CNC Kabuto FRT — Fully CNC Machined with CNC Metal Selector

CNC Kabuto FRT — Fully CNC Machined with CNC Metal Selector | AR-15

Free Polymer

$149.99

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CNC Kabuto FRT — Fully CNC Machined with CNC Metal Selector | AR-15

$149.99

Selector Free Polymer Single-Sided CNC – Black Ambi CNC – Black Ambi CNC – Red Ambi CNC – Blue Ambi CNC – Gold

CNC Machined Housing · CNC Metal Selector · Single-Sided or Ambi · Zero Printed Parts

This is the CNC Kabuto FRT, the highest-grade Kabuto we have ever carried. The housing is CNC machined from 6061 aluminum and anodized red. The lever, activator and pin are CNC and EDM cut from S136 steel, then hardened and blackened. And for the first time on any Kabuto we sell, the selector is CNC machined metal too. No printed housing. No printed selector. Nothing in the fire control path that can snap or soften.

Build it your way: run the one-piece single-sided CNC selector, or step up to the ambidextrous 3-position CNC selector in black, red, blue or gold.

Choose Your Selector

Single-Sided CNC (Black)One-piece machined metal selector. Clean, low-profile and built to take real torque.

Ambi CNC: Black, Red, Blue or GoldFully ambidextrous 3-position control from both sides of the receiver, with stepped levers for a positive grip. Match the red housing or make it pop.

What's New on This Kabuto

Pre-trimmed, beveled housingTrimmed from the factory to fit more lowers and uppers. The top edge is beveled so your upper closes down easier.

Threaded 5.5 mm pinThreads in for an easier install and stays put. No more chasing a pin that walks out.

Front lever blockerStops the lever from falling forward and getting stuck under the hammer.

CNC metal selectorA machined metal selector, single-sided or ambi. The part that breaks on printed kits is now solid metal.

Specifications

Type	Drop-in forced reset trigger device, Kabuto pattern
Housing	CNC machined 6061 aluminum, anodized red
Lever, activator and pin	CNC and EDM cut S136 steel, hardened and blackened
Pin	5.5 mm threaded
Selector	CNC machined metal: single-sided (one piece) or ambidextrous 3-position
Selector options	Single-sided: black · Ambi: black, red, blue or gold
Positions	Safe · Semi · Forced Reset
Printed parts	None
Platform	AR-15

Fitment: Read Before You Install

The Kabuto works off the top of your lower receiver, so the distance to the safety and trigger is different on every lower. That's why no single activator length fits every rifle. The housing is pre-trimmed to fit as many lowers and uppers as possible, but tolerances vary from manufacturer to manufacturer, so some rifles will need minor shaving.

Activator length check: the bottom tip of the activator presses the trigger down to reset it. If the tip is too long, it can't travel all the way down and pushes the whole assembly up, which binds the bolt.

To test: push the lever all the way back into the reset position, then look at how the housing sits. If the housing lifts, the activator tip is too long. Shave the bottom tip a little at a time until the housing stays seated.

Watch: Full Kabuto Install and Tuning Walkthrough

This full-length walkthrough covers how the Kabuto works, how to fit it, and how to tune the activator length for your lower. Watch it once before you install.

Required hardware

M16-profile (full-auto cut) BCG. We run the MPI Nickel Boron M16-Cut BCG.
Heavy buffer, H2 minimum and H3 preferred. Shop AR-15 buffers for FRTs.
Full-power ammo. Underpowered loads may not cycle far enough to engage the reset.
Function-check on Safe, Semi and Forced Reset before live fire.