification: U.S. Patent No. 12,636,403, "Firearm Trigger Mechanism," issued May 26, 2026 Compl. ¶13
• Technology Synopsis: This patent details a forced reset trigger mechanism with distinct selectable operating modes Compl. ¶23 A safety selector allows the user to choose between a standard semi-automatic mode, where the disconnector functions conventionally, and a forced reset mode, where the trigger is forcibly returned to its set position by the action and the disconnector is prevented from catching the hammer (’403 Patent, claim 38).
• Asserted Claims: The complaint asserts at least independent claims 38 and 54 Compl. ¶72
• Accused Features: The complaint alleges the "Kabuto" device infringes by providing a forced reset mechanism with a selector interface that allows for operation in both a standard semi-automatic position and a forced reset semi-automatic position Compl. ¶¶74-75

III. The Accused Instrumentality

• Product Identification: The accused products are the "Terminator V1.1, Terminator V2, and FRD-DH V1 Universal Kabuto-style FRDs," collectively referred to as "Kabuto" Compl. ¶25
• Functionality and Market Context: The complaint alleges the Kabuto products are sold as partial kits that include, at minimum, "the cam and cam lever components" Compl. ¶26 When these components are installed in a firearm with standard parts like a hammer and disconnector, the combination is alleged to create the infringing trigger mechanisms Compl. ¶26 The complaint alleges the resulting mechanism can be switched between a "standard AR-15 trigger" mode and a "forced reset semiautomatic with cam" mode using the firearm's safety selector Compl. ¶28 The complaint includes a plaintiff-generated rendering of the accused Kabuto mechanism, color-coding components to illustrate their alleged function Compl. ¶32, p. 8

IV. Analysis of Infringement Allegations

'247 Patent Infringement Allegations

Claim Element (from Independent Claim 15)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
A firearm trigger mechanism comprising: a hammer... a trigger member... said disconnector... and a cam...	The Kabuto is alleged to be part of a forced reset trigger mechanism that, when installed with a standard hammer, trigger, and disconnector, functions as a cam that forces the reset of the trigger.	¶32	col. 7:48-56; col. 8:1-3
said cam being movable between a first position and a second position, in said second position said cam lobe forces said trigger member towards said set position,	The complaint alleges the cam (Green) is movable and, in the forced reset mode (second position), its lobe forces the trigger member (Brown) toward the set position via a link (Blue).	¶32	col. 8:36-41
whereupon in a standard semi-automatic mode... said disconnector hook catches said hammer hook... a user must manually release said trigger member to free said hammer...	The complaint alleges that in a standard mode, the disconnector (Orange) hook catches the hammer (Red) hook, requiring the user to manually release the trigger (Brown) to reset the mechanism for the next shot.	¶32	col. 8:62-68
whereupon in a forced reset semi-automatic mode... said disconnector hook is prevented from catching said hammer hook... at which time the user can pull said trigger member to fire the firearm.	In the forced reset mode, the cam (Green) is in the second position, and the disconnector (Orange) hook is allegedly prevented from catching the hammer (Red) hook, allowing the user to fire again without a manual release.	¶32	col. 11:1-10

• Identified Points of Contention:
  • Scope Questions: Claim 15 recites functional outcomes for two distinct modes: "standard semi-automatic mode" and "forced reset semi-automatic mode." A central question will be whether the accused Kabuto, when installed, is capable of operating in both of these specific modes as defined by the claim's functional limitations.
  • Technical Questions: The claim requires that in the forced reset mode, the "disconnector hook is prevented from catching said hammer hook." The complaint does not specify the exact mechanism by which the accused product achieves this prevention. The evidence presented to show how the accused device performs this critical "preventing" function will be a key point of dispute.

'784 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
a locking member that is movable between a first position in which it locks a trigger against pulling movement and a second position where it does not restrict movement...	The Kabuto (yellow, blue, and purple components) is alleged to operate as a locking member that moves between a "Locked First Position" and an "Unlocked Second Position."	¶46	col. 2:54-61
including a generally upward extension portion configured to make actuating contact with a surface of the bolt carrier...	The "lever arm" (yellow) of the Kabuto is alleged to be an upward extending portion that makes contact with the bolt carrier, causing the locking member to move.	¶46	col. 3:9-14
the locking member having a body portion that is movably supported and an upwardly extending deflectable portion that is separately movable relative to the body portion between an extended position and a deflected position.	The Kabuto is alleged to have a body portion (blue) and an upwardly extending "deflectable portion" (the yellow "lever arm") that is separately movable. The complaint includes a diagram illustrating the separate travel of the lever arm relative to the body.	¶46	col. 5:4-8

