ERGO Verticalend Broomhandle Grip AR-15 Fits Standard Handguard
The OEM 15-Sport handguard does not have heat shields. It was a cost cutting measure. I didn't get bent out of shape about it because the handguard is the first thing I replaced.
If you opt for a Magpul MOE, you can buy rail sections to mount to the handguard.
If you plan on mounting a bunch of stuff and want simple installation, take a look at an Omega Tactical drop in quad rail.
Welcome aboard to the 15-Sport madness. Your wallet will hate you & your 15-Sport will love you. See you in the reloading thread in a few months.