Have you ever heard of bending an Upper receiver?

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Just stumbled across this and thought it was pretty comparable to a clamshell vise. And reasonably priced! A little more versatile than a clamshell vise too. What do ya'll think? Is it worth it?

http://www.plastixrevolution.net/product...vise-block

I don't know. Just looking at it--- During barrel procedures it appears to place the force against the takedown lugs (normally bad) and makes up for it by also bearing some of the load against the top rail. That might be okay if they work together equally. If the fit isn't good it could be bad though. Hard to say (IMO) without actually giving it a hands on trial.

Certainly cheap enough. It might work well, or it might break off a receiver lug if you really reef on it. Someone will have to be a guinea pig (not me).