ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,625, issued on April 8, was assigned to Leapers Inc. (Livonia, Mich.).
"Rotatable buttstock" was invented by Tai-lai Ding (Northville, Mich.), Tat Shing Yu (Plymouth, Mich.) and Horatiu Popa (Napoca, Romania).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotatable buttstock mount can include a tube, a boss, a support frame including a rearward ring and a guide pin in a guide slot such that the support frame can rotate relative to the tube. When a buttstock is secured to the mount, the buttstock can rotate with the frame and thereby change the axial angle of the buttstock relative to the weapon to which the mount is secured, thereby providing a use...