• Identified Points of Contention:
  • Scope Questions: The dispute will likely focus on the term "deflectable portion." The patent uses the phrase "deflect or fold" and shows a hinged pivot ’784 Patent, col. 2:3-4 The question for the court will be whether the accused product's "lever arm" Compl. ¶46, p. 22 performs an action that falls within the construed meaning of "deflectable."
  • Technical Questions: Is the accused "lever arm" truly "separately movable relative to the body portion" as required by the claim? The complaint provides a diagram overlay attempting to demonstrate this independent movement Compl. ¶46, p. 24 The defense may argue that the components move as a single unit or that the nature of the movement does not meet the "separate" and "deflectable" limitations.

V. Key Claim Terms for Construction

For U.S. Patent No. 12,038,247

• The Term: "prevented from catching said hammer hook"
• Context and Importance: This phrase defines the key functional difference of the "forced reset" mode. Infringement of claim 15 hinges on whether the accused device implements a mechanism that achieves this "prevention." Practitioners may focus on this term because its construction will determine whether the specific blocking mechanism shown in the patent is the only way to infringe, or if other methods of disabling the disconnector are also covered.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The claim uses functional language ("prevented from") without specifying the structure that performs the prevention. This may support an interpretation covering any means of stopping the disconnector from engaging the hammer.
  • Evidence for a Narrower Interpretation: The specification describes a single way this is accomplished: a "narrow semi-circular portion 116" of the safety selector (110) physically obstructs the disconnector's movement ’247 Patent, col. 8:55-62 A party could argue the claim should be limited to this disclosed mechanism.

For U.S. Patent No. 12,031,784

• The Term: "deflectable portion"
• Context and Importance: This term is at the core of the '784 patent's novelty, distinguishing it from prior art locking bars that could interfere with a bolt carrier's cycle. Whether the accused device's "lever arm" is a "deflectable portion" will be a dispositive issue.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification explicitly states the invention provides for a part that can "give way (i.e., deflect or fold)" ’784 Patent, col. 2:3-4 The embodiments show a hinged pivot. This language suggests "deflectable" was intended to be interpreted broadly to include pivoting or folding, not just material flexing.
  • Evidence for a Narrower Interpretation: A party could argue that the plain and ordinary meaning of "deflectable" implies bending under load, not pivoting on a hinge. The specification also mentions that the portion "could be made from a resilient material configured to deflectably bend" ’784 Patent, col. 3:47-49, which could be used to argue that pivoting is just one embodiment and not the full scope of the term.

VI. Other Allegations

• Indirect Infringement: The complaint alleges both induced and contributory infringement for all asserted patents. Inducement is based on Defendants allegedly "encouraging, advertising, promoting, and instructing others to use and/or how to use the Kabuto" Compl. ¶33 Compl. ¶47 Compl. ¶61 Compl. ¶76 Contributory infringement is based on allegations that the sold components are "specially designed and adapted" for an infringing use and are "not suitable for substantial noninfringing use" Compl. ¶35 Compl. ¶49 Compl. ¶63 Compl. ¶78
• Willful Infringement: Willfulness is alleged for all asserted patents. The claims are based on Defendants having "known or should have known" that their actions constituted infringement of patents that are "presumed valid" Compl. ¶36 Compl. ¶50 Compl. ¶64 Compl. ¶79 The allegations cite knowledge "at least through the service of this complaint," which directly supports a claim for post-suit willfulness, while leaving open the possibility of proving pre-suit knowledge.

VII. Analyst’s Conclusion: Key Questions for the Case

1. A core issue will be one of definitional scope: Can the term "deflectable portion" from the '784 patent, which is described in the specification as being able to "deflect or fold," be construed to cover the accused product’s pivoting "lever arm"?
2. A key evidentiary question will be one of functional operation: Does the accused Kabuto kit, when combined with standard firearm components, create a system that performs the specific dual-mode functions of the '247, '159, and '403 patents? Specifically, does a component of the accused system actively "prevent" the disconnector from catching the hammer in the forced reset mode, as required by the claims?
3. A third central issue will be one of system infringement: As the accused products are sold as partial kits, Plaintiffs will need to prove that the combination of Defendants' kit with the other necessary, off-the-shelf components meets all limitations of the asserted system claims, and that Defendants are liable for that infringement.