ABC IP LLC v. Redacted Arms LLC A Pennsylvania Ltd Liability Co

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: ABC IP, LLC (Delaware) and Rare Breed Triggers, Inc. (Texas)
  • Defendant: Redacted Arms LLC (Pennsylvania)
  • Plaintiff's Counsel: Fish & Richardson P.C.
• Case Identification: 5:26-cv-03669, E.D. Pa., 05/28/2026
• Venue Allegations: Venue is alleged to be proper as the Defendant resides in, has committed acts of infringement in, and maintains a regular and established place of business within the Eastern District of Pennsylvania.
• Core Dispute: Plaintiffs allege that Defendant's "Super Safety" line of firearm trigger mechanisms infringes five patents related to "forced reset" trigger technology.
• Technical Context: The technology at issue involves mechanisms for semi-automatic firearms that use the reciprocating motion of the bolt carrier to mechanically reset the trigger, enabling a faster potential rate of fire than standard trigger designs.
• Key Procedural History: The complaint does not mention any prior litigation, inter partes review (IPR) proceedings, or licensing history between the parties.

Case Timeline

Date	Event
2021-11-05	Priority Date for '784 Patent
2022-01-10	Priority Date for '403 Patent
2022-09-08	Priority Date for '247 Patent
2022-09-08	Priority Date for '159 Patent
2023-12-04	Priority Date for '538 Patent
2024-07-09	'784 Patent Issued
2024-07-16	'247 Patent Issued
2026-01-20	'538 Patent Issued
2026-03-17	'159 Patent Issued
2026-05-26	'403 Patent Issued
2026-05-28	Complaint Filed

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

U.S. Patent No. 12,038,247, "Firearm Trigger Mechanism," issued July 16, 2024

The Invention Explained

• Problem Addressed: The patent describes that standard semi-automatic triggers limit the rate of fire because a user must consciously release the trigger to reset the mechanism before firing the next round Compl. ¶¶18-19 '247 Patent, col. 1:21-48 Methods like "bump firing" to increase this rate are imprecise and rely on the firearm's recoil rather than a controlled mechanical process '247 Patent, col. 1:40-54
• The Patented Solution: The invention introduces a trigger mechanism with a selectable "forced reset" mode. In this mode, the rearward movement of the bolt carrier during the firing cycle pivots a cam, which in turn physically forces the trigger member back to its reset position '247 Patent, abstract '247 Patent, col. 2:55-68 This allows the user to fire the next round without needing to manually release and reset the trigger, as a separate safety selector component prevents the disconnector from catching the hammer, which would otherwise halt the firing sequence until the trigger is released '247 Patent, col. 3:1-11
• Technical Importance: This technology provides a self-contained, mechanical method to significantly increase the potential rate of fire of a semi-automatic firearm, distinct from user techniques like bump firing.

Key Claims at a Glance

• The complaint asserts independent claim 15 Compl. ¶¶32-33
• The essential elements of claim 15 include:
  • A standard fire control group comprising a hammer, a trigger member, and a disconnector.
  • A cam with a cam lobe, movable between a first position (for standard semi-automatic mode) and a second position where the cam lobe forces the trigger member towards its set position (for forced reset mode).
  • A safety selector for pivoting between safe, standard semi-automatic, and forced reset semi-automatic modes.
  • In standard mode, the disconnector catches the hammer, requiring manual trigger release to reset.
  • In forced reset mode, the cam forces the trigger to its set position, and the safety selector prevents the disconnector from catching the hammer, allowing the user to fire again without manual trigger release.
• The complaint does not explicitly reserve the right to assert dependent claims but alleges infringement of "one or more claims" Compl. ¶32

U.S. Patent No. 12,031,784, "Adapted Forced Reset Trigger," issued July 9, 2024

The Invention Explained

• Problem Addressed: Forced reset trigger mechanisms designed for one firearm platform (like the AR-15) may not be compatible with others (like the AR-10) due to different physical dimensions and spacing between the bolt carrier and the trigger components '784 Patent, col. 1:20-32 Specifically, a locking member tall enough to be actuated by an AR-10's bolt carrier would physically interfere with the carrier's movement as it cycles rearward '784 Patent, col. 1:38-44
• The Patented Solution: The patent discloses a trigger locking device with a "separately movable" upward extension. This extension is long enough to be actuated by the bolt carrier as it moves forward into battery, but it is also designed to "deflect or fold" out of the way when contacted by the bolt carrier moving rearward, thus preventing interference '784 Patent, abstract '784 Patent, col. 2:45-49 The embodiments show this achieved via a one-way hinge mechanism '784 Patent, fig. 7 '784 Patent, col. 4:26-34
• Technical Importance: This design allows a forced reset trigger system to be adapted for use across multiple firearm platforms with different bolt carrier geometries, enhancing its modularity and application.

