Each Stud Mount Monopod attaches to a traditional angled rifle stock via the Sling Stud found on many common rifle stocks and comes ready to attach to your rifle using a common Sling Swivel. The Leg folds up and retracts, allowing the concurrent use of your sling. No tools are required. Every model is constructed of the finest materials and built to the highest standards right here in the USA. Available in black only.The metal Quick Knob (QK) offers fine elevation adjustments and provides for a quick vertical height adjustment at the push of a button.