AR-15 Zero™ Trigger – Hybrid
From: $239.99
Email when stock available

ATTENTION: THE AR-15 ZERO TRIGGERS ARE NOT COMPATIBLE WITH 9MM AR’S OR AR-10’s.
WE ALSO DO NOT RECOMMEND USING THIS TRIGGER WITH MODIFIED BOLT CARRIER GROUPS OR BUFFER SYSTEMS. YOU MAY DAMAGE YOUR TRIGGER. PLEASE USE ONLY WITH MIL-SPEC CARRIERS AND BUFFER SYSTEMS.
The short 2mm reset makes the Zero hybrid trigger one of the fastest on the market. The reset is also positive, which facilitates even faster shooting during training or competition. The trigger, hammer, and disconnector are EDM cut and then polished with brass wire to a micron finish in all critical contact areas for a friction-less engagement. The pull-weight and disconnector set screws are also welded after loctite for safety and a lifetime of use.
Zero™ AR-15 hybrid triggers are available in Black Nitride and two pull weights: 3 lbs and 4.5 lbs. Black Nitride is a heat treatment process that enhances corrosion resistance, improves lubricity, and leaves a fine black finish on the surface of the metal.In short, all of the features of the Zero™ trigger are designed to offer a shooting experience that is exceptionally smooth, crisp, and fast.
*ANTI-WALK TRIGGER PINS ARE NOT INCLUDED BUT CAN BE PURCHASED HERE
*0.1540 inch diameter trigger pins are required. Undersized and out-of-spec trigger pins will cause the trigger to malfunction.
* Primary tension screw: Tighten to 8in-lbs (no Loctite)
* Secondary tension screws: Tighten to 14in-lbs (add blue Loctite)
Read Will P’s review at The Firearm Blog.
*Please allow 4-6 weeks for shipping on backorder items.*
- Short reset length: 2mm
- Forced reset: No
- Drop safe: Yes
- Design: Single stage drop-in trigger for the AR-15 platform
- Compatibility: Fits any AR-15 lower receiver properly machined to mil-spec dimensions
Frequently Asked Questions
To clean the ZERO trigger when the trigger is outside the rifle, we recommend using camp fuel or white gas. Fully soak your trigger inside a small container of white gas for about 5 minutes. Make sure the container is covered or has a lid. Use clean cotton patches to wipe off all carbon deposits from hammer, disconnector, and trigger.
To clean the ZERO trigger when the trigger is inside the rifle, we recommend using camp fuel or white gas. Place your lower receiver upside down where the hammer faces the workbench. Use a small squeeze bottle to squeeze white gas into the trigger. Repeat this step a few times until all surfaces inside the trigger housing are wet. Without any delay, rotate your receiver and use clean cotton patches to wipe off all carbon deposits from the hammer, disconnector, and trigger. Repeat this process until the carbon deposit is removed from the trigger.
If you chose to use lubrication after cleaning (not recommended), we suggest Hoppe's 9 Lubricating Oil (Model 30128). Only add two drops of oil between the hammer and trigger where the hammer spring is located.
All ZERO triggers are lubricated during assembly. We use Hoppe's 9 Lubricating Oil (Model 30128). This is the only time we add lubrication to the triggers. After you install your trigger into your rifle, we recommend that you not use any additional lubrication. All ZERO triggers are designed to function without lubrication (i.e., run dry). If you choose to run our trigger with lubrication, you must clean your trigger more often.
If you run your trigger dry, as recommended, you should clean your trigger every 800-1200 rounds, depending on the quality of the ammunition you run.
If you elect to lubricate your trigger, you should clean your trigger every 500-900 rounds, depending on the quality of the ammunition you run.
No, the AR-15 ZERO trigger is not designed to function with common AR-10 ammunition, which requires a heavier hammer. For use in an AR-10, please choose our AR-10 ZERO trigger.
No, the AR-15 ZERO trigger is not designed to function with common PCC ammunition.
The trigger pull weight is the amount of force that is required to release the hammer, which causes the weapon to fire. If you are an experienced or competition shooter, we recommend our 3lb trigger. If you are a less experienced shooter or intend to use this trigger in a duty or defense weapon, we recommend our 4.5lb trigger. As with any trigger, we recommend that you routinely train with your trigger of choice.
Both finishes are excellent, but the processes are very different and offer different benefits.
Black nitride is a heat treatment process that enhances corrosion resistance, improves lubricity, and leaves a fine black finish on the surface of the metal. Black nitride processing can reduce the hardness of the base metal by about 5 HRC, but it does not create any dimensional changes. Before black nitride processing, we heat treat (in house) our trigger parts to the maximum possible hardness—about 60-65 HRC for both A2 and S7 tool steel. The 5 HRC reduction caused by the black nitride processing is nominal and will not have any meaningful impact on the life of the trigger.
