ATI Outdoors Stock, Fits Ruger 10/22, Glass Filled Nylon, Thumbhole Stock, Black RUG3000 The Advanced Technology Int. Fiberforce Ruger 10/22 Thumbhole Rifle Stock fits most Ruger 10/22 but will not accommodate rifles equipped with bull barrels. Its Dragunov Military design is lightweight and has a ventilated forearm and handguard. The DuPont(R) Extreme Temperature Glass Reinforced Polymer makes this stock scratch resistant and weatherproof. The sling swivel studs will accept any standard sling swivel. Made in the USA.