What Upper Receiver Vise Block for AR-308?

[lshel]

I'm wanting to collect some tools for possible work on my M&P10, maybe free float handguard. What type upper receiver vise block - aluminum or nylon? I've read reviews on nylon vise block using takedown pins twisting and sometimes breaking when tighting barrel nut. Some have recommended the aluminum vise block takedown pin type being sturdier. New to AR Self projects. Which type do you use on 308 AR's?

Edited February 14, 2014 by lshel

[lshel]

I ordered the aluminum vise block that uses takedown pin holes. Hope it works!

[Lumber_Jack]

[quote name="lshel" post="1111422" timestamp="1392485336"]I ordered the aluminum vise block that uses takedown pin holes. Hope it works![/quote] That will work. I was going to suggest the polymer one that uses take down pins.