AR 15 trigger

[highlander]

Need a little help here and I hope I'm in the right forum. Yesterday I purchased an AR 15 lower from FS ( Yes I know I over paid). Upon getting it home I found the trigger to be horrid,lots of take up and fair amount of force need to get the hammer to fall. this is an Armalite lower BTW. Now I have the parts from a DPMS lower that I had a CMC trigger installed,my question is can I replace the Armalite trigger group with the trigger group from the DPMS?
Or am I SOL and have to live with it? If anyone was at FS yesterday I was the guy with the 2 shelties.

 

[Skald]

Should be GTG for just swapping them out.

 

[vellnueve]

Isn't FS charging ~150 per stripped lower? I imagine their prices are competitive with other retail stores.

You can replace the trigger like any other. In fact, I think that if you just order the trigger and hammer springs from Midway (DPMS) you could see a vast improvement.

 

[RKG]

You can always replace the trigger later, but before you do you might want just to complete the build and break it in. "New" AR triggers often polish themselves during break in.

 

[highlander]

You can always replace the trigger later, but before you do you might want just to complete the build and break it in. "New" AR triggers often polish themselves during break in.

My fear/concern is that the bolt thrust is not going to be enough to cock the hammer. When I manually push the hammer to cock it's like the engagement surfaces are cut too deep,seems to take an undue amount of force for the hammer to lock in place. I'm using a Model 1 upper in 22 lr with this lower and as I stated earlier my fear is the thrust from a 22 lr may be insufficient to to recock the rifle.

 

[matt]

You can always replace the trigger later, but before you do you might want just to complete the build and break it in. "New" AR triggers often polish themselves during break in.

+1. It will get better with use. AR triggers are crap out of the box IMO.

 

[JGG]

trigger

You can cut one of the legs off the hammer spring. This will reduce the force needed to reset. This is one of the tricks used in a do it yourself trigger job posted on the web. Before cutting it off, put some polishing compound down into the trigger engagement areas. Sit in front of the tv with the lower. Lock the hammer back and release it onto some leather or other suitable block, so as not to damage the lower casting. Keep repeating and applying compound for an hour or so. This will polish the surfaces and take out some of the creep.
There is another trick, but it involves interfering with sear engagement.

 

[Dan S]

Don't cut the hammer spring if you're using it for a .22LR conversion or upper.

 

[vellnueve]

Just pick up a pair of DPMS springs (hammer/trigger) and that'll probably do it. I use that combo on one of my ARs that had a really, really heavy trigger due to excessively strong springs in the LPK.