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Posted: 8/27/2013 5:38:07 PM EDT
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Thinking about trying either the ALG QMS or the ACT trigger setup as i have another buld on the way and ordered one of the $35 MOE LPK from PSA this weekend and am after a trigger now.
My question is are these triggers better then the normal FCG's in the LPK's If so is the ACT better then the QMS or? |
| I don't have any experience with the QMS but have owned the ACT trigger and liked it. Definitely a step up from the standard triggers. It gets rid of the "gritty" feel and has a lot better break to it, kind of like a carrot snapping. After that I wanted a lighter trigger pull so I did JP springs and it is great. Light pull with a good break, if you are interested I have one that I replaced for a timney. Just PM me |
When I built my AR15 I ended up using a Rock River Arms Lower Parts Kit. After shooting a low round count of about 200 rounds, I used a trigger pull scale to see what the trigger pull was for the RRA-LPK trigger. It was releasing around 11 lbs. which put it just outside the 5.5-9.5 lbs trigger specification for USGI triggers. For the value I decided to try out an ALG Defense ACT Trigger which ended up being a night to day difference (I have not had a chance to check the pull weight of the ACT Trigger though) Each picture that compares two identical parts; the one on the left is from the RRA-LPK, and the one on the right is from the ACT Trigger Assembly. As for the last two pictures, the one before the last is the hammer from the RRA-LPK; and the last is from the ACT Trigger Assembly. I liked that the hammer and trigger pins for the ALG ACT Trigger are chromoly. One thing I did notice was the hammer spring from the RRA-LPK used a slightly larger diameter wire than the ACT.
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Quoted:
I don't have any experience with the QMS but have owned the ACT trigger and liked it. Definitely a step up from the standard triggers. It gets rid of the "gritty" feel and has a lot better break to it, kind of like a carrot snapping. After that I wanted a lighter trigger pull so I did JP springs and it is great. Light pull with a good break, if you are interested I have one that I replaced for a timney. Just PM me Must of not liked it too much if you replaced it..lol Any light strikes while using the JP springs? I am using magnum primers-similiar to the CCI 41's as they are a little stronger then the normal primers. Also anyone done a trigger pull on a scale to really see what the weight is? |
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Must of not liked it too much if you replaced it..lol Any light strikes while using the JP springs? I am using magnum primers-similiar to the CCI 41's as they are a little stronger then the normal primers. Also anyone done a trigger pull on a scale to really see what the weight is? Quoted:
Quoted:
I don't have any experience with the QMS but have owned the ACT trigger and liked it. Definitely a step up from the standard triggers. It gets rid of the "gritty" feel and has a lot better break to it, kind of like a carrot snapping. After that I wanted a lighter trigger pull so I did JP springs and it is great. Light pull with a good break, if you are interested I have one that I replaced for a timney. Just PM me Must of not liked it too much if you replaced it..lol Any light strikes while using the JP springs? I am using magnum primers-similiar to the CCI 41's as they are a little stronger then the normal primers. Also anyone done a trigger pull on a scale to really see what the weight is? Well I have 3 if them so.... I just replaced one to give timney a whirl. Had a few light primer strikes from the springs but swapped out the trigger spring and had no problems since. |
| The ACT trigger seems like a very nice fcg for $60 and gets rid of the gritty feel. In total honesty, I thought the factory Colt trigger with just a simple swap of the hammer with a WMD NiB hammer was a better feel and lower cost - seriously! It felt very noticably smoother. |
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I'm considering an ACT or QMS to replace my SSA (so I can put that one back in my highpower rifle)
Has the ACT locked-back-bolt safety engagement situation been fully resolved? Is the consensus any greater today that the QMS may actually be smoother and have less take up? |
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Quoted: well considering one is nickel boron coated and the other is not I would say it's worth the extra $20 Edit: Not saying nickel teflon is better or worse. Just saying after doing my research I saved my $20 and went with the QMS and I like it.
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Quoted:
I'm considering an ACT or QMS to replace my SSA (so I can put that one back in my highpower rifle) Has the ACT locked-back-bolt safety engagement situation been fully resolved? Is the consensus any greater today that the QMS may actually be smoother and have less take up? Havent heard that before..humm I also cant decide which one to go with, if the only difference is the nickel boron on the act i might just try the QMS, id really liek to hear from someone that has or had both and what they thought. Would really like to know the real world trigger pull numbers using stock and JP springs on both setups.. |
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Havent heard that before..humm I also cant decide which one to go with, if the only difference is the nickel boron on the act i might just try the QMS, id really liek to hear from someone that has or had both and what they thought. Would really like to know the real world trigger pull numbers using stock and JP springs on both setups.. Quoted:
Quoted:
I'm considering an ACT or QMS to replace my SSA (so I can put that one back in my highpower rifle) Has the ACT locked-back-bolt safety engagement situation been fully resolved? Is the consensus any greater today that the QMS may actually be smoother and have less take up? Havent heard that before..humm I also cant decide which one to go with, if the only difference is the nickel boron on the act i might just try the QMS, id really liek to hear from someone that has or had both and what they thought. Would really like to know the real world trigger pull numbers using stock and JP springs on both setups.. I had never heard of it either. I have the ACT trigger on one of my rifles and I tried to move the selector while the bolt is locked back. Sure enough it will not move at all. It's still a great trigger. |
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Yes they are better.
