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Smyth Busters: Do You Have To Follow Torque Specs?

You're assembling your latest AR-15 or installing that new scope, when you encounter the recommended torque settings for the AR's barrel nut or the scope rings. But you've read posts on Internet forums and social media by folks who say, "Nah, torque specs are just suggestions. You don't have to follow 'em!" Do you? What happens if you don't? Brownells Gun Techs™ Steve and Caleb point out that torque specs exist for a reason. Some torque specs, like those of the mil-spec AR-15 barrel nut, give you a lot of leeway, 30 ft-lbs. to 85 ft-lbs. Many gun parts don't come with torque specs, and experienced gunsmiths like our Smyth Busters develop a feel for how much torque is enough. Torque specs ARE very helpful to folks who are new to working on guns, in a military armory where multiple people work on a whole bunch of guns, or where you want a high degree repeatability, like on a target rifle. Consistent torque is a big help in achieving the right amount of "grab" with scope rings - enough so the optic doesn't shift under recoil but not so much you crimp the scope tube. Don't assume that, for example, all 30mm scope rings require the same amount of torque. Read the manufacturer's instructions for each product. (Steve shares a handy tip about using LOCTITE® thread locker on scope ring screws.) So the myth is BUSTED: torque specs often ARE important. You can't go wrong by following them!