M4 just arrived and note that it came with the enhanced charging handle and bolt release found on the gen 2. This is a 11721 LE. Pleasantly surprised, and glad I held off on ordering aftermarket options.
Speaking of aftermarket, bt-parts is running a firesale on the B&T quad rail ($125).
Can't wait to take this out to the range!
The 11711 were extremely limited with some estimates being ~150 pieces. That's not even including the special editions like the Curator sets, 1 of 1000 HK era SBE limiteds, etc.
I've seen one actually sell for $7,500, but it was during COVID when prices were elevated. They usually go for at least $5k for legit 11711 NIB unfired examples.