Nickel Teflon (comparable to NP3) is a plating of electroless nickel co-deposited with Teflon that provides remarkable lubricity and takes on the appearance of the base metal. Nickel Teflon application, does not involve heat and therefore does not reduce the HRC of the base metal, but it does create dimensional changes because it is a coating that is adhered to the base metal. Our trigger design accounts for these miniscule dimensional changes, and we also lightly sandblast the trigger parts before nickel Teflon processing to improve adhesion of the coating and to also offset its thickness.
The most impactful difference between the black nitride and nickel Teflon finishes is that nickel Teflon offers about 3x the lubricity—specifically, nickel Teflon offers a coefficient of friction of .1 (lower is better) whereas black nitride offers a coefficient of friction of .3. This results in a trigger with a smoother feel, which may make a difference for experienced and competition shooters.
We use full strength springs for all of our triggers.
It is a common misconception that the length of the spring legs across the trigger housing will affect the spring force. Our springs are full strength springs with have short legs that do not interfere with the installation of the trigger in the receiver housing.
Pavel Gubin (verified owner) –
I have purchased this 3.0 hybrid trigger for my recent build and was not disappointed with its quality. The craftsmanship is awesome, sharp and sensitive action, the reset is short allowing for quick follow-up shots. Love it!
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Question
ericcrowley515 –
Will the 3lb zero work in a 22lr ar?
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Blackout Defense –
We do not guarantee compatibility with 22LR.
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Question
Eric –
Are the Zero Trigger compatible with the A5 Buffer system?
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Blackout Defense –
Yes.
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Major Wolff (verified owner) –
I work for a gun store in Albuquerque, NM. I’ve tried many triggers and this one absolutely blows the others out of the water. The best for sure. Worth the price!
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Question
Tony –
Can I use one of your triggers in an AR pistol with a JP Silent Buffer system?
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Blackout Defense –
Our trigger is not compatible with 9mm/PCC, two-piece bolts, and PCC-style buffer systems like the Dead Foot Arms short buffer kit. If you are running a standard AR-15 setup in a pistol configuration with the JP silent buffer system there should not be any problem.
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Adiel Zapata (verified owner) –
I really like the trigger but for some reason they did away with the travel and pre travel adjustments at the bottom of the trigger, and mine has quite a bit of play. I know i could have the perfect trigger but unfortunately i cant adjust it
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Josh –
I’m curious about this also! I was stoked to purchase this trigger, now I hear these features have been removed. 🙁
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Question
jordanguilbault –
Does your 3lb trigger hit the primer as hard as your 4.5lb trigger?
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Blackout Defense –
Yes. In our design, the pull weight does not affect the hammer force. The hammer force is dictated by the hammer spring, which is same across all of our AR-15 triggers. Our AR-10 triggers, on the other hand, utilize a different hammer spring that is 17-7 stainless steel and exerts approximately 20-25% more force.
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George Donnelly –
Ar10 308 perfect trigger using radian raptor am Bi safety. I have been waiting for 4.5 trigger ordered from optics planet for 4 months now shipping keeps getting delayed from blackout defense. Guess they have issues with getting supplies to optics planet.
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Question
Mike –
What would be the best trigger on my 50 Beowulf
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negatron76 (verified owner) –
Great crispy trigger with fantastic reset. However…. It’s really stupid that Anti walk pins aren’t included with the trigger…. Since they are required. Add them to the package.
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Blackout Defense –
Our pins are not required if you are replacing a factory trigger — you can use the factory pins, and many of our customers do.
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Question
Garrett Frank –
Are these triggers compatible with radian talon safety selectors
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Blackout Defense –
Yes, our triggers are compatible with most safety selectors, including Radian. We occasionally see oversize selector drums cause interference with our trigger tail, but there is a simple solution for that issue. If you encounter interference between your third-party safety and our trigger, please call us at 480-781-0573 or email us at [email protected] for assistance.
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Question
Brandon –
Are the AR-15 zero triggers ok to use with a 7.62×39 upper? I thought I had read somewhere that they were not compatible with 7.62×39 but you were going to make a trigger that was compatible. Or I may have just dreamed that. Lol. I have a 3lb flat np3 zero trigger installed in my go-to 5.56/.223 ar, which I absolutely freaking love, paired with your 45/90 safety, I love it also. I apologize if this is a dumb question.
Thank you for making such a wonderful trigger!!!!
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U –
I have a aero m4e1 300 blackout. Would the ar15 blackout defense zero be sufficient? Or should i use ar10 and if so would that drop strait in the m4e1 aero?
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Blackout Defense –
Our AR-15 trigger works well with .300 Blackout. Please be aware that we have seen issues with Aero M4E1 having under-machined trigger wells that do not accommodate the housings of drop-in triggers. This issue does not seem to affect all of their receivers, so if it affects yours, please call us at 480-781-0573 and we can walk you through a simple solution.
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George Donnelly –
Yes I have both installed on a ar10 308 works great.
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Garrett Frank –
Are these triggers compatible with radian talon safety selectors?
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Blackout Defense –
We recommend our AR-10 trigger for 7.62×39. Our AR-10 trigger features a more powerful spring and heavier hammer to reliably fire ammunition with harder primer.
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