How is this accomplished? I see no drift pins or set screws on this. There is a roll pin holding gas tube. Any suggestions? Need to change a gas tube.
It sounds to me like you are setting yourself up for an Adams Arms piston conversion kit. Once you get that front sight gas block off of there, you can use the all-inclusive gas block, piston and carrier to to have yourself a nice piston AR.How is this accomplished? I see no drift pins or set screws on this. There is a roll pin holding gas tube. Any suggestions? Need to change a gas tube.
Yeah, but he'll need to remove it if he wants to replace his inferior DI system with a vastly superior piston system like the kind that you are always saying you want to have to repell hoards of zombie coyotes.You do not need to remove the front sight housing to remove the gas tube just knock out the roll pin and the gas tube will pull out of the upper receiver through the inside until its pulled out of the front sight housing then pull it out from the front of the receiver. . Reverse to install a new one.
I will try that, existing tube is bent so it requires changing. Not piston at this time, besides it would still require removing the current gas block front sight.OP said he needs to change the gas tube. Like I mentioned, knock out the gas tube roll pin, slide the gas tube back to free it from the block, and carefully remove the tube. Reverse the process for assembly.