Description
The AR Super Safety D2 Curved Kit is a precision-engineered safety and trigger enhancement for shooters who want increased control, consistent performance, and faster follow-up shots. This system integrates an active assisted-reset mechanism that helps return the trigger forward after each shot, improving shot-to-shot efficiency for semi-automatic AR-pattern rifles.
For shooters who prefer more refined, slower, and highly precise fire, this model of the AR Super Safety trigger includes a dedicated passive mode that disables the assisted reset. This dual-mode design makes the D2 Curved Kit a versatile upgrade for tactical, recreational, and training-focused AR users seeking improved trigger responsiveness and consistency.
Every component in the kit is CNC-machined from premium tool steel, heat-treated, and finished with a durable DLC coating, ensuring long service life, smooth operation, and enhanced resistance to wear under high-use conditions.
Key Features & Performance Benefits
Enhanced Trigger Reset for Increased Efficiency
The AR Super Safety’s active reset assistance helps return the trigger forward after each shot, allowing for quicker, more controlled follow-up shots. This system is ideal for shooters who want:
- A smoother firing rhythm
- Less trigger fatigue
- Improved split times
- Better consistency during rapid engagement
The system’s design ensures that the trigger maintains predictable movement and dependable performance in a variety of shooting settings.
Dual-Mode Function: Active & Passive Operation
Unlike earlier models, the D2 Curved Kit introduces a selectable passive mode. This feature allows shooters to switch off the assisted-reset function when a more traditional or precision-focused trigger feel is desired.
This dual configuration provides flexibility for:
- Target shooting
- Precision marksmanship
- Controlled slow-fire drills
- Tactical scenarios requiring different trigger styles
High-Strength Tool Steel Construction
Each component is manufactured using high-grade tool steel and advanced CNC machining. Components are then heat-treated and DLC-coated to increase:
- Surface hardness
- Corrosion resistance
- Lubricity
- Overall long-term durability
This ensures the system withstands high-volume firing and remains smooth and dependable over time.
Required Components & Compatibility
For best results and safe function, the AR Super Safety D2 Curved Kit requires the following compatible components:
- M16-pattern BCG (bolt carrier group)
- Low-shelf or M16-cut lower receiver
- Machining services are available for high-shelf and Colt-pattern lowers.
- Dead-blow buffer weight
- The ideal weight varies depending on caliber, barrel length, gas system configuration, and whether a suppressor is used.
Barrel Length Recommendations
Testing has shown that firearms equipped with barrels shorter than 10.3 inches may experience reduced reliability when using the AR-SS system.
To ensure consistent operation and maximum reliability, we recommend installation on AR platforms with:
- 10.3-inch barrels or longer
- Properly tuned gas systems
- Compatible buffer weights
Performance cannot be guaranteed on platforms below the recommended barrel length.
What’s Included in the Kit
The AR Super Safety D2 Curved Kit includes:
- CNC-machined Milspec Curved Trigger
- Safety Cam assembly
- Safety Lever
- Rounded Detent
Each part is engineered and finished for smooth engagement, reliable cycling, and long-term stability.
Educational Insights: Understanding Assisted Trigger Reset Systems
The AR Super Safety D2 is designed for shooters who want more control over their trigger system. Here’s how it differs from standard triggers:
What Is Assisted Trigger Reset?
An assisted reset uses mechanical force to help the trigger move forward after firing. This reduces the amount of force your finger must apply to reset the trigger, resulting in:
- Quicker trigger engagement
- More controlled shot cycles
- Reduced shooter fatigue during extended sessions
Why Barrel Length Matters
Short-barreled ARs often operate with increased gas pressure and faster cycling. When combining these variables with an assisted-reset system, timing inconsistencies can occur. Maintaining a minimum 10.3-inch barrel ensures proper function and reliability across various shooting conditions.
What Makes DLC Coating Important?
DLC (Diamond-Like Carbon) coating provides:
- Reduced friction
- Improved corrosion protection
- Longer component life
- Smoother movement under stress
This makes it an ideal finish for components that experience repetitive mechanical motion, such as triggers and safeties.
Ideal For
- AR platform enthusiasts
- Tactical and training-focused shooters
- Those who want improved performance without sacrificing precision
- Users who appreciate dual-mode trigger flexibility








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