ABC IP LLC v. Quick Response Firearms LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: ABC IP, LLC (Delaware) and RARE BREED TRIGGERS, INC. (Texas)
  • Defendant: Quick Response Firearms LLC (Idaho); Daniel Corsini (individual); Jerried "Jerry" Brown (individual)
  • Plaintiff's Counsel: Beard ST. Clair Gaffney PA
• Case Identification: 1:26-cv-00343, D. Idaho, 06/01/2026
• Venue Allegations: Venue is alleged to be proper in the District of Idaho on the basis that all Defendants reside in the district, maintain a regular and established place of business there, and have committed the alleged acts of infringement within the district.
• Core Dispute: Plaintiffs allege that Defendants' "Disruptor" firearm trigger assembly infringes five U.S. patents directed to forced reset trigger mechanisms.
• Technical Context: The technology concerns firearm trigger mechanisms, specifically "forced reset" triggers that utilize the reciprocating motion of a firearm's bolt carrier to mechanically reset the trigger, potentially enabling a faster rate of fire than conventional semi-automatic designs.
• Key Procedural History: The complaint alleges that the manufacturer of the accused "Disruptor" trigger maintains a public website with a page titled "FRT Legal Library" that includes links to copies of several of the asserted patents, which Plaintiffs present as evidence of Defendants' knowledge of the patents and the willfulness of the alleged infringement.

Case Timeline

Date	Event
2017-09-29	Priority Date for U.S. Patent No. 10,514,223
2019-12-24	U.S. Patent No. 10,514,223 Issued
2022-01-10	Priority Date for Patents 11,724,003, 12,036,336, 12,274,807, and 12,636,403
2023-08-15	U.S. Patent No. 11,724,003 Issued
2024-07-16	U.S. Patent No. 12,036,336 Issued
2025-04-15	U.S. Patent No. 12,274,807 Issued
2025-05-26	U.S. Patent No. 12,636,403 Issued
2026-06-01	Complaint Filed

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

U.S. Patent No. 10,514,223 - Firearm Trigger Mechanism, issued December 24, 2019

The Invention Explained

• Problem Addressed: Standard semi-automatic trigger mechanisms require a user to manually release the trigger to reset the sear, which limits the potential rate of fire and prevents the hammer from simply "following" the bolt carrier without firing a second round Compl. ¶¶19-20 '223 Patent, col. 1:16-36
• The Patented Solution: The invention is a trigger mechanism where the cycling of the firearm's bolt carrier forces the hammer into a position that, in turn, mechanically forces the trigger member to its reset position Compl. ¶22 '223 Patent, col. 5:26-38 A separate "locking bar" then blocks the trigger from being pulled again until the bolt carrier has returned to a safe, in-battery position, which prevents "hammer follow" and ensures the firearm only fires when ready '223 Patent, abstract '223 Patent, col. 4:62-68
• Technical Importance: The technology provides a "drop-in" mechanical solution for increasing the semi-automatic rate of fire in popular firearm platforms without requiring complex electronics or modifications to the bolt carrier itself '223 Patent, col. 2:22-29

Key Claims at a Glance

• The complaint asserts at least independent Claim 4 Compl. ¶39
• The essential elements of Claim 4 include:
  • A housing with openings for receiving hammer and trigger assembly pins.
  • A hammer mounted in the housing to pivot between set and released positions.
  • A trigger member mounted in the housing to pivot, which has a surface positioned to be contacted by the hammer when it is displaced by the bolt carrier, causing the trigger member to be forced to the set position.
  • A locking bar, pivotally mounted and spring-biased, that mechanically blocks the trigger from moving to the released position, and is movable by the bolt carrier when it reaches an in-battery position to allow the trigger to be moved by an external force.
• The complaint reserves the right to assert other claims Compl. ¶39

U.S. Patent No. 11,724,003 - Firearm Trigger Mechanism, issued August 15, 2023

The Invention Explained

• Problem Addressed: Prior forced reset triggers operated in a single mode, but an improved design was desired that could offer the user a choice between standard semi-automatic operation and forced reset operation '003 Patent, col. 2:20-22
• The Patented Solution: The invention adds a three-position safety selector to the forced reset trigger design, allowing the user to choose between "safe," "standard semi-automatic," and "forced reset semi-automatic" modes Compl. ¶23 '003 Patent, abstract In the forced reset mode, the selector is configured to prevent the disconnector from catching the hammer, thereby enabling the forced reset functionality; in the standard mode, the disconnector is allowed to function normally '003 Patent, col. 9:8-20 '003 Patent, col. 9:51-64
• Technical Importance: This dual-mode capability provides users with the tactical flexibility to switch between a conventional trigger pull and a rapid-fire forced reset function within a single integrated, drop-in mechanism '003 Patent, col. 2:35-39

