Someone told me it's not good to shoot rimfire through my 5.56 upper because after the gas tube will get all mucked up with lead residue..And I should get a 22LR upper instead. True?
I'm in the process of buying a CMMG unit for my Windham HBR was curious if anyone has issues with this .
I'm in the process of buying a CMMG unit for my Windham HBR was curious if anyone has issues with this .