Paper weight - Aero Precision AR-15 BAR Barrel Nut and Shims

I've had this barrel nut for over 2 years sitting on one of my arms. Overall the weight distribution is great. It bounces the rifle perfectly. The metals they use to make this are very soft. You have to Slim it with 3 shims clock it 3 times. Over all with this happeneding the ended Struck off making it a no go to have it long lasting. Id Highly recommend picking something else. Over all Experience Expensive & time consuming for a Heavy Rifle. Makes a Good amount of middle weight.. End of Story...

Its a Rail lol