Unfortunately, Leapers UTP does not publish that information.
Yes. The UTG Pro Forerunner M-LOK Free Float Handguards will come with a titanium barrel nut.
Yes, it should work just fine.
Please email us at techsales@opticsplanet.com so we can further answer your question.
No, this is designed for AR-15 upper receivers.
1.33 inches.
1.33 inches.
The inner diameter is 1.33 inches. It does not have a built-in QD socket, but Leapers UTG makes an M-Lok QD attachment: https://www.opticsplanet.com/leapers-utg-pro-m-lok-standard-qd-sling-adaptor.html
It will only fit your Carbon 15 if yours has a mil-spec upper receiver.
The handguard does require use of a special barrel nut, which ships with the handguard.