Key Highlights

• Patent-pending ARC Technology: Forces immediate trigger reset after each shot for faster follow-up shots.
• Ambidextrous Selector: Fast, intuitive access for both right- and left-handed shooters.
• Three-Position Control: Safe / Semi / ARC mode for quick transitions and adaptable performance.
• Precision Materials: Tool-steel internals and 4140 steel selectors for durability under sustained use.
• Multi-Platform Compatibility: Supports numerous popular platforms with additional kits where required.

How ARC-Fire Works

The ARC-Fire’s Active Reset Clutch (ARC) system mechanically forces trigger reset after each shot. This produces a consistent, tactile reset and helps maximize cadence while keeping control predictable—ideal for training, competition, and performance-focused builds.

Ambidextrous Controls & Selector Positions

• Fully Ambidextrous Selector: Designed for smooth operation from either side.
• Selector Positions: Safe, Semi, and ARC mode.
• Positive Tactile Feedback: Engineered for confident transitions even under stress.

What’s Included

• M2 tool steel ARC Cam
• M2 tool steel ARC Lever
• M2 tool steel ARC Detent Bar
• 4140 steel ARC Primary Selector
• 4140 steel ARC Ambi Selector
• Pre-cut trigger and standard safety detent

Finishes

• DLC coating on Cam, Lever, and Detent Bar
• Black Oxide coating on Selector Levers

Trigger Compatibility

Compatible (SS Cut Required Where Noted)

• Most Mil-Spec triggers w/ SS Cut
• Geissele triggers w/ SS Cut (SSA, SSA-E, SSA-E X, SSA-X, SD-E, SD3G, SDC, SSP, S3G, G2S)
• ALG Defense QMS / ACT (w/ SS Cut)
• BCM PNT trigger (w/ SS Cut)
• PSA Enhanced Polished Trigger (EPT) (w/ SS Cut)
• Aero Precision FCG (w/ SS Cut)
• CMMG FCG (w/ SS Cut)
• Anderson Stainless FCG (Cut Hammer Version) w/ SS Cut*

*Note: Some triggers require an additional “lever blocker” part to prevent overtravel. NSPEC Innovations will offer these in metal and can provide an STL file if you prefer to 3D print your own.

Known Incompatible Triggers

• LaRue Tactical MBT-2S
• CMC Single Stage (Flat/Curved)
• Rise Armament RA-140

Platform Compatibility

Supported Platforms

• AR-15 Platform: .223/5.56, 300BLK, 9mm, 10mm, .45, .40
• MP5 Platform: Fits AR-based MP5 lowers (some lowers require selector-area cutout; standard support expanding)
• G3/91 Platform: Similar fitment considerations as MP5
• JAKL-15: .223/5.56, 300BLK (requires JAKL-15 Slip Trip Kit)
• JAKL-9: 9mm (requires JAKL-9 Slip Trip Kit)
• MPX: 9mm (excluding Copperhead) (requires MPX/MCX Slip Trip Kit)
• MCX: .223/5.56, 300BLK, 7.62x39 (requires MPX/MCX Slip Trip Kit)
• Kuna: 9mm (requires AS Designs Kuna Lower Kit; Nexus compatibility unconfirmed)
• Stribog: 9mm, 10mm, .45 (requires AS Designs Stribog Lower Kit)
• Dissent: .223/5.56, 300BLK, 9mm, .45, 5.7 (requires Dissent Slip Trip Kit)
• Dissent: .308, 8.6BLK (requires Dissent Slip Trip Kit + Custom ARC Lever)
• HK MR556A1/A4: No changes needed; does not require a different bolt carrier

Upcoming Platform Support (Finalizing)

• JAKL-10 (.308) — requires JAKL-10 Slip Trip Kit + Custom ARC Lever
• BRN-180 (.223/5.56, 300BLK) — requires BRN-180 Slip Trip Kit + Custom ARC Lever
• UMP (.45) — requires AS Designs UMP Lower Kit
• GHM9 (9mm) — requires AS Designs GHM9 Lower Kit
• APC9 (9mm) — TBD
• APC45 (.45) — TBD
• MCX (.277, .308) — requires MCX Heavy Slip Trip Kit + Custom ARC Lever (TBD)
• SCAR — TBD