TFB Armorer's Bench: Closer Look - Wheeler Bench BlocksThe Firearm

An example would be these bench blocks which not only support a workpiece but also have cutouts specific to firearms to make life easier.

Wheeler Engineering AR Armorer's Bench Block

TFB Armorer's Bench: Closer Look – Wheeler Armorer's Pistol Sight

TFB Armorer's Bench: Closer Look - Wheeler Bench BlocksThe Firearm

Wheeler universal bench block box opening review

Wheeler Universal Bench Block with Non-Marring

Wheeler Delta Series AR-15 Armorer's Bench Block

The Armourers Bench

At the Armorers Bench: The Not So Universal Bench Block - The Mag Life

Birchwood Casey Magnetic Armorer's Block

Birchwood Casey Magnetic Armorer's Block