I have the Apex FSS-T kit in my fullsize M&P. I had Apex install it, and when I got it back I was shocked at how light the trigger felt. I have a thumb safety on my gun, so I don't worry about carrying it, and now that I've practiced with it, the trigger feels completely normal. I think the pull is around 3.5lbs.
I, too, am toying around with the idea of upgrading my stock trigger. I would like a trigger in the 4-5 lb. range that has a smooth, consistent break. I was thinking about just going DCAEK, but it's my understanding that the trigger break is even further back (thus more pre-travel) than the stock trigger. Is this right? Anyone with the DCAEK that can comment if this is a "problem" with shooting for speed/accuracy?
Also, is the FSS something that should even be considered for a "duty" type weapon (read: for carry, not for competition)?
I'm really kicking myself in the butt for not shooting Grants M&P at the Vickers class in November!
(Grant, are you using the FSS or DCAEK in your carry gun?)
Last edited by Ironman8; 03-19-12 at 10:10.
Just the sear alone with a broken in striker spring will yield a 4 to 4.5 pound pull.
The newer guns with the larger sear springs can be closer to five pounds but a stock gun with a bit of wear, ie compressions on those springs should still come in under five pounds.
Randy has done an incredible job R&Ding a proper spring weight for his competition striker weight spring as we've had almost ZERO issues with light strikes running these, certainly less than a Glock with a lighter than Factory striker spring. Still, having said this, for the sake of maximum reliability, i think running factory striker springs is the way to go.
Because of the way the M&P is designed you only feel the striker spring weight during the actual "wall" or "break" fast of the trigger press. Pre travel is unaffected unlike on a Glock.
IF this were a perfect world i would actually do the following:
DCAEK heavy trigger return spring
AEK Competition striker spring
AEK Competition sear spring
Hard Sear
USB
This combo will yield about a four pound pull with significant resistance in the pre travel to facilitate proper prepping of the trigger. The closer my striker fired pistols feel to a DOA revolver with a short, striker style reset, the happier i am.
Glass rod breaks are for 1911's and weirdos.
In a NON perfect world i would test my above setup with all of the above minus the striker spring. Provided we experienced no sear flutter that setup would be in my eyes, safe and adequate for carry purposes right at around 4+ pounds.
Light triggers are a detriment to control in my eyes so think about this one long and hard.
Clarification:
The issues that we have had with the light weight striker springs ONLY occurs with Tula/Wolf 9mm ammunition as this off the shelf brand uses small rifle primers that are exceedingly hard to touch off. All brass cased, commercial ammo has been good to go with the light weight striker springs.
Last edited by Magsz; 03-19-12 at 10:33.
I dropped in just the standard APEX sear when they first came out and put a light polish on the striker engagement face. It made a substantial difference. The trigger smoothed out and the weight dropped to about 4 lbs. Later I put the RAM in, this did make the reset better but when shooting fast I can't really feel the reset on any gun I've shot.
Last edited by C4IGrant; 03-20-12 at 16:18.
Curious about your perfect world scenario. I currently have:
competition spring kit
Hard Sear
USB
RAM
in my MP 40 no manual safety. It is pretty light 3.5 lbs but crisp break and with a positive reset. I started thinking about putting the oem trigger reset spring back in to carry it. I wasnt sure how this would affect my weight? Id like to be in the 5 lb realm. Would this serve my purpose or should I just buy the duty spring kit
Last edited by usnavydoc; 03-21-12 at 16:19. Reason: New info
Lots of agencies have a 5 lbs minimum trigger pull weight--this works well on a duty/carry pistol.
When I carried 1911's, all had an 5-5.5 lbs trigger. My 9mm Glocks use an OEM "-" connecter and stock trigger spring give a 5-5.5 lbs pull measured mid-trigger. My M&P's with Apex Duty Kits give a 5-5.5 lbs trigger pull.
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