FEATURES-Designed for use with the Tipton Best Gun Vise-Can also be mounted directly to bench top with included fasteners-Supports AR-15 for cleaning & light gunsmithing operations-Innovative bolt service station locks bolt in for servicing extractor pin-Center section rotates 180° (in 7° increments) & locks into place at desired location-Locks into place using magazine lock on your receiver-Built-in hammer stop prevents damage to lower receiver-Solvent-resistant polymer provides durability & is non-marring to surfaces-Mag well arm is removable for clamping in a bench vise when additional rigidity is required