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Joined: Apr 2005
Posts: 3,034
Campfire Tracker
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OP
Campfire Tracker
Joined: Apr 2005
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My new Sig M400 Tread is a delightful piece of machinery, but it bottoms out my RCBS trigger gauge at 72 oz (4.5 lbs) and even then isn't close to tripping the trigger.
I get it that a self-defense rifle needs to be one that requires a deliberate pull to set it off, but I'd like to try some target shooting at extended ranges and possibly some hunting with it - and a 6-7 lb trigger pull is just too much.
1. Is there a simple way (read: non-gunsmith) to reduce the pull to somewhere around 3.5-4 lbs, like on my other hunting rifles?
2. Is 3.5 lbs too light for its role as a home protection firearm?
I've been looking at trigger spring kits for around $15 and drop-in replacement triggers for $150-300. Is there anything anyone can recommend somewhere near the lower half of that spread?
As you might have guessed from my post, I've never tinkered with an AR-15 before, so any proposed solutions need to be SIMPLE.
Thanks for any responses, and MERRY CHRISTMAS!
All that is necessary for the triumph of evil is that good men do nothing -- Edmund Burke
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Joined: Oct 2014
Posts: 4,755
Campfire Tracker
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Campfire Tracker
Joined: Oct 2014
Posts: 4,755 |
There are lots of good AR trigger options, especially if you're willing to spend $150 or more. Sounds like you want to spend a bit less though, so I'd recommend one of these: - Rise Armament drop-in triggers, pick one on sale right now from several different places (Primary Arms, Dvor, Palmetto State Armory, etc). The basic one seems to be going for ~$88, and a better model for ~$105. These are a single stage trigger. - Larue MBT. They were something like $87, not sure what they're going for right now, but they have a good reputation. These are a 2 stage trigger. Edit - they are $80, here: https://www.larue.com/products/larue-tactical-mbt-2s-trigger/Both of those are good triggers. The Larue has a big following in certain circles, and is a quality trigger. Personally I prefer a single stage and am happy with the Rise triggers for a lower priced single stage. Hope that helps. Also, you'll get more knowledgeable responses in the black rifle section of this forum.
Last edited by Yondering; 12/06/19.
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Joined: Jul 2005
Posts: 5,685
Campfire Tracker
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Campfire Tracker
Joined: Jul 2005
Posts: 5,685 |
Timney Calvin Elite is on the top end of your budget, but it seems to be a very nice trigger with a clean 1.5 pound break.
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Joined: Jun 2011
Posts: 3,750
Campfire Tracker
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Campfire Tracker
Joined: Jun 2011
Posts: 3,750 |
As mentioned, a good bang for the buck trigger. Link
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Joined: Jan 2005
Posts: 22,884
Campfire Ranger
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Campfire Ranger
Joined: Jan 2005
Posts: 22,884 |
The Larue is available as a single-stage trigger now also. That is what I would recommend.
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Joined: Jun 2015
Posts: 1,928
Campfire Regular
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Campfire Regular
Joined: Jun 2015
Posts: 1,928 |
I lightened a friend's AR trigger by about half with a simple spring change. Brownells has what you need. Very simple.
Society of Intolerant Old Men. Rifle Slut Division
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Joined: Jan 2001
Posts: 10,947
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
Posts: 10,947 |
Simply replace it! Quick, easy, and “almost” financially painless! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Oct 2017
Posts: 93
Campfire Greenhorn
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Campfire Greenhorn
Joined: Oct 2017
Posts: 93 |
Never tried changing springs, but some friends have, and they say there's no free (or cheap) lunch. They got a lighter trigger pull, but they also started getting mechanical issues such as 20% misfires. NOT what you want in a defense weapon.
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Joined: Jul 2004
Posts: 6,666
Campfire Tracker
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Campfire Tracker
Joined: Jul 2004
Posts: 6,666 |
I changed springs on one, slightly lighter trigger and no malfunctions. Put a Rock River Varmint on another, much better option. Next time I'll start with a LaRue.
