Trigger test - Which trigger is "best" for you?

[septic-tank13]

@Shihan

Septic have John or Jason mail you a AR10 srping for the AR15 Timney you were having trouble with on the hard primers. I just installed one im mine and will be testing it out tomotrrow. What type of 5.56 were you having problems with? Im taking some Privy out and im trying to see what else I can dig up without upsetting my ammo balances.

i don’t remember which it was. it was either prvi or israeli stuff…

i’m interested in what you find with the spring change. i’ll do the same and we can compare notes. it that makes a significant difference it would be worth it. it’ll change trigger pull a bit, due to higher drag across other sear break surface, but very damn little.

if you have a trigger pull gage, you might use it before and after to measure the delta weight change. i’ll do the same.

great suggestion!

[Shihan]

@phoric

What did they charge you for the extra hammer spring?

Nothing because im a nice guy and a snappy dresser plus a Timney dealer. They would probably give you the same discount if you were having troubles.

[Abraxas]

Interesting thread:D

[Shihan]

@septic-tank13

i don’t remember which it was. it was either prvi or israeli stuff…

i’m interested in what you find with the spring change. i’ll do the same and we can compare notes. it that makes a significant difference it would be worth it. it’ll change trigger pull a bit, due to higher drag across other sear break surface, but very damn little.

if you have a trigger pull gage, you might use it before and after to measure the delta weight change. i’ll do the same.

great suggestion!

Well it was a good day at the range with no light strikes and being able to laugh at the range commandos decked out in ACU that dont know how to sight in a rifle but are SF Qualified:D
I shot with no problems with the AR10 spring
Privy M193
Win Q3131
BVAC(thw bastard off spring of HSM) 75gr 5.56

If anyone has a few misc rounds of off ball 5.56 that I can buy off of you let me know to test.

Thanks

[Severian]

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[Shihan]

@phoric

Will their AR10 trigger fit correctly in a standard AR15 lower? Or is it different dimensions?

They will fit and function fine.

[Severian]

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[Shihan]

@phoric

I installed my Timney AR15 3 pound trigger last night. Install took only a couple of minutes. The fit and function is excellent in my (stripped) Bushmaster lower. The trigger pull is crisp and consistent, and pretty light. I’m still considering going to a heavier trigger pull, with either the 4# or 4 1/2 lbs AR15 model, or the AR10 model, but I want to shoot this first to see how it is. This rifle isn’t quite ready to go shoot yet, but within the next few weeks I plan on testing the trigger reliability using various types of ammo that I would typically encounter, including Prvi Partisan, American Eagle, etc. I also have a few thousand rounds of Georgia Arms “canned heat” left over from several years ago, both in SS109 and M193.

Not to beat a dead horse, but did anyone else here besides septic-tank13 and Shihan have issues with Prvi or other surplus / military ammo, using the stock Timney trigger? I’m just interested in how common this problem is… Timney seems to partially admit that the trigger was not designed to fire military ammo, but they also say it “should” work. Either way I’ll probably end up with putting in the AR10 hammer spring for peace of mind, but I first want to do some more testing and perhaps add to the sample of evidence…

My stock Timney fired Privy without issue.

[Shihan]

After some more range time yesterday I encountered no problems with Radway Green witht he new AR10 spring on my Timney AR15 trigger.

So after using
Radway Green
Privy M193
Win Q3131
BVAC(thw bastard off spring of HSM) 75gr 5.56

Im pretty confident that the AR10 soring fixed any issues. BTW the AR10 spring is 20% stronger than the ar15 Timney spring. I would still like to run some Lake City through it if I can find a spare box? As I dont want to open sealed cans and some South African.

[Severian]

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[Shihan]

@phoric

I went to the range today and sighted in my CompM4, and put a few different types of ammo through my new setup with the Timney trigger (stock hammer springs). I shot about 200 rounds, all 55gr FMJ. Some Georgia Arms canned heat, some Federal/American Eagle, but mostly Prvi Partisan.

I did experience a single dud or light primer strike with the Prvi Partisan. I couldn’t tell which it was, the primer strike looked normal to me, so perhaps it was a dud… not quite sure.

Anyway this was my first time shooting this new upper, so it’s time to clean up and I’ll put some more rounds through it soon. Other than the dud everything went well.

Did you save the round? If so try it in another gun or try it again with your Timney to find out if it was the round or trigger spring.

[Severian]

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[septic-tank13]

sounds promising. i’m testing an Timney AR10 trigger currently. it wouldn’t quite drop in the 10 year old AR10 i have, so a slight mod was necessary… more information to follow.

