Spartan Precision Equipment Classic Gunsmith Adapter & Dirt Plug Black. These are designed to be bonded into wooden and synthetic rifle stocks by professional gunsmiths and competent individuals. Specifications for Spartan Precision Equipment Classic Gunsmith Adapter & Dirt Plug: Manufacturer: Spartan Precision Equipment Color: Black Weight: 0.3 oz Features of Spartan Precision Equipment Classic Gunsmith Adapter & Dirt Plug CNC machined from 7075-T7351 aluminium billet with a hard-anodised black finish Enables use of our Javelin Bipod in fixed target and traversable hunting modes Package Contents: Spartan Precision Equipment Classic Gunsmith Adapter & Dirt Plug Spartan Precision Equipment SP02-04-R: Classic Gunsmith Adapter & Dirt Plug Black