Key Claims at a Glance

• The complaint asserts independent claim 1 Compl. ¶¶46-47
• The essential elements of claim 1 include:
  • A locking member movable between a first (locked) and second (unlocked) position.
  • The locking member is configured to be movably supported by a frame.
  • It includes a generally upward extension portion configured to make actuating contact with a bolt carrier surface, causing the locking member to move from the first to the second position.
  • Crucially, the locking member has a movably supported body portion and an "upwardly extending deflectable portion that is separately movable relative to the body portion."
• The complaint does not explicitly reserve the right to assert dependent claims but alleges infringement of "one or more claims" Compl. ¶46

Multi-Patent Capsules

• U.S. Patent No. 12,529,538, "Safety Mechanism for Firearm," issued January 20, 2026

  • Technology Synopsis: This patent describes a safety mechanism centered on a multi-mode "cam selector" '538 Patent, abstract The selector has distinct recesses on its bottom side that interact with the tail of the trigger, enabling it to operate in three modes: a standard semi-automatic mode, an "active reset" mode where rotation of the cam selector forces the trigger to reset, and a safe mode that physically prevents the trigger from being pulled Compl. ¶23
  • Asserted Claims: Claim 1 Compl. ¶60
  • Accused Features: The complaint alleges the Super Safety product includes a "dual mode cam selector" with multiple recesses that allows for selection between "safe, active reset, and passive reset modes," directly corresponding to the patent's teachings Compl. ¶62, pp. 42, 47

• U.S. Patent No. 12,578,159, "Firearm Trigger Mechanism," issued March 17, 2026

  • Technology Synopsis: As a continuation of the application leading to the '247 Patent, this patent also describes a firearm trigger mechanism for accelerating the rate of fire '159 Patent, Related U.S. Application Data It discloses a device using a cam, rotated by the cycling of the firearm's action, to force the trigger member to its reset position, and is selectable between a standard semi-automatic mode and a forced reset semi-automatic mode Compl. ¶21 '159 Patent, abstract
  • Asserted Claims: Claim 1 Compl. ¶74
  • Accused Features: The complaint alleges the Super Safety operates in both a standard semi-automatic mode and a forced reset semi-automatic mode, directly mapping to the two modes claimed in the patent Compl. ¶76, p. 56

• U.S. Patent No. 12,636,403, "Firearm Trigger Mechanism," issued May 26, 2026

  • Technology Synopsis: This patent claims a device with a safety selector that enables switching between a "standard disconnector semiautomatic mode" and a "forced reset" mode Compl. ¶24 In the forced reset mode, the cycling of the action causes the hammer to mechanically reset the trigger member, allowing for an increased rate of fire '403 Patent, abstract
  • Asserted Claims: Claim 38 Compl. ¶88
  • Accused Features: The Super Safety is alleged to have a safety selector movable between a standard semi-automatic position and a forced reset semi-automatic position, which is the central feature of the asserted claim Compl. ¶90, p. 75

III. The Accused Instrumentality

Product Identification

• The accused instrumentality is the "(3-Position) 'Super Safety'," a firearm trigger mechanism sold by the Defendant Compl. ¶27

Functionality and Market Context

• The complaint alleges the Super Safety is sold for the AR-15 platform in various forms, including as a "partial kit," a "complete kit," and pre-installed in a firearm receiver Compl. ¶28, a-c The product is described as a trigger upgrade that allows a user to switch between a standard semi-automatic mode (termed "disconnector mode") and a "forced reset semiautomatic with cam" mode by moving a safety selector Compl. ¶30 The complaint includes a screenshot from Defendant's website describing the product as providing "controlled trigger function" and "consistent operation" for users upgrading an existing rifle or completing a new build Compl. ¶29, p. 7

