Well, now - I'm quite familiar with Geissele triggers. ALG Defense is a spin-off company of Geissele, and they only make two trigger products. Both are "refined" issue, military trriggers. The ACT - ALG Combat Trigger, is the upper offering of the two. With it coming in at the street-price of around $60, it's the only real, direct competitor to a Spike's NiB Battle Trigger, in both price, and features. I received my ALG ACT today, and promptly tossed it in a lower. This is the trigger I ordered for the 7.5" 5.56 pistol build (Rob will love this one... <laughs>). Installation is straight-forward, just like any other mil-spec component trigger. What I like the most after getting it in there - SMOOTH!!! Very smooth. I've had a Spike's NiB Battle Trigger since they first offered one - somewhere around summer-2010, I've been running one. It migrated from rifle to rifle, and eventually landed in the .45 ACP AR, where it will stay. Initially, it felt good, but it got better with time - smoothed out with use. It's a damn good trigger, and it did get better, the more rounds that went through it. THE ALG ACT BLOWS IT AWAY. Right out of the package, this trigger feels immensely better than the broken-in Spike's NiB trigger. This is one damn great battle trigger, and for the price, it can't be beat. Nothing in the standard trigger, or the $60 range, is going to be better. I already have another one on order. ;D <thumbsup>