They are great rifles. A lot of the parts are Mil-Spec. They are as Mil-Spec as any most other Tier 1 AR's on the market. No AR without a tax stamp is 100% Mil-Spec. The receivers, fire controls, etc, are just a little different (mainly the lower milled differently etc) than what the military uses.
" The strongest reason for the people to retain the right to
keep and bear arms is, as a last resort, to protect
themselves against tyranny in Government...." - Thomas Jefferson