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:	The Super Safety is part of a forced reset trigger mechanism that functions as a cam to force the reset of the trigger and lock it during the cycle of operation.	¶34	col. 9:23-24
a hammer having a sear catch and a hook for engaging a disconnector and adapted to be mounted in a fire control mechanism pocket of a receiver	The Super Safety is installed with a hammer that has a sear catch and a hook for engaging a disconnector.	¶34	col. 8:43-45
a trigger member having a sear and adapted to be mounted in the fire control mechanism pocket to pivot...	The Super Safety is installed with a trigger member in the fire control mechanism pocket that has a sear and pivots on a transverse axis.	¶34	col. 8:50-54
a disconnector having a hook for engaging said hammer and adapted to be mounted in the fire control mechanism pocket to pivot...	The disconnector is adapted to be mounted in the fire control pocket to pivot and has a hook for engaging the hammer.	¶34	col. 8:62-64
and a cam having a cam lobe and adapted to be movably mounted in the fire control mechanism pocket,	The Super Safety has a cam with a cam lobe and lever adapted to be movably mounted in the fire control mechanism pocket. The complaint includes plaintiff-generated renderings of the cam component (Compl. ¶34, p. 19).	¶34	col. 8:1-3
whereupon in a standard semi-automatic mode, ... a user must manually release said trigger member to free said hammer from said disconnector...	In standard mode, the user must manually release the trigger member to free the hammer from the disconnector to permit the hammer and trigger to pivot to set positions.	¶34	col. 9:11-21
and whereupon in a forced reset semi-automatic mode, ... said disconnector hook is prevented from catching said hammer hook, ... the user can pull said trigger member to fire the firearm.	In forced reset mode, the cam is in the second position, and rearward hammer movement causes the disconnector hook to be prevented from catching the hammer hook, allowing the user to fire again.	¶34	col. 9:27-48

Identified Points of Contention

• Technical Question: Claim 15 requires a specific dual-functionality in forced reset mode: the cam lobe forces the trigger to its set position, and the safety selector prevents the disconnector hook from catching the hammer hook. A central evidentiary question for the court will be whether the accused Super Safety's "active" mode achieves this outcome through the precise mechanical interactions described in the claim. The analysis will likely focus on the interaction between the safety selector and the disconnector to determine if it performs the claimed "preventing" function.
• Scope Question: The claim recites distinct "standard semi-automatic" and "forced reset semi-automatic" modes. The court may need to construe the full scope of these terms based on the patent's specification. The infringement analysis will turn on whether the accused product's "disconnector mode" and "active safety mode" Compl. ¶30 fall squarely within the patent's definitions of these claimed operational modes.

'784 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
In a forced reset trigger mechanism, an extended trigger member locking device, comprising:	The Super Safety is part of a forced reset trigger mechanism and functions as an extended trigger member locking device. The complaint includes photographs of the Super Safety components (Compl. ¶48, p. 30).	¶48	col. 2:50-52
a locking member that is movable between a first position in which it locks a trigger against pulling movement	The Super Safety operates as a locking member and has a first position in which it locks the trigger member against being pulled.	¶48	col. 2:55-58
and a second position where it does not restrict movement of the trigger member,	The Super Safety is movable to a second position where it does not restrict movement of the trigger member.	¶48	col. 2:58-59
the locking member configured to be movably supported by a frame	The Super Safety is movably supported by a frame (the firearm's lower receiver).	¶48	col. 3:1-4
and including a generally upward extension portion configured to make actuating contact with a surface of the bolt carrier,	The Super Safety has an upward extending portion (lever arm) configured to make actuating contact with a surface of the bolt carrier.	¶48	col. 3:5-8
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...	The complaint does not explicitly break out this limitation, but alleges the overall device infringes. The patent describes the locking member as having a body portion (26) and a foldable extension portion (22) that pivots separately on a pin (24).	¶48	col. 2:60-65

Identified Points of Contention

• Scope Question: The core inventive concept appears to be a locking member with an extension that is "separately movable relative to the body portion." The patent's embodiments achieve this with a distinct pivot pin '784 Patent, figs. 2, 8 A primary point of contention may be whether the accused device's "lever arm" is "separately movable" in the claimed sense. If the accused device achieves deflection through the flex of a single, integral component rather than a multi-part hinged assembly, the case may turn on whether the term "separately movable" can be construed to cover such a unitary, flexible design.
• Technical Question: The claim requires that "actuating contact" with the bolt carrier causes the locking member to move from the locked to the unlocked position. The court will require evidence demonstrating that this specific cause-and-effect relationship occurs in the accused Super Safety as it operates within a firearm.

