This is some of the fit notes provided by Leapers for these handguards:
"Designed to Fit with Standard Gas Tube and Barrel Diameter Not Exceeding 1", Not Compatible with Piston System, Re-designed or Over-sized Upper Receivers"
Yes, the UTG Pro AR15 M-LOK 13in Super Slim Free Float Handguard will be compatible with the Aero Low-Profile Adjustable Gas Block. The Aero gas block is compatible with handguards that have an internal diameter of 1.3", since this handguard has an internal diameter of 1.32" it will work.
Yes, the UTG Pro AR15 M-LOK 13in Super Slim Free Float Handguard would require you to remove the delta ring, handguard cap, and front sight post. Once you replace the front sight post with a low-profile gas block you will be able to install this handguard.
The UTG Pro AR15 M-LOK 13in Super Slim Free Float Handguard Features M-LOK slots on 7 sides of the handguard which will assist in dissipating heat if not being used. However, just like any handguard, it will heat up if an excessive amount of ammunition is fired through the rifle it is attached to.
The UTG Pro AR15 M-LOK 13in Super Slim Free Float Handguard will work with MIl-Spec dimension AR15's that use a low profile gas block. So it will work with either of those AR15's if they have low profile gas blocks.
Yes, the Trinity Force micro .750 gas block should work fine with the UTG Pro AR15 M-LOK 13in Super Slim Free Float Handguard.
The UTG Pro AR15 M-LOK 13in Super Slim Free Float Handguard has a internal diameter of 1.32". So it will not work with the SLR Sentry 7 .750 Adjustable Gas Block.
The manufacturer doesn't state what the UTG Pro AR15 M-LOK 13in Super Slim Free Float Handguard barrel nut is made of. I recommend contacting the manufacturer in regards to that information.
Yes, it does.
The blacks will be very close, but they will not be perfect matches as they are finished differently and are manufactured by different companies.