'Four legs good, two legs baaaad." ---------------------------------------------- "Jimmy, some of it's magic, Some of it's tragic, But I had a good life all the way." (Jimmy Buffett)
SotG
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Joined: Jan 2001
Posts: 10,947
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
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If merely changing springs works for you.....I’m very happy for you. But, for for my rifle it would have been a waste of time. The trigger pull was best described as pulling a rusty chain across the edge of a table. You might have gotten it somewhat lighter.....but, the roughness would remain! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Aug 2010
Posts: 48,049
Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,049 |
Never tried changing springs, but some friends have, and they say there's no free (or cheap) lunch. They got a lighter trigger pull, but they also started getting mechanical issues such as 20% misfires. NOT what you want in a defense weapon. Yeah, why bother with that crap when you can buy a Larue mbt2s or RRA varmint match for around $80.00? I'd just pay the money and get the better trigger... They are easy to replace.
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Dec 2004
Posts: 14,488
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2004
Posts: 14,488 |
I like the LaRue MBT-2s very much. One of the best $80 a guy can spend to upgrade, IMO. I never tried Rise, but that sale price on a single-stage is pretty enticing. If I had any need, I'd gamble a little cash on that one myself.
Maybe someone can help me out: I'm not following how a lighter trigger spring can cause misfires. Hammer spring, sure thing. But how can a lighter trigger spring cause misfires???
Don't be the darkness.
America will perish while those who should be standing guard are satisfying their lusts.
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Joined: Jun 2007
Posts: 3,621
Campfire Tracker
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Campfire Tracker
Joined: Jun 2007
Posts: 3,621 |
I put a Larue MBT in my Sig M400. Made a world of difference. Excellent trigger with very consistent break.
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Joined: Aug 2002
Posts: 14,465
Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2002
Posts: 14,465 |
[quoteI like the LaRue MBT-2s very much. One of the best $80 a guy can spend to upgrade, IMO. ][/quote]
YES! best deal out there.
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Joined: Feb 2010
Posts: 15,666
Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 15,666 |
I have a Sig 400 Hunter (think that’s the designation) and its trigger was HEAVY and rough. Made it really hard to hold good groups. Swapped out to a Geisselle (sp) and, oh man, what a difference. You certainly don’t have to spend that much money but just about anything will beat the stock trigger and a replacement is easy to install.
NRA Life,Endowment,Patron or Benefactor since '72.
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Joined: Sep 2009
Posts: 2,997
Campfire Regular
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Campfire Regular
Joined: Sep 2009
Posts: 2,997 |
I would install a new trigger. There are many options and most are easy to install, just a matter of a couple of pins. I like Geiselle triggers, but they are more expensive. For self defense you want something that is 100% reliable and not too light (probably at least 3 lbs).
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Joined: Jul 2001
Posts: 60,117
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,117 |
Another vote for replacing rather than reworking. I like the Timney, though it's more expensive than some others.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Joined: Feb 2007
Posts: 2,070
Campfire Regular
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Campfire Regular
Joined: Feb 2007
Posts: 2,070 |
I run Timney and Elfmans in my ARs. I like single stages over a two stage. But when it comes to AR triggers there are many options and opinions.
Writing from the gateway to the great BluMtns in southeastern Washington.
Just remember, "You are the trailer park and I am the tornado". Beth Dutton, Yellowstone.
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Joined: Feb 2016
Posts: 17,820
Campfire Ranger
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Campfire Ranger
Joined: Feb 2016
Posts: 17,820 |
JP spring kit and set screw above grip screw (to take some creep out). Not the greatest, but an improvement, good enough to make my 16" into a decent yote killer.
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Joined: Oct 2010
Posts: 1,263
Campfire Regular
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Campfire Regular
Joined: Oct 2010
Posts: 1,263 |
The Larue is available as a single-stage trigger now also. That is what I would recommend. +1
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