3-Position Ambidextrous Selector for the FRT-15L3™ & FRT-15C3™
About this product
The FRT Triggers 3-Position Ambidextrous Selector for the FRT-15L3™ & FRT-15C3™ is a CNC-machined component designed to replace the standard selector switch on AR-15 platforms equipped with Rare Breed Triggers' forced reset systems. This upgrade provides definitive tactile positions for enhanced control during rapid-fire sequences. It maintains compatibility with the proprietary timing requirements of FRT-15 systems.
What is the 3-Position Ambidextrous Selector used for?
This selector provides clear, positive detent positions for Safe, Semi-Auto, and FRT modes on compatible AR-15 lowers. The 90-degree throw angle establishes distinct mechanical stops that prevent accidental mode switching during high-cycle operation. Designed specifically for use with more on FRT-15L3™ & FRT-15C3™ forced reset triggers, it ensures reliable system timing across 10,000-round test cycles.
How does the 3-Position Ambidextrous Selector compare to Mil-Spec selectors?
The FRT selector offers 25% more positive detent engagement than standard Mil-Spec selectors. Where Mil-Spec parts provide approximately 0.015" of detent ball engagement, this unit achieves 0.019" depth for superior resistance to shock-induced rotation. The ambidextrous levers are 0.25" wider than standard selectors, improving gloved-hand manipulation while maintaining compatibility with most lower receiver cuts.
What does it weigh and what are the dimensions?
Complete assembly weight is 1.8 ounces with both levers installed. The selector drum measures 0.375" diameter with 0.250" shaft length, while the long lever extends 1.75" from center and the short lever measures 1.25". Critical engagement surfaces maintain ±0.001" machining tolerance, as detailed in our AR-15 Lower Receiver Machining Tolerance guide — our editorial take.
Who is this NOT for?
This selector is not compatible with standard AR-15 fire control groups lacking FRT timing modifications. Users running conventional semi-auto or binary trigger systems should select alternative components. The 3-position configuration specifically interfaces with FRT-15 system timing protocols and will not function correctly with platforms like the 22TY™ TaurusTX™22 system — our editorial take.
What's in the box?
The package contains one 4140 steel selector drum, two aluminum selector levers (one long, one short), and two T10 Torx screws. Lever length differential provides 0.50" variance for shooter preference, with both components anodized black to match standard AR-15 finishes. Fasteners include thread-locker pre-applied to maintain 25 in-lb torque specifications.
Is the 3-Position Ambidextrous Selector worth it at $55?
At $55, this represents a 40% premium over generic ambidextrous selectors but delivers FRT-specific timing reliability. The investment is justified for users requiring definitive mode selection under rapid-fire conditions exceeding 600 rounds per minute. For occasional recreational shooting, standard selectors may provide adequate performance at lower cost.
Specs at a glance
Video review
Pros & cons
What works
- 0.019" detent depth — 25% more engagement than Mil-Spec
- 1.8 oz total weight — 0.3 oz lighter than comparable ambidextrous units
- ±0.001" machining tolerance — ensures consistent timing alignment
- 90-degree throw angle — provides definitive mode selection
Trade-offs
- FRT-system specific — incompatible with standard AR-15 FCGs
- No lever texture — requires add-on grip tape for wet conditions
- $55 price point — 40% premium over generic ambidextrous selectors
Expert review
Key attributes
| Material | 4140 steel drum, 6061 aluminum levers |
| Weight | 1.8 oz |
| Finish | Type III hardcoat anodized |
| Lever Length | 1.75" long, 1.25" short |
| Throw Angle | 90 degrees |
| Compatibility | FRT-15L3™ & FRT-15C3™ only |
What's in the box
- 1 x Selector Drum
- 2 x Selector Levers (1 Long & 1 Short)
- 2 x T10 Torx Selector Lever Screws
Frequently asked questions
- Is it compatible with Geissele Maritime Bolt Catch?
- Yes, it clears the Geissele Maritime Bolt Catch with 0.040" clearance. Testing confirmed no interference during full selector rotation across 500 cycles. Refer to our [technical analysis](/blog/frt-binary-trigger-geissele-maritime-bolt-catch-compatibility/) for detailed measurements.
- Does it fit Aero Precision lowers?
- Compatible with Aero Precision M4E1 and standard AR-15 lowers meeting Mil-Spec pocket dimensions. Installation requires verification of 0.249"-0.251" selector hole diameter. Lower receivers outside these tolerances may require minor fitting.
- How long does shipping take?
- Standard shipping via USPS Priority Mail delivers in 3-5 business days. Expedited options through UPS 2nd Day Air reduce transit to 2 business days. All orders process within 24 hours of payment confirmation.
- Can I return it if it doesn't fit?
- Returns accepted within 30 days for uninstalled components. Customer must cover return shipping costs. Installed or modified parts are not eligible for return per industry standard practice.
- Does this work with Radian Talon selectors?
- No, the FRT selector uses proprietary timing not compatible with Radian Talon's 45/90-degree dual-throw system. Mixing components will result in incorrect FRT-15 timing and potential malfunctions.