My experience with ALG is with their QMS. My Bushmaster's factory trigger was right around 9.5 lbs, very rough, and my only real complaint about the rifle. I bought the QMS the very next pay-day and I still am quite happy with it. My pull weight is around 6lbs and breaks very cleanly. A vast improvement over factory in my experience. Buy it and you will be happy. Also what's the issue with the ACT? |
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Very pleased with my ACT. Nice safe weight but not stupid heavy, smooth, short takeup, crisp carrot-like break as advertised. Very solid fitment in my Denny's Guns lower. ETA: I'm using Slip Extreme Weapons Grease at the engagement surfaces. It feels like a heavy-ish, grit-free, broken-in Glock trigger that's already prepped to the "wall" and made entirely of beefy metal parts so there's no give or sponginess in the system. I honestly can't think of a characteristic I'd tweak for the purpose of a dedicated CQB to medium range trigger meant for use under combat stress. The SSA characteristics, of course, strike as perfect a balance as possible between combat safety/pull-through control and a predictable and precise, lighter break for long range precision, but that's a distinct enough difference to be designated for a different mission emphasis and, likely, weapon configuration. The ACT in my 14.5" Middy is just awesome, though I realize, due to the nature of the production process and source parts, there could be some meaningful variance, but I'd think most would be excellent with a bit of wear-in of the engagement surfaces. |
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I have an ACT, and I locked the bolt back and the safety still functions. Whoever is having the issue of the safety not functioning, what it looks like is when the bcg is locked back, the hammer is pushed down ever so slightly as the bcg rides over the hammer. Which is causing the side of the trigger the disconnector is on to tilt upwards.
Quite possibly the issue could be related to tolerance stacking between the trigger and the notch cut into the safety to allow the weapon to fire; where the notch cut into the safety isn't deep enough to account for the small amount the rear of the trigger tilts up when the bcg rides over the hammer when locking the bolt back. |
| I have the ACT and really like the improvement over the stock trigger. I installed with enhanced reliability JP springs to help prevent light strike issues - Hundreds of rounds through it and no issues with light strikes. I do, however, have the bolt-back issue. ALG said that it's a known problem with some of their triggers as they don't check the measurements on ever produced unit. I swapped the trigger and still have the issue. Maybe it's my lower or selector... who knows. In the end, I can still move the selector, it just takes a lot of force. Also, with the bolt back, one of two things are going to happen - You're either going to reload and continue shooting or close the bolt. |
' ']Using a QMS trigger and hammer in a Spike's LPG kit. Mine has a firm but smooth take up with a clean break...but it is mil spec in weight. I might actually switch to a Geissele unit...this gun has too much potential.... That being said. The QMS ( and the Spike's parts ) were all top notch in fit and finish. I was VERY happy with them. |
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I guess I'll be the dissenting opinion here.
I sometimes wonder if I've just been incredibly lucky with stock triggers, as well as how many rounds most people fire, and how many dry-fire cycles and practice sessions they go through before deciding a standard trigger is simply unacceptable. Perhaps it's the fact that I tend to buy used rifles and lowers more than new ones, but I have difficulty seeing paying much extra to swap out for a cleaned up standard FCG. I think they're a great option for an OEM FCG, and if you're buying an LPK less FCG and/or have the option to upgrade to a QMS or ACT, I can better understand it, but swapping out an existing FCG that you've already paid for for one makes no sense to me. While an AR should need no functional break-in besides proper lubrication when brand new, freshly machined and coated parts can be rough from the factory - they smooth out through use and wearing together. If I'm going to pay to upgrade my trigger, it's going to be to something like an SSA, that's an actual upgrade, not to get the same trigger pull I could've gotten after a couple hundred rounds and some good dry fire sessions, several thousand cycles, granted, but dry fire practice should be a part of your training routine anyways. As another member has already mentioned - if you don't like the stock trigger pull to begin with and are unwilling to smooth it out "the old fashioned way," you're going to end up buying another upgraded FCG down the line anyways. ::shrug:: I love my Geissele triggers, and wish ALG the best of luck, too, and think that they have great potential providing FCGs as OEM, but I really just don't see paying extra to replace a new trigger with one that feels like a used trigger. Granted, I believe the OP is talking about an LPK less FCG, so an ALG might be a good option, I'm just talking in general however, as a couple of members have posted about replacing stock triggers with ALGs. ~Augee |
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Love my qms with jp springs Did you use both the trigger and hammer springs with your QMS? I ask becasue I have these springs in one lower, ACT in another and I've contemplated mating the ACT trigger with the JP springs. But the JP trigger spring seems weak and I am woried about light primer strikes. Posted Via AR15.Com Mobile |
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I have had a stock (stag) trigger, a QMS and an ACT in my gun....they are all progressively better than the one that preceded it. If you figure a stock trigger is about $30, the QMS is $15 better to get a smoother trigger, and the ACT is worth the 15-20 more than that. I started buying my LPKs without triggers so I am not buying parts i dont need.
There is nothing magical about these triggers. They are incrementally better, not a giant leap better, and, IMHO, they are a great example of "you get what you pay for." |
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