i have a smart parts ion, looking at milsim barrels for it at the moment, can anybody tell me whether or not this barrel will fit my threads ...
http://www.usmilitarygear.com/proddetail.php?prod=SP-TAC14-ION
not sure because there are no thread options
http://www.usmilitarygear.com/proddetail.php?prod=SP-TAC14-ION
not sure because there are no thread options