Assembled Kabuto Drop-In (Edited Version)
Kit includes
• 3D Printed Carbon Fiber Nylon Three Position Selector
• Assembled Steel Internal Activator and Lever with a 3D Printed Carbon Fiber Nylon Housing
Compatibility
This drop-in is designed only for the AR-15 platform — it will not work in a CMMG .22 or an AR-9, as those use different levers. Mil-spec triggers are the only triggers fully confirmed for compatibility at this time; your mil-spec trigger does not require modification and will work as-is once the unit is fitted correctly. Other trigger types may work but are untested.
The system has been successfully fitted to many popular AR-15 builds, including PSA, Aero Precision, Anderson, Daniel Defense, Core15, and DPMS. While these brands have been tested and do work, we cannot guarantee fitment in every rifle platform.
These require an M16 bolt carrier groups, and an H3 non-solid buffer weight to function as intended.
Installation & Fitment Notes
On the assembled version, there are two prongs on the drop-in that push both sides of the trigger to cause it to reset. If the part won’t fully seat during installation, the smaller prong on the right is usually contacting the disconnector. Gently bend that leg outward a small amount with pliers so it clears the disconnector, and the rifle will close. This feature is intentional — the design prevents the unit from being modified or functioning like a DIAS.
Break-in & Finish
These are raw parts. Normally, cycling and dry-firing the unit 10–20 times in both modes helps wear off any rough edges, allowing the parts to better mate with your rifle’s tolerances. If you prefer not to cycle/dry-fire, the bottom of the lever may require light polishing. Each lever is tumbled in a deburring/polishing media before shipping.
Buffer Requirement
A heavier buffer weight (H2–H3) is required — do not use a solid buffer.
Safety / Use
Remember: this is an FRT. Do not hold the trigger down like a full-auto — doing so will cause premature wear and may ruin the drop-in.
Shipping & Checkout
Please allow 1-3 days for assembly time. Also, please double-check your shipping information before checkout!
107 Reviews Hide Reviews Show Reviews
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Drop in FRT
This is an update on a previous review that I was unable to give 5 stars. If I could give it 10 stars I would. After installing a Tromix H3 buffer specifically designed for FRT this product exceeded my expectations in every way. Only thing I wish was different was a metal selector switch. Can't say enough good things about this product
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Amazing
Just down right amazing easy install and very fun. But for some reason I don’t have semi auto just all or nothing, both semi and the 3rd position do frt mode. Other than that well worth it
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The best
Best drop in I’ve ever tested.
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This is an AMAZING COMPANY
I had heard nothing but great things about Super Safe Solutions. When I got my Kabuto Drop in I didn’t know they offered a metal safety selector. I’ll definitely be back for more truly a great product.
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Drop in frt
I have two of these Kabuto FRTand they are amazing...
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Work on my black rain 300 BLK ar15
No modifications needed
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Drop in FRT
2nd frt I've purchased, first from this company. This one seems like a lot more thought and preparation went into its development. As mentioned the pin is oversized for a tight fit. I gently filed it to make it fit in a fresh build and followed recommended the seating procedure. As suggested in the instructions I expected a few hiccups. After 3 feeds semi auto it worked perfectly. Moved to super safe position I was able to get a 3 rd burst and after that it was one shot feed and nothing but a light primer strike after that. I will take it back out and massage the pin some more as I feel it is to tight now or my hammer spring is weak. Overall I'm happy with the look and construction on the unit. I just wish FRT's where a little more plug and play. Will update my review when I have time to give it a little more love. I've been building AR's since 1993 so this isn't my first forte in the weapons platform.
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Kabuki frt
I was confident with my choice of company to send me a frt for my platform super safe solution sent my order my package came with a card with a QR code to help troubleshoot the platform big help I’ll be doing a video soon on the trigger and I’ll tag you guys in it
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FRT Super Safety
Love it shot 300 rounds in my Radical Arms AR15 556 . Not one jam or mis fire
