Stay away from the JR Carbine. The triggers are atrocious and the mfr. is (has been for a while) working on a fix. I hear good things about the Lonewolf and am trying to clear it through the misses (meaning divert funds without her knowledge) so I can grab one.
They said it uses the same trigger hammer assembly as an AR15. shouldn't be that bad. You'd figure they would put a regular milspec which ain't all that great or an aftermarket like RockRiver which would be awesome.