i have had similar parts for a field repair kit on b/o w/ other vendors for months. One of them *ahem! CTD* even cancelled my b/o w/o asking. I ordered this kit Monday along w/ some other parts, and it arrived Thursday of same week, exactly as ordered. That is service! Thanks guys!
Kit looks to be of high quality stuff, but mine came with 3 coil extractor springs, not the 5 coil springs pictured.
I had huge FTE problems with my new carbine. Picked these up and ran 100+ rounds of various ammo through three different mags and had zero issues. Seems to have done the trick. Perfect.
Worn out stock extractor was causing some malfunctions in my M-4. I replaced it with these and haven't had the same problem since.