The Tricer-PA offers a quick and reliable solution for converting any swivel stud into a Picatinny rail (fits most stocks with traditional swivel studs). Designed fore ease of use simply slide the Tricer-PA threads over your swivel stud insert the locking pin attach the rail and tighten the nut. - This sturdy and efficient adapter ensures a seamless upgrade giving you the versatility to mount a wide range of accessories with confidence.