Unless you can find the AR recoil version used it looks like all that's available to order on the Lage website is the IRM version.
I have no regrets with IRM, but I only shoot it in the standard 10.5" 5.56 config.
I use Magpul type 2 rail covers. Haven't melted them yet. I usually run it until I can smell them getting hot and that's a sign to let it cool off. Most of the time it's on a bipod or tripod though. I also have a Lage K grip but haven't tried it yet.
TW-25 is white grease right? I would clean that all off and use an oil instead. The only issues I have with mine is that it won't feed from a beta mag. Everything else runs like a top.
I've stopped collecting brass out of my MAX-11/15. I was collecting all brass, but now it likes to tear brass in half nearly every range session. Brass was failing on it's second or third reload. I get 2 or 3 every 500ish rounds or so. Gas is set to one click above where it won't run reliably.
I have a D60 that runs great in a 11/15 so far. Total PITA to load for sure though. Most people that I let load it themselves give up way before it gets anywhere close to 60 rounds.
https://www.vihtavuori.com/reloading-data/handgun-reloading/?cartridge=101
No experience with N320 in 380, but I tend to load in the mid to high end of VV N320 data for 9mm. I've used Titegroup in the same loads and things are by far way cleaner running N320, especially when suppressed. I won't...