Nitride ToolCraft BCG for $69.95, I ordered one yesterday (bought several times from rtb), ToolCraft is all I order now, this will be my 4th. Lots of other good deals as well: RRA NM and Varmint 2-stage triggers $79.99, etc.
https://www.righttobear.com/toolcraft-black-nitride-MPI-M16-158-p/tooauto-016-158.htm
OpticsPlanet has all ODIN Works on sale plus a myriad of deals on many optics and parts. How about $41.30 for a SS tune-able gas block
https://www.opticsplanet.com/odin-works-low-profile-tunable-gas-block.html
PrimaryArms has a huge sale, picked up a Magpul ACS stock and BevBlock among other things, both at the best prices I could find.
If I were looking for complete uppers or kits PSA would have been my go-to this weekend but I’ve got an older AR getting a facelift right now. $400+ down the rabbit hole yesterday for extension, spring, H2 buffer, stock, bolt, charging handle, rail, tools, and a few small parts.
Speaking of, if you like the Maritime bolt catch, Strike Industries makes an similar extended catch (in addition to their “enhanced”) that’s on sale at Righttobear for $9.99, I picked up 2.
https://www.righttobear.com/strike-industries-extended-bolt-catch-p/si-ar-xbc.htm Helped some friends stuck on a build, his wife’s pistol, and he was having her function check. She was trying to push the (standard sized) button to no avail, he had her palm strike it, then assisted her with a second, and got a shriek and death stare. The larger surface area should make things easier. Now I’m wishing I’d bought a half dozen.