Key Claims at a Glance

• The complaint asserts at least independent Claim 4 Compl. ¶47
• The essential elements of Claim 4 include:
  • A housing, a hammer with a sear catch and disconnector hook, a trigger member with a sear and a forced-reset surface, a disconnector, and a locking member, which collectively provide a forced reset function.
  • A safety selector adapted to pivot between safe, standard semi-automatic, and forced reset semi-automatic positions.
  • The claim further specifies the distinct operations in both the standard semi-automatic mode (where the user must manually release the trigger to reset) and the forced reset mode (where the user can fire again without manually releasing the trigger).
• The complaint reserves the right to assert other claims Compl. ¶47

Multi-Patent Capsule: U.S. Patent No. 12,036,336

• Patent Identification: U.S. Patent No. 12,036,336, Firearm Trigger Mechanism, issued July 16, 2024 Compl. ¶13
• Technology Synopsis: The patent describes a firearm trigger mechanism with a three-position safety selector providing safe, standard semi-automatic, and forced reset semi-automatic modes '336 Patent, abstract It builds on the technology of the '003 patent, detailing the interaction between the safety selector, disconnector, and other components to enable dual-mode functionality '336 Patent, col. 9:11-34
• Asserted Claims: At least Claim 3 Compl. ¶54
• Accused Features: The "Disruptor" trigger's three-position safety selector and its ability to operate in both a standard disconnector mode and a forced reset mode Compl. ¶27 Compl. ¶29

Multi-Patent Capsule: U.S. Patent No. 12,274,807

• Patent Identification: U.S. Patent No. 12,274,807, Firearm Trigger Mechanism, issued April 15, 2025 Compl. ¶14
• Technology Synopsis: This patent also describes a trigger mechanism with a three-position safety selector for selecting between safe, standard semi-automatic, and forced reset semi-automatic modes '807 Patent, abstract The invention is designed for use in the fire control pocket of an AR-pattern firearm and includes a hammer, trigger, disconnector, and locking member that interact to provide the selectable modes of operation '807 Patent, col. 10:65-11:15
• Asserted Claims: At least Claim 1 Compl. ¶61
• Accused Features: The "Disruptor" trigger's functionality as a drop-in unit with a three-position selector providing both standard and forced reset modes Compl. ¶27 Compl. ¶29

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

• Patent Identification: U.S. Patent No. 12,636,403, Firearm Trigger Mechanism, issued May 26, 2026 Compl. ¶15
• Technology Synopsis: The patent covers a trigger mechanism with a selectable dual-mode (standard and forced reset) capability, enabled by a three-position safety selector '403 Patent, abstract The claims focus on the interaction where the selector, when in the forced reset position, prevents the disconnector from catching the hammer, while allowing it to function normally in the standard semi-automatic position '403 Patent, col. 17:35-18:6
• Asserted Claims: At least Claim 38 Compl. ¶68
• Accused Features: The "Disruptor" trigger, which the complaint alleges is a forced reset trigger with a three-position selector for selecting different firing modes Compl. ¶27 Compl. ¶70

III. The Accused Instrumentality

Product Identification

• The accused product is a forced reset trigger assembly known as the "Disruptor" Compl. ¶25

Functionality and Market Context

• The complaint alleges the Disruptor is a "drop-in forced reset trigger" marketed for AR-15 pattern firearms Compl. ¶26 According to allegations, it features a three-position safety selector allowing the user to switch between "Safe, Semi-Automatic, and Enhanced Semi-Automatic modes" Compl. ¶27 The complaint asserts that the "Semi-Automatic" mode functions like a standard AR-15 trigger with a disconnector, while the "Enhanced Semi-Automatic" mode is a forced reset mode Compl. ¶27 The complaint includes a screenshot from the Defendants' website describing the Disruptor as a "true, direct drop-in replacement trigger, requiring no modification, gunsmithing, or fitting" Compl. p. 7

