Reviews by Houstonboy
I'll take 2
Written on May 20, 2023
Review for
Fostech Echo Sport AR-15 Binary Trigger
I did it, i blew it apart during install, but no problem putting back together.i took 5mm stainless rod, and cut it to the length of the 3 center components together it was right at .200 of an inch, put the 3 center components together with springs, and put the pin through them, and instslled them into the lower trigger assembly already in the rifle pushed it through with backup punch, with another pin the same length as the one they send, but without the point, thenpushed original rifle pin through, with backup punch, installed selector, and hammer, worked great, they need tp send an extra pin, but not pointed, i also hsd to do a mod on sear that catches the hammer on the upper part of the trigger, i believe it's madr of silicon bronze, vdry hard, it would drop the hammer on the trigger release shot and wouldn'fire, there's a radius cut into the lower part of that catch whith a aluminum block on both sides of the lower, put in a vice and peened the catch with a hammer several times, which made it mushroom out just enough to hold the hammer when the bolt slammed the next round into battety. i only needed about .020 more. Works great, lotta fun. You can build anything, don't bother trying to drill this material with any HSS drillbit it won't even scratch that material
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