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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Kabuto in S&W M&P Sport II
Dropped the Kabuto into my M&P Sport II with a PSA upper, it didn’t sit perfectly flush but upon securing the upper and lower it was perfect, functioned amazingly, even with a standard carbine buffer (minor issues but working on getting an H2) would definitely recommend as an entry into the FRT world, most complicated part of the install is taking off the pistol grip!
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Kabuto Drop-in FRT
I could not be happier with my FRT. The price is awesome and the installation is simple. I had to tune it a little but not much. The guys at Super Safety answered every question I threw at them so the great customer service is a huge plus. I will be ordering the mini soon and the metal housing for it . Awesome work guys!
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Kabuto drop in
Easy installation with the YouTube video. Waiting to get to the range and test it out. Delivery was fast as well.
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Great product. Second one I got. First worked flawlessly. This came quickly. Well priced and super easy to put in. I am gonna get another one for my son. Recommend this product. First rate operation.
Waiting for you to make one for my .22 bore buddy.
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Supersafeco Kabuto FRT
works great, followed poorboysarms video and it functions as advertised. i would definitely recommend to anyone looking to upgrade their rifle.
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Great customer service!
Broke my selector before 1 round. Probably damaged it before getting tuned right. They sent me a replacement within days!
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FRT Super Safety
Easy to install and works great so far put 200 rounds through my PSA AR15 556. So much fun
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Drop-in FRT
It is worth the buy. Bought mine late last year. Shipped fast. Best gun related purchase I’ve made.
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Works Well
I am very pleased to leave this review. I followed the recommended procedure from the video and I am happy top say that I had no jams or malfunctions from the start. I used a PSA Lower with the recommended H3 Buffer. I followed the steps by pulling the charging handle 10 to 20 times, seating the FRT. Will recommend and purchase another.
