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:
Fits most .308 and .223 AR style platforms (Not for use in Sig MPX)
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:
Fits most .308 and .223 AR style platforms (Not for use in Sig MPX)
2 Ratings
PIECE OF JUNK
This product is not worth your time or hard earned money. Sure it did what the box says, but not for very long. I have maybe 300-400 rounds with it in the gun and it's already useless. What is happening is the trigger is not resetting properly and will release the hammer when you let out the trigger. This is a potential safety issue because if it were to strike the firing pin it could theoretically set a round off. This is not an unknown problem and has been addressed in other reviews and on forums. I have contacted their customer service about the issue and it has now been two weeks since I emailed them and the one reply I did get had no indication of taking the issue seriously. If I don't get a response soon from them I may post a YouTube video to re-emphasize just how significant of a failure this problem is. It's a good thing I didn't have to use this to defend myself because this will get you shot if this happens in a self defense scenario. I cannot emphasize this enough. DO NOT BUY!!! Pros: NONE Cons: BREAKS QUICKLY
August 2, 2020
Run, don't walk, RUN!
Installed this nice looking unit into my rifle with no problems. Works just fine.....about 70% of the time. Many lite strikes with various commercial ammo types. Tried to contact Fail Zero directly for help via their web site. No reply. Ever. None.
June 6, 2019
Would this fit in a 5.56 platform? And is it heavy duty?
Answer:
It will fit in any AR-15. This is a high quality trigger group.
What are KNS pins? Are they included?
Answer:
KNS is a brand name for non-rotating trigger and hammer pins. They are not included. Our item number is ARR-371.