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Questions & Answers
Is this trigger compatible with the Sig MCX? Expert Answer

The LANTAC E-CT1 Single Stage 3.5lb Trigger is not compatible with the Sig MCX. The MCX uses a proprietary trigger and will not be compatible with AR15 pattern triggers. I would recommend the Geissele Super MCX SSA Trigger or the Triggertech SIG Sauer Adaptable Trigger. Both options can be found linked below:
https://www.opticsplanet.com/geissele-05658-super-mcx-ssa-m4-curved-bow-ar-style-steel-05-658.html
https://www.opticsplanet.com/triggertech-sig-sauer-mcx-adaptable-trigger.html

by Ethan, Gear Expert, October 8, 2024
Do I need to install a hammer with this trigger or is the hammer built into the trigger? Expert Answer

The LANTAC E-CT1 Single Stage 3.5lb Curved Trigger is a drop in trigger kit. It includes the hammer and all necessary components to drop in and go. It also comes with a pin set included with the trigger assembly.

by Ethan, Gear Expert, February 4, 2022
Customer Reviews
Helpful Positive Review
My favorite trigger by Wayne Mirka, Verified Owner, January 26, 2023
This is by far my favorite trigger. It is made by timney for lantac. The break is as crisp as glass… no take up. The install is like most drop-ins. It is one of the nicest triggers I have seen. I just hope the price doesn’t go up. Buy it when you can...
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1/1 found this helpful
Helpful Positive Review
Second one would buy again! by Rasco C., Verified Owner, November 15, 2023
The Lantac E-CT1 is a great single stage trigger that is crisp and responsive this is my second purchase of one and would problem buy one a third time great quality for the price definitely recommend to anyone looking for a drop in trigger only gripe...
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1/1 found this helpful
Helpful Positive Review
Great Trigger by Gus, March 16, 2024
Love the trigger so much I have 2. One for my AR9 and one for my 300 blackout. Both work great and the pull on both are great!
1/1 found this helpful
Helpful Positive Review
Great Trigger by stinky, Verified Owner, June 9, 2024
Hey this is a great trigger of course puttin in was a breeze simple and performance is sweet!! fun! accurate no BS . good buy worth the money
1/1 found this helpful
Helpful Positive Review
Very nice drop in by LTibbs77, Verified Owner, April 20, 2025
Feel is consistent and smooth with a very predictable break. Fit and finish feel flawless. Overall I feel really good about this purchase.
1/1 found this helpful
Helpful Positive Review
Love the trigger. Flat or curved, to each his/her own. I like flat trigger shoes but got this one curved and have zero complaints on response or shape. However, for this kind of money it’s amazing they don’t include anti walk trigger pins. I didn’t...
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16/18 found this helpful
Read All 11 Reviews

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Product Info for LANTAC E-CT1 Single Stage 3.5lb Trigger

Advanced performance meets precision machining and ultra slick styling in the shape of the new E-CT1 Single Stage Trigger from LANTAC.image

Available in both Hybrid Curve & Flat Bow designs to suit any shooters preference the E-CT1 is also offered in a variety of pull weights and configurations, meaning you can run it in a Duty Rifle or in competition at the range.

The trigger features massive improvements over the original with entirely different sear engagement surfaces that remove creep and deliver a super crisp break. Radically different internal geometry also creates insanely short reset and near non existent over travel that will greatly decrease split times and give you a big advantage over the competition.

The Hammer, Trigger & Disconnector are precision machined from S7 tool steel with a proprietary sear manufacturing process that yields an incredibly smooth engagement surface and all parts are then case hardened before Black Oxide finish.

The CNC machined Aluminum cassette has adjustment set screws built in that allows the user to set perfect pin tension and the trigger can be installed with standard pins or the threaded screw types seen in previous designs.

The cassette is Type 3 Hard Coat Anodized Class2 Black and then Laser engraved for identification.

Specifications for LANTAC E-CT1 Single Stage 3.5lb Trigger:

Manufacturer: LANTAC
Color: Black
Trigger Pull Weight: 3.5 lb
Gun Make: AR Platform
Included Accessories: Standard
Finish: Type III Hardcoat Anodized

Features of LANTAC E-CT1 Single Stage 3.5lb Trigger:

  • Comes complete with Trigger Assembly and Pin Set;
  • Manufactured and assembled according to strict AS9100 aerospace requirements and quality-assured with the latest technology inspection equipment ECT-1s are designed for use with AR receivers in 5.56/.223 or 7.62/.308;
  • Trigger mechanism manufactured by Timney Triggers

Package Contents:

  • LANTAC E-CT1 Single Stage 3.5lb Trigger

LANTAC E-CT1 Single Stage 3.5lb Trigger Orderable Models

List of Orderable Models

  • LANTAC E-CT1 Single Stage Trigger, Curved, 3.5lb, Black, 01-LP-ECT1C , MPN: 01-LP-ECT1C , UPC: 712038709816 , Code: 2D0-ART-ECT1C-01-LP-ECT1C
  • LANTAC E-CT1 Single Stage Trigger, Flat, 3.5lb, Black, 01-LP-ECT1F , MPN: 01-LP-ECT1F , UPC: 712038709823 , Code: 2D0-ART-ECT1C-01-LP-ECT1F
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Last updated 2026-07-24 UTC.