I'm new to AR's. I recently assembled my first that includes a factory-built, complete CMMG 5.56 upper. My first opportunity to fire this was using an M-261 conversion for about 250 rounds of various ammo.
Upon removal of the conversion and attempting to fire Tula surplus ammo, the bolt would not cycle and I found the gas-tube would hold solvent which lead me to believe that the port was plugged. Staff at CMMG suggested that I clean the bore and shoot until the port cleared. I did that and fired about 50 rounds before the bolt would cycle the rifle properly.
Is there a better method to do this? 50 rounds hand-cycled seems excessive.
Thanks.
Upon removal of the conversion and attempting to fire Tula surplus ammo, the bolt would not cycle and I found the gas-tube would hold solvent which lead me to believe that the port was plugged. Staff at CMMG suggested that I clean the bore and shoot until the port cleared. I did that and fired about 50 rounds before the bolt would cycle the rifle properly.
Is there a better method to do this? 50 rounds hand-cycled seems excessive.
Thanks.