I have a Hogue full length handguard on a 16 in barrel and I was in need of sights. I purchased a YHM 9394 gas block/flip up front sight. I only got the 9394 just to have a front sight that will sit beyond the handguard and it also gives a longer sighting plane. It currently has the factory short length gas block that sits 3 inches from the end of the handguard tube. Would you leave it as is or convert it to a full length gas system?