The Present Arms Gunner's Mount is an ideal platform for maintaining, assembling and disassembling magazine fed rifles and pistols. Machined of non-marring synthetic polymer. Mounts are available for a variety of magazine fed rifles and pistols. Can be bolted to the workbench or taken to the range. Mission specific cuts and pockets keep parts from going adrift. You can customize your Gunner's Mount with Magazine Posts and fixtures specific to the tasks you wish to perform. Kit Includes:Gunner's MountAR15 Magazine PostLarge SwivelAR-15 Upper Receiver BlockAR-15 Lower Receiver BlockAR-15 Receiver Alignment BlockGunner's Puck AR-15 Trigger PuckTool Bag 17 1/2" x 9 1/2" x 6 1/2" FeaturesStrategically cut for multiple functionsMachined from Non-marring Synthetic PolymerMission specific cuts and pocketsCompact and Convenient 2 Snap Accessory Compartment Tool Bag