SKU: 43265372567

The Back Door: Combat Troodon Gen III S/E OTF Automatic Knife – Marbled Blue Aluminum Handle, 4″ Bohler M390MK (1143-10 MBL) (Used)

Sale price$135.00 Regular price$150.00
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Description

The Back Door: Combat Troodon Gen III S/E OTF Automatic Knife – Marbled Blue Aluminum Handle, 4″ Bohler M390MK (1143-10 MBL) (Used)Back Door Entry. Still Dangerous. This is a used Microtech Ultratech D E Gen IV in Blue with a Stonewash Standard double edge blade. It is in great condition and fully functional, with strong deployment and solid lockup just as youd expect from a Gen IV Ultratech. The Ultratech is Microtechs flagship OTF platform, and the Gen IV refinements continue to make it one of the most trusted out the front automatics on the market. Condition Used Great overall

Back Door Entry. Still Dangerous.

 

This is a used Microtech Ultratech D/E Gen IV in Blue with a Stonewash Standard double edge blade. It is in great condition and fully functional, with strong deployment and solid lockup just as you’d expect from a Gen IV Ultratech.

The Ultratech is Microtech’s flagship OTF platform, and the Gen IV refinements continue to make it one of the most trusted out-the-front automatics on the market.

 

 

 

Condition

• Used

• Great overall condition

• Strong, reliable double-action deployment

• Typical light signs of handling, if any

• No known functional issues

If you’d like additional photos or specific detail shots before purchasing, just reach out.

 

 

 

Why the Ultratech Still Leads

The Ultratech remains the benchmark for American-made OTF knives. The Gen IV platform refines ergonomics and internal geometry while maintaining the durability Microtech is known for.

The double edge blade provides symmetrical performance with a clean, aggressive profile, while the stonewash finish helps hide wear from use.

Blue anodized handles give this one a sharp, confident look without being over the top.

 

 

 

Specifications

• Brand: Microtech

• Model: Ultratech D/E Gen IV

• Model Number: 11224-10 BL

• Blade Style: Double Edge

• Blade Finish: Stonewash Standard

• Blade Length: Approximately 3.4″

• Handle Color: Blue

• Action: Double-Action Out-The-Front Automatic

• Country of Origin: USA

 

 

 

Why Used Still Matters

We don’t always get to choose products made in the USA. Most categories simply don’t offer that option anymore. Pocket knives are different. There is still a strong American manufacturing base building tools like this right here at home.

Whether new or used, supporting American knife makers helps ensure that continues.

If you’ve been looking for a clean Ultratech at a more accessible entry point, this is a strong one.

Shipping Notes
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Exchange/Return Notes
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SKU: 43265372567

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Krystin
Draper, US
★★★★★ 5
Repeat customer
Size: One Size, Color: Black
These wallets are indestructible...well unless my son loses it, which he does quite often. (Teenagers ammi right 🙄) So I've been a repeat customer. He always asks for another carhartt
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Reviewed in the United States on March 16, 2026
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Reedo1985
Charlottesville, US
★★★★★ 5
Tough quality. Nice wallet
Size: One Size, Color: Black
Good wallet. It's a Carhartt so it should last 6 years like my last one
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Reviewed in the United States on April 24, 2026
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Addison Manley
Louisville, US
★★★★★ 4
Good quality, bad packaging
Size: One Size, Color: Black
Really good quality. It last a lot time but it came with the lid off. Like it was loose in the box so the packaging was not great but quality is good!
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Reviewed in the United States on November 18, 2025
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PJD
Belleville, US
★★★★★ 5
SIMPLY PERFECT
Size: 30mm, Color: Brown/Silver-Tone/White/30mm
If you can appreciate a watch that simply tells time, buy this beautiful watch. The band is made of quality leather, it’s easy to adjust to fit and stays in place. The watch face is clean, bright and easy to read the accurate time. The functionality to light the face by pressing the wind button in is a thoughtful feature. The watch is water “resistant” (you can wear the watch when washing dishes), but I wouldn’t shower with it on or submerge it in water just in case. This watch accessorizes with anything I’m wearing in an understated way. TIMEX is a time-proven quality watch maker and this particular watch is a great value! I highly recommend this simply perfect and beautiful watch.
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Reviewed in the United States on January 5, 2026
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Sandra
San Leandro, US
★★★★★ 5
Love this!
Size: 30mm, Color: Brown/Silver-Tone/White/30mm
Love this. It’s easy to read, but not too big. Just what I wanted. Love the band too!
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Reviewed in the United States on May 13, 2026

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