V. Key Claim Terms for Construction

'247 Patent (Claim 15)

• The Term: "forced reset semi-automatic mode"
• Context and Importance: This term defines one of the two key operational states of the invention and is central to the infringement allegation. The Defendant's liability will hinge on whether its "active safety mode" Compl. p. 26 falls within the court's construction of this term. Practitioners may focus on this term because its definition is not merely functional but includes a specific sequence of mechanical events.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The abstract describes the outcome more broadly as a mode where "rear-ward movement of the bolt carrier causes... the trigger member to [be forced] to the set position," without detailing the disconnector interaction '247 Patent, abstract
  • Evidence for a Narrower Interpretation: The claim language itself provides a specific, two-part definition: (1) the cam forces the trigger to the set position, AND (2) "said safety selector preventing said disconnector hook from catching said hammer hook" '247 Patent, claim 15 The detailed description of this mode in the specification reinforces this narrow, specific sequence of operations ('247 Patent, col. 9:27-48).

'784 Patent (Claim 1)

• The Term: "separately movable"
• Context and Importance: This term describes the relationship between the "deflectable portion" and the "body portion" of the locking member. It is the key feature that allegedly allows the invention to overcome the geometric constraints of prior art designs. The infringement analysis will likely turn on whether the accused product's design, particularly its lever arm, meets this "separately movable" limitation.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The Summary of the Invention states the extension "deflects or folds" '784 Patent, col. 2:7-8 The use of "deflects" could suggest a broader meaning that includes bending or flexing of a single component, not just pivoting of a separate one.
  • Evidence for a Narrower Interpretation: Both illustrated embodiments show the extension portion (22, 50) connected to the body portion (26, 52) via a distinct mechanical pivot pin (24, 54) that allows it to move as a separate component '784 Patent, figs. 2-4 '784 Patent, figs. 8-10 A party could argue the claims are limited to structures with such distinct, separately articulated parts.

VI. Other Allegations

• Indirect Infringement: The complaint alleges both induced and contributory infringement for all asserted patents. The factual basis for inducement is Defendant's alleged provision of promotional materials, installation instructions, and videos on its website that encourage and instruct customers on how to install and use the Super Safety in an infringing manner (Compl. ¶¶35; 49; 63; 77; 91). The complaint includes screenshots of Defendant's "AR15 INSTALLATION" webpage, which features an installation video Compl. p. 25 Contributory infringement is alleged on the basis that the Super Safety components (e.g., the cam or cam lever arm) are specially designed for use in an infringing manner and are not suitable for substantial noninfringing use (Compl. ¶¶37; 51; 65; 79; 93).
• Willful Infringement: For each asserted patent, the complaint alleges that Defendant "has known or should have known" that its actions constituted infringement and that it "could not reasonably or subjectively believe that its actions do not constitute infringement" (Compl. ¶¶38; 52; 66; 80; 94). The allegations are based on the asserted objective likelihood of infringement and state that knowledge exists at least from the service of the complaint, supporting a claim for post-suit willfulness.

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

This litigation presents several interconnected technical and legal questions for the court. The outcome will likely depend on the resolution of these core issues:

• A question of definitional scope: Can the term "separately movable" from the '784 patent, which is exemplified by multi-part, hinged components, be construed to read on the accused product's lever mechanism if it operates via the flexure of an integral, single-piece component?
• An evidentiary question of operational equivalence: Does the accused Super Safety's "active" mode perform the specific, two-part mechanical function required by the '247 patent's "forced reset semi-automatic mode"-where the cam forces the trigger reset while the safety selector simultaneously prevents the disconnector from catching the hammer-or is there a material difference in its method of operation?
• A question of substantial non-infringing use: As the accused product is sold as a kit of components, the court will likely need to determine if these components, particularly the unique cam and selector, have any substantial non-infringing uses, a determination that will be critical to the claim of contributory infringement.