Review of CMMG Immortal Magazines
Albert @ The Rasch Outdoor Chronicles has reviewed the CMMG 28 round Immortal magazine for the AR-15:
CMMG claims that no other magazine offers greater performance under extreme conditions. It has their new stainless steel anti-tilt follower which features superb stability, minimal drag and unmatched durability.

The new CMMG braided wire spring gives 40% additional pressure over standard USGI springs. A nano-ceramic plated braided wire spring protects for over 400+ hours against salt sea spray.
Read the full review here.

hmmm, I see CMMG are being clever and selling the followers and springs as retrofits.
$6 gets you both items. I can certainly live with that!
bah
buzzwords, and siduse of them at that.
That wire is NOT braided. It’s twisted.
Nanoseramic coating, eh? While ‘s robably a ceramic coating along the lines of header ceramic, it’s doubtful it involves anything on the nanometer level.
In all, probably just a bunch of buzz to “justify” $50 a mag.
Mags are disposable items. Duh?