rotarymike
Well-Known Fanatic
A little background:
When the hoarding insanity ramped up prices it left me without LPKs for two receivers I was building. I was able to piece together most of the LPKs from Palmetto's parts wall, but after a horrible trigger from one previous kit I had intended to look into alternatives so I skipped the fire control group.
Looking into the options, spending $230 for a Giesselle, no matter how nice, just wasn't happening. Timney and JARD and the others were high-dollar as well. While browsing Midway online, it recommended the ALG trigger groups, and after some research I bought a QMS (Quality Mil-Spec) set for $45 to see what was what.
You'll note this thread has no pictures - that is because the parts are all standard mil-spec parts and look identical to the DPMS, PSA, and Oly parts you can buy. However, the engagement surfaces have all been precision ground and polished.
Now - for a point of reference, my original AR got lucky with it's Olympic LPK and had an excellent trigger. No gritty feel, nice crisp letoff, about 6.5# using a fish scale/trigger pull gauge. Still a bit of creep, but overall a nice trigger for HD and offhand shooting. Besides, I'm shooting 6.8SPC and it's useless after 300 yards anyway
The QMS trigger takes everything bad I disliked about the horrible PSA trigger, and dispenses with it. It takes the things I liked about the Oly trigger and makes them better. Pull is about 6#, but very crisp, and no discernible creep. I think the pins are slightly oversized to remove some of the slop. Also, the face of the hammer is polished so the BCG just glides right over.
First time I'll actually get to shoot the thing is probably Schutzenfest, so if you want to see the difference between this one and the Oly (which is now in my slidefire lower) just come up and ask.
When the hoarding insanity ramped up prices it left me without LPKs for two receivers I was building. I was able to piece together most of the LPKs from Palmetto's parts wall, but after a horrible trigger from one previous kit I had intended to look into alternatives so I skipped the fire control group.
Looking into the options, spending $230 for a Giesselle, no matter how nice, just wasn't happening. Timney and JARD and the others were high-dollar as well. While browsing Midway online, it recommended the ALG trigger groups, and after some research I bought a QMS (Quality Mil-Spec) set for $45 to see what was what.
You'll note this thread has no pictures - that is because the parts are all standard mil-spec parts and look identical to the DPMS, PSA, and Oly parts you can buy. However, the engagement surfaces have all been precision ground and polished.
Now - for a point of reference, my original AR got lucky with it's Olympic LPK and had an excellent trigger. No gritty feel, nice crisp letoff, about 6.5# using a fish scale/trigger pull gauge. Still a bit of creep, but overall a nice trigger for HD and offhand shooting. Besides, I'm shooting 6.8SPC and it's useless after 300 yards anyway
The QMS trigger takes everything bad I disliked about the horrible PSA trigger, and dispenses with it. It takes the things I liked about the Oly trigger and makes them better. Pull is about 6#, but very crisp, and no discernible creep. I think the pins are slightly oversized to remove some of the slop. Also, the face of the hammer is polished so the BCG just glides right over.
First time I'll actually get to shoot the thing is probably Schutzenfest, so if you want to see the difference between this one and the Oly (which is now in my slidefire lower) just come up and ask.
