Originally Posted by mountainman13
I know enough to build or swap parts out of an AR. Don't own one yet and probably never will due to Obama. I'd love some more info on these. The words clamp on and gas block feel like they shouldn't be in the same sentence.
LOL I'm building one now just for this ^^^ very reason!
There are two types, clamp on and set screws on the bottom. I've read that the clamp on version is better because the clamp force is extremely large and spread over a larger surface between the block and barrel where as the set screw type tend to come loose.