New Luth-AR Modular Trigger Assembly -The Firearm Blog

Triggers for AR15 rifles: a simple yet so complex subject with as many opinions as there are people. Luth-AR now has a new single-stage drop-in trigger which is said to give a crisp, clean trigger break at around 3.5 lb. The drop-in functionality is something I really appreciate when building a rifle, as it saves me a lot of time and frustration. So far, I had no complaints or difference in feel between a drop-in trigger or one I installed all the parts in manually. The price for their new Modular Trigger Assembly is $149.95, which seems very competitive.

Luth-AR Modular Trigger Assembly

Here’s what Luth-AR has to say about their new MTA:

Introducing the MTA™ — Modular Trigger Assembly™

Luth-AR MTA™ Trigger

High quality AR-15 drop-in trigger.

When it comes to a performance trigger in an AR platform you have two choices, find a qualified gunsmith and pay them to perform a custom trigger job from stock trigger parts, or simply drop-in a Luth-AR MTA™ trigger ready to go. The MTA™ housing is made from 6061 Hardcoat Anodized Aluminum. The internals are precision cut from EDM process using A2 tool steel and heat treated to 40-45 HRC, and utilize SST bushings and springs resulting in a crisp 3 1/2 lb trigger break.


  • Single Stage Drop-In Trigger
  • Compatible with .22, .223/5.56mm, .30 cal
  • 3.5 lb Pull Weight approximately
  • Complete Drop-in Assembly
  • Crisp, clean trigger break


  • Trigger housing: 6061 Aluminum
    • Hardcoat Anodized – Black
  • Hammer, Trigger, Disconnector: A2 tool steel
    • Heat treated to 40-45 HRC
    • Black Nitride Finish
  • SST Bushings and springs
  • EDM machined internals

Note: Length of trigger may interfere with certain after market trigger guards.

Visit for purchase information.

Luth-AR Modular Trigger Assembly

You may also like the updated Luth-AR MBA-5 Buttstock for AR Carbines.

There is a direct link to the new Luth-AR trigger here. Do you prefer to build your own trigger or use a drop-in one?

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