Vise block for .22 lr upper?

[G21Shooter]

I'm gathering all the parts together to build a custom .22 lr upper with a CMMG bolt/barrel. For those who have done the same, what upper vise block did you use? Thanks

[FIREBALL_BRIAN]

Any vise block will do. Doesn't need to be 22lr specific for your AR. Not even sure a 22lr specific made.

[caluke]

On the cmmg upper you will have to remove the dust shield and shell deflector but any upper vise block will work.

[AR22]

I just bought one of the cheapo delrin ones I think it was on Ebay. They are pretty tough actually and have used it for 5.56 upper assembly too..

Are you doing a flat top upper I assume?

I could likely be persuaded to let you just borrow mine if you would promise to mail it back

But they are nice to have around if you buy one.