IV. Analysis of Infringement Allegations

10,514,223 Patent Infringement Allegations

Claim Element (from Independent Claim 4)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
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:	The Infringing Device is for an AR-pattern firearm, which has a lower receiver with a fire control pocket, assembly pin openings, and a bolt carrier that reciprocates and pivotally displaces a hammer when cycled Compl. p. 10	¶41	col. 3:35-49
a housing having transversely aligned pairs of openings for receiving hammer and trigger assembly pins;	The Infringing Device includes a housing with transversely aligned pairs of openings for receiving hammer and trigger assembly pins Compl. p. 11	¶41	col. 4:61-65
a hammer having a sear notch and mounted in the housing to pivot on a transverse axis between set and released positions;	The Infringing Device includes a hammer with a sear notch and is mounted in the housing to pivot on a transverse axis between set and released positions Compl. p. 11	¶41	col. 4:15-27
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;	The Infringing Device includes a trigger member with a sear, mounted in the housing. The trigger member has a surface positioned to be contacted by the hammer when displaced by the bolt carrier, causing the trigger member to be forced to the set position Compl. pp. 11-12	¶41	col. 5:32-38
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.	The Infringing Device includes a pivotally mounted locking bar that is spring biased to a first position to block the trigger. It is movable against the spring bias to a second position when contacted by the in-battery bolt carrier, allowing the trigger to be moved by external force Compl. p. 12	¶41	col. 4:62-68; col. 5:1-8

• Identified Points of Contention:
  • Scope Questions: The complaint alleges the Disruptor infringes the '223 Patent, which claims a forced reset trigger mechanism Compl. ¶39 However, the complaint also states the Disruptor has an additional, selectable standard semi-automatic mode Compl. ¶27 A potential point of contention is whether a multi-mode device can infringe a patent that discloses and claims a single-mode device. The complaint anticipates this, arguing that the open-ended "comprising" language of the claims means the inclusion of additional features does not avoid infringement Compl. ¶40
  • Technical Questions: A key technical question will be whether the accused "locking bar" functions in the same way as the claimed element. The complaint provides an annotated diagram of the accused locking bar, alleging it blocks the trigger member from moving to the released position until moved by the bolt carrier Compl. p. 12 The court will likely need to analyze the precise mechanical interactions of the accused device to determine if they meet the claimed functional limitations.

11,724,003 Patent Infringement Allegations

Claim Element (from Independent Claim 4)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
A firearm trigger mechanism comprising: a housing...; a hammer...; a trigger member...; a disconnector...; a locking member...; and a safety selector adapted to be mounted in a fire control mechanism pocket of a receiver to pivot between safe, standard semi-automatic, and forced reset semi-automatic positions,	The Infringing Device is an "AR-15 FRT 3 Position Drop In Forced Reset Trigger" that includes a housing, hammer, trigger, disconnector, locking member, and a safety selector that pivots between safe, standard semi-automatic, and forced reset positions Compl. pp. 13-17 The complaint includes a photograph of the accused safety selector alongside the trigger housing Compl. p. 17	¶48	col. 7:13-19; col. 9:8-12
whereupon in said standard semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer such that said disconnector hook catches said hammer hook, at which time a user must manually release said trigger member to free said hammer from said disconnector to permit said hammer and trigger member to pivot to said set positions so that the user can pull said trigger member to fire the firearm, and	When in the standard semi-automatic position, rearward bolt carrier movement causes the disconnector hook to catch the hammer hook. The user must then manually release the trigger to free the hammer, permitting the trigger and hammer to pivot to their set positions, allowing the user to fire again Compl. p. 17	¶48	col. 9:36-50
whereupon in said forced reset semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer causing said trigger member to be forced to said set position, said safety selector preventing said disconnector hook from catching said hammer hook, and thereafter when the bolt carrier reaches the substantially in-battery position the user can pull said trigger member to fire the firearm without manually releasing said trigger member.	When in the forced reset position, rearward bolt carrier movement forces the trigger to the set position. The safety selector prevents the disconnector from catching the hammer hook. When the bolt carrier is in-battery, the user can pull the trigger to fire without first manually releasing it Compl. p. 17	¶48	col. 9:51-64

• Identified Points of Contention:
  • Technical Questions: The infringement allegation for the '003 Patent appears more direct, as both the patent and the accused device are described as having selectable dual-mode functionality. The central dispute may focus on the precise mechanism by which the safety selector "prevents" the disconnector from engaging. The court will need to determine if the accused selector's method of disabling the disconnector-whether by direct contact, repositioning, or another means-falls within the scope of the claim language.
  • Scope Questions: What evidence does the complaint provide that the accused device's "Enhanced Semi-Automatic mode" performs the specific function of the safety selector "preventing said disconnector hook from catching said hammer hook" as required by the claim? The complaint alleges this functionality but a key question for the court will be the technical evidence supporting this equivalence. The plaintiff-generated color-coded diagrams for the related '403 patent illustrate this alleged interaction, showing the selector physically repositioning the disconnector in the forced reset mode Compl. p. 30

