I picked up a KAC Mod 2 barrel and bcg recently and an looking for a handguard that will work with the Mod 2 gas block. I saw that the URX 3.1 and DD RIS II need a small modication because of the Mod 2’s gas block height. And I believe that some skinnier handguards can make contact with the gas block. I’m not against using the URX 4, just looking at options. If anyone with experience could share, that would be appreciated.

Thanks,
Austin