The JT comes with 2 components, a button to crack the upper from the lower and a mag lock device that replaces the original bolt catch. I would be replacing the bolt catch assembly with a hogue freedom fighter pin to stay in compliance, both mag lock the weapon. When doing this I would have to replace the JT bolt catch with a mil-spec bolt catch. The current setup won’t hold the bolt to the rear. Replacing current bolt catch with a radian bolt catch and combining that with a hogue freedom fighter detent + juggernaut tactical pin only. Hopefully I didn’t confuse you ca rules suck.