V. Key Claim Terms for Construction

• For the '223 Patent:

  • The Term: "locking bar"
  • Context and Importance: The locking bar is the element claimed to prevent the trigger from being pulled prematurely before the bolt is in battery, which is a critical safety and operational feature of the forced reset design. Its interaction with both the trigger and the bolt carrier is central to the invention. Practitioners may focus on this term because its specific mechanical operation and how it "mechanically blocks the trigger member" will likely be a key point of non-infringement or invalidity arguments.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The patent abstract describes the element functionally as a "locking bar pivotally mounted... and spring biased toward a first position in which it mechanically blocks the trigger member from moving to the release position" '223 Patent, abstract This functional language may support an interpretation covering various structures that achieve the same result.
    • Evidence for a Narrower Interpretation: Claim 4 requires the bar to be "movable against the spring bias to a second position when contacted by the bolt carrier reaching a substantially in-battery position" '223 Patent, col. 6:40-47 Figure 3 shows a specific embodiment where an upper end of the locking bar (62) is engaged by a specific surface (54) on the bolt carrier (52) '223 Patent, Fig. 3 '223 Patent, col. 4:68-5:8 This may support a narrower construction tied to this specific interaction.

• For the '003 Patent:

  • The Term: "safety selector preventing said disconnector hook from catching said hammer hook" (from Claim 4)
  • Context and Importance: This phrase describes the core function that enables the "forced reset" mode in the dual-mode invention. The entire point of the selector's third position is to disable the standard disconnector function. The interpretation of "preventing" will be critical to determining infringement. Practitioners may focus on this term because the specific mechanism by which the accused device's selector achieves this "prevention" will be compared against the mechanism disclosed in the patent.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The claim language "preventing... from catching" is functional and could be argued to encompass any method where the selector's position results in the disconnector being unable to engage the hammer, regardless of the intermediate mechanics.
    • Evidence for a Narrower Interpretation: The specification describes a specific embodiment where a "narrow semi-circular portion 116" of the safety selector itself physically "prevents the disconnector 60 from pivoting with the trigger member 38" '003 Patent, col. 9:25-34 An argument could be made that "preventing" is limited to this direct physical blocking by a feature on the selector body itself, as opposed to a more indirect causation.

VI. Other Allegations

• Indirect Infringement: The complaint alleges inducement and contributory infringement for at least the '403 Patent Compl. ¶68 The contributory infringement allegation is based on the assertion that the components of the Disruptor trigger are "specially designed and adapted to be used in a fire control unit to forcibly reset a trigger mechanism" and are "not suitable for substantial noninfringing use" Compl. ¶71 The inducement allegation is based on Defendants making, using, and selling the products, and providing notice of the patent rights to resellers Compl. ¶32 Compl. ¶68
• Willful Infringement: Willfulness is alleged for all asserted patents Compl. p. 33, prayer b. The primary factual basis for this allegation is the existence of an "FRT Legal Library" webpage on the website of the accused product's manufacturer, which allegedly links to copies of the '223, '003, and '336 patents Compl. ¶32 The complaint alleges that the individual Defendants, as principals of the reseller QRF, had "access to and knowledge of" this library, and therefore knew of Plaintiffs' patent rights Compl. ¶33 Compl. ¶35

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

• A core issue will be one of infringement by an improved device: can the single-mode forced-reset claims of the '223 patent be infringed by the accused "Disruptor" trigger, which adds a selectable standard semi-automatic mode, or does this additional functionality place it outside the scope of the claims?
• A key technical question will be one of mechanical equivalence: for the dual-mode patents (e.g., '003, '336, '807, and '403), does the accused trigger's safety selector and locking mechanism operate in the specific manner required by the claim limitations, particularly regarding how the selector "prevents" the disconnector from engaging the hammer in forced reset mode?
• A central question for damages will be one of imputed knowledge: can Plaintiffs prove that the defendants, a reseller and its principals, had the requisite knowledge of the asserted patents to support a finding of willful infringement, based on the allegation that their supplier hosted a publicly accessible webpage containing links to those patents?