PSA Custom AR 3.5 lbs. Match Grade Drop-In Trigger, Flat - 116055

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PSA Custom AR 3.5 lbs. Match Grade Single-Stage Drop-In Trigger, Flat - 116055

In stock

Special Price $ 119.99

Regular Price: $ 129.95

Quick Overview

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SKU: 116055
UPC: 810022923252
MFR#: 116055
  • Platform: AR
  • Trigger Type: Flat
  • Pull Weight: 3.5 lbs.
  • Pull Type: Single-Stage
  • Housing Material: 7075-T6 Aluminum
  • Finish: Black

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The PSA Custom Match Grade AR 3.5 lb. The trigger is designed and engineered with the highest quality standards. Built in a convenient drop-in design, even newcomers to the AR world can integrate this into their build for an easy and significant upgrade. You will feel a definitive difference over your old trigger with a lighter, crisp clean break and a short reset for more accurate shot placement. Upgrade your Mil-Spec factory AR-15 trigger now to experience the difference.


  • Anti-Walk Pin Set included
  • 3.5 lbs. Smooth, Crisp trigger pull with a short reset
  • Full Power Hammer Spring
  • Custom Flat Trigger Bow Design
  • Unique 1-piece design
  • Quick Easy installation
  • Manufactured from high quality, US certified materials


** While this trigger has been tested to work with the PSA Gen 4 9mm BCG, we unfortunately cannot confirm its compatibility with other manufacturers BCGs.


Palmetto State Armory is your one-stop shop for Modern Sporting Rifles, Parts and Accessories at the best prices around!

SKU: 116055
SKU 116055
Department AR Parts
Brand PSA Custom
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video pBkJ3JUaQHY
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 116055

Questions and Answers

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Browse 23 questions Browse 23 questions and 43 answers
Single stage or 2 stage??
Matthew on May 29, 2019
BEST ANSWER: Bruh it says single stage in the description
How light does this trigger feel. I’m used to 4 1/2-6 LBS and a little nervous about the 3 1/2 pull?
Matthew K on Jun 1, 2019
BEST ANSWER: About a pound less than what you are use to.
Will this work in an AR 9?
Billy on May 29, 2019
BEST ANSWER: Runs perfectly in my Foxtrot Mike 9mm pistol
Is this trigger flat or curved?
Benny P on Jun 20, 2019
BEST ANSWER: Its curved because the description states that it is flat.
How does it compare to a CMC trigger?
Derek M on May 29, 2019
BEST ANSWER: PSA makes very good parts. I have several cmc triggers and yes they are very close to each other. If you are looking for the best then buy Geissele triggers.
Does ANYONE read the descriptions that accompany the products? Apparently not.
David R on Jul 14, 2019
BEST ANSWER: That would be a resounding "NO" if you read the answers. Its the best part of my day.
Can you get the trigger shoe in different colors?
Freddy on Jun 14, 2019
BEST ANSWER: Or wearing different tint colored lenses in your Oakleys.
Will this trigger work in my PSA 300 blackout pistol?
Tony S on Jun 21, 2019
BEST ANSWER: The difference between a 5.56 AR and. 300 BLK, it the barrel....
How many pounds is the trigger pull?
Benny P on Jul 6, 2019
BEST ANSWER: It's only in pounds when you buy it in the UK (University of Kentucky).
It's in dollars when in the US.
Will it work with the PA10?
MikeS on May 29, 2019
Will this work with the hybrid 9mm bolt in older palmetto 9mm uppers?
M. Martinez on Jun 9, 2019
Would this type of drop in trigger work in the new gen 2 KS47? Because that would be righteous! I have CMC’s in my other palmetto guns which work great.
Big Urn on Jul 2, 2019
BEST ANSWER: The KS-47 Lower will accept most aftermarket fire control groups (Geissele, etc.). However, due to the magazine catch geometry, one-piece drop in triggers such as CMC style triggers will not function in KS-47.
Does PSA trigger address the slop movement associated with all drop-ins in the receiver? Tinmey uses tension screws or is it like CMC which has some slop movement inside the receiver
Steve on Jul 28, 2019
Is the spring on this hammer heavy enough to handle Russian steel case 7.62 ammo and primers?
Or will it result in lite strikes on the harder primers?
Building a lower for an AR47.
DaveP on Jul 21, 2019
what is the pin size ?
b k on Aug 13, 2019
BEST ANSWER: It comes with anti walk pins, mil-spec size. .154 is standard mil-spec so unless you have an odd ball lower or an older Colt then you should be good to go. 3 min install, and it's one of the best upgrades you can make.
Is this trigger full semi automatic?
Benny P on Aug 4, 2019
BEST ANSWER: Actually, "Fully" Semi-Automatic. For pleasurable Pew, Pew, Pewing......
Any chance of a curved trigger version coming out?
Steve H on Jun 28, 2019
BEST ANSWER: Well, I did not happen on 8-1-19, check back on 9-1-19...
Will this trigger work in a PSA AR-10 and in that application does it have enough force to reliably strike primers?
Jonathan T on Jul 26, 2019
BEST ANSWER: Yes and Yes.
Will this work with an AR-10 platform ??
Charles A on Jul 19, 2019
BEST ANSWER: PSA and DPMS/DPMS style since they share patterns. Others you would have to check with those mfgrs.
Does this trigger have set screws in the body to prevent wiggle?
Ken P on Jul 4, 2019
Has anyone tried this trigger in the ks-47 ??..
Adam d on Jun 25, 2019
BEST ANSWER: It probably will not work without modification due to the Fire Control pocket not being large enough to accommodate cassette style triggers.
Will this work in a PA-10?
Steven S on Jun 18, 2019
How do I know if I have a gen 4 9mm BCG?
Noah S on May 30, 2019
BEST ANSWER: The bolt will be engraved with G4 on it.


