A3 Industries Versa 1913 Rifle Stock Black. Its universal 1913 folding hinge allows you to fold it to either the right or left side depending on your setup preferences. Designed with comfort and performance in mind the Versa Stock features a natural 1/4" rise complemented by a 1/4" polymer cheek restproviding a total of 1/2" ergonomic cheek elevation. Its finished with a 90 durometer Neoprene buttpad for a stable shock-absorbing shoulder fit and includes four integrated full-rotation QD sling mounts positioned for either right- or left-side use. The Versa Stock mounts to any milspec 1913 picatinny rail. If your firearm is not already equipped with a picatinny adapter select from our firearm adapter list to ensure fitment. Specifications for A3 Industries Versa 1913 Rifle Stock: Manufacturer: A3 Industries Gun Type: Rifle Color: Black Package Contents: A3 Industries Versa 1913 Rifle Stock A3 Industries VS-100: Versa 1913 Rifle Stock Black