A presentation of the handguards for AKS-74U called B-11 and B-11U from Zenitco, showing you how to install them... "Review of handguards for AKS-74U: tasks, differences, how to install. Let's compare the B-11 and B-11U and weigh them. Next, we will remove the standard handguard from the AKS-74U and install the B-11U. Let's complement the assembly with the RL-1 stop."