[Shihan]

John gave me one of their AR10 triggers to test. Now i just gotta get the AR10:o

[5spdfrk]

Great info! Very well laid out imo.

[BushmasterFanBoy]

I’m looking at upgrading my trigger from the stock one, I’m thinking I want a single stage, but I’m unsure if any of the ones on the market are reliable enough for a hard use gun. My criteria are as follows: lighter trigger pull (improvement over stock, mine feels >10lb.) goes bang EVERY time (no light primer strikes, etc) good for extended use with no malfunctions (no doubling after a few thousand rounds) and somewhat resistant to accidental/negligent discharge (by this I mean it is heavy enough to keep from firing unintended by snagging on gear/brush).

Any single stage triggers you’d suggest for a hard use gun with the previous criteria met?

Or are the two stage triggers more suited to my needs?

[septic-tank13]

@BushmasterFanBoy

I’m looking at upgrading my trigger from the stock one, I’m thinking I want a single stage, but I’m unsure if any of the ones on the market are reliable enough for a hard use gun. My criteria are as follows: lighter trigger pull (improvement over stock, mine feels >10lb.) goes bang EVERY time (no light primer strikes, etc) good for extended use with no malfunctions (no doubling after a few thousand rounds) and somewhat resistant to accidental/negligent discharge (by this I mean it is heavy enough to keep from firing unintended by snagging on gear/brush).

Any single stage triggers you’d suggest for a hard use gun with the previous criteria met?

Or are the two stage triggers more suited to my needs?

two stage is fine. if so, a no BS unit that is uber reliable is the armalite. in single stage a no BS reliable unit for defending my life would either be the alexander arms unit or the accuracy speaks unit. both were simple and operated with full power springs.

just an opinion. there are many that are suitable, but those would be my personal choices.

[BushmasterFanBoy]

@septic-tank13

two stage is fine. if so, a no BS unit that is uber reliable is the armalite. in single stage a no BS reliable unit for defending my life would either be the alexander arms unit or the accuracy speaks unit. both were simple and operated with full power springs.

just an opinion. there are many that are suitable, but those would be my personal choices.

Septic-tank, I just bought the Alexander Arms unit. Can you tell me a bit more about its reliability, possible issues (on a hard use weapon), and what exactly the allen screws adjust in the trigger assembly?

ETA: What about their shipping time? Did the unit get sent out quickly? I need mine very soon. (Literally yesterday)

[septic-tank13]

@BushmasterFanBoy

Septic-tank, I just bought the Alexander Arms unit. Can you tell me a bit more about its reliability, possible issues (on a hard use weapon), and what exactly the allen screws adjust in the trigger assembly?

ETA: What about their shipping time? Did the unit get sent out quickly? I need mine very soon. (Literally yesterday)

firstly, if you’re in a jam and need it right away, i’d be calling them to make sure they know that is the case. being no different than many companies, they source material and services (like hardening) from other vendors and many times they are at the mercy or work ethic of someone else. there is no excuse for late delivery, but frankly we live with it in this industry on a daily basis. i’ve had back orders from AA, but i’ve always been in close contact with them and as far as organizations go, they usually are able to give me a “no BS” assessment of when said backorders will ship.

that said, give em’ a ring to make sure they know you’re in a pinch. communication never hurt a scenario like you describe.

the screws are very simple. take a close look and visualize where they are located. they are on either side of the trigger pin (IE fulcrum) thus they dictate how far you can pull the trigger rearward and how far it will return forward. (think of teeter totter on the playground as the trigger spine and the length of the kids legs as the screws - the longer the legs/screws the less movement is available for teetering/trigger travel…) basically we are talking about engagement and overtravel. reset is another term, but we’re talking more in the instance about single stage vs. two stage.

AA’s trigger is built barely over center, so you can glide along without feeling much camming at all and essentially leave in a great deal of creep, essentially turning it into a two stage trigger, or simply tighten the screw and adjust the creep out, making it a single stage trigger. the other screw is for overtravel - more or less…

the trigger i used in the test was .050" over center and the standard build Bill sells today is .005" IIRC… you should feel nearly no camming whatsoever. the reliability is top notch IMO. Bill builds his triggers to the most extreme of conditions and to the caters to the warfighter first and foremost. reliability and function are his staples when he designs a piece. buy and operate with confidence. all parts can fail, but this piece isn’t one i’d worry about routinely…

he’s built a true high performance trigger and those folks who’ve been around triggers a bit can tell the difference. kudos on your purchase.

if i can help in any way, let me know.

-ST13

[mopar]

How does the LMT 2 stage come up?