FailZero AR-15 Semi Auto Drop-In Trigger 3.5Lb EXO Coated Nickel Boron

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The Fail Zero Drop In Trigger Group is a high performance, cost effective upgrade for standard Mil-Spec triggers. This one piece drop in unit is designed to be a replacement for heavy mil-spec triggers. The fully assembled and self contained unit features the FailZero Nickel Boron coated components. The Outer housing is made from 8625 aluminum and the unit is manufactured to strict AS9100 aerospace standards. The trigger will have a sharp break with a short reset and excellent reliability in even the toughest of conditions.

Specifications and Features:
Fail Zero AR-15 Semi Auto Trigger Group FZ-TRIGGER-GRP-01
Single-stage trigger system
3.5-lb. pull weight
Clean break with a short reset
Comfortable, rounded trigger
CNC machined from high-grade, heat-treated tool steel and aluminum
KNS pins recommended but not required
Overall Weight 2.6 ounces
Nickel Boron Coated
Note: The set screw should not be tampered with. Any attempts to modify the trigger will void the warranty.

Fits most .308 and .223 AR style platforms (Not for use in Sig MPX)


Failzero Exo Coated Trigger Group, For Ar15, 3.5lb Pull Weight, Single Stage, Nickel Boron Finish, Not For Use In Sig Mpx Fz-trigger-grp-01

Model: AR-15
Product Type: Trigger
Finish/Color: Nickel Boron Coated

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  • 5
    Great drop in fire control group!

    Posted by Ian on Jul 25th 2018

    Light, crisp release. Easy install, shipped fast. All surfaces are highly polished providing a very smooth pull. At about half the cost of other drop in FCGs on the market this is a great upgrade at a fair price. Installed on a 6.5 Grendel build and I am very pleased. I am using this for mostly target and hunting purposes.