4.9 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great bang for your buck
Excellent all the way!!! Put in my 6.5 grendel 2A Armament balios lite build and works flawless. Highly recommend!
August 18, 2019
1 month ago
Awesome trigger. Highly recommend it for an upgrade.
August 18, 2019
1 month ago
Great value
Easy installation...would buy again
August 13, 2019
1 month ago
Great single stage trigger.
Nice, comparable to the CMC, but seems to actually be more consistent right out of the box.
User submitted image
Added Aug 11, 2019
August 12, 2019
1 month ago
Perfect Break/Reset. No Take-Up, Smooth,Short Reset.
I personally couldn't afford any of the "established" drop-in triggers. When I saw this, for what seemed (and proved) to be at a great price, I had to grab it. This essentially "finished" my first AR build, and this trigger is an INCREDIBLE upgrade from Mil-Spec.
This trigger has no take-up. Just a crisp, yet extremely light break, followed by a smooth, very short reset. I was honestly stunned by how amazing this trigger feels.
I can't say exactly how it stacks up with the more expensive options, but I can't really imagine much of a difference...
If you're on the fence with this one, BUY IT! 👍
August 10, 2019
2 weeks ago
Good overall trigger
I have geissele, timney, rise armament triggers, vs the PSA match grade I was very impressed for the $$$. This is a very solid trigger, worth every penny over a standard AR trigger, even with a trigger job/spring kit.
August 9, 2019
1 month ago
Perfect 3.5 lb pull every time
First time using a drop in trigger. I am very pleased with the result. Smooth, crisp break and 3.5 lbs every time.
August 5, 2019
1 month ago
I only gave it 4 stars because it the trigger was scratched up when I received it but other than that it runs flawlessly. The best bang for the buck when is comes to an upgrade for your 9mm pcc. Fast and crisp reset
I have about 300 rnds through my fm products 9mm ar pistol with no issues. Nice pull and crisp reset
I have about 300 rnds through my fm products 9mm ar pistol with no issues. Nice pull and crisp reset
August 4, 2019
1 month ago
Easy to install
It was an easy install on my DPMS Oracle. I really like the anti-walk pins that were included too. Looking forward to trying it out!
User submitted image
Added Aug 1, 2019
August 1, 2019
1 month ago
Well worth the money.
I absolutely LOVE my trigger!

Install was a breeze.

No take up at all. Though the trigger is very light, it is also very firm. The reset is minimal, but audible and tactile.

I would recommend this trigger to anyone with an AR platform rifle or pistol. If you’re looking for a drop in trigger, you found it.
User submitted image
Added Jul 30, 2019
July 30, 2019
1 month ago

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