Loaded with innovative features, the Tac-Hammer RM4 Takedown Rifle Stock adds portability and convenience to our popular RM4 stock. This lightweight, compact stock was developed to fit perfectly with the factory Ruger Takedown 10/22 rifle. Compatible with factory tapered barrels only. If compatibility with over-sized bull barrels is desired check out the Tac-Hammer TK22 Takedown Stock. Patented Stowaway accessory rail is concealed in the forend. When reversed, the rail is available for flashlight, bi-pod or other accessories. Get custom length-of-pull for proper fit and improved performance with the adjustable butt-stock, equipped with ambidextrous storage compartments for two spare Ruger rotary magazines. (Magazines not included.) The Tac-Hammer RM4 Takedown Rifle Stock fits easily inside Ruger's factory bag, or in Copper Basin's low-profile 10/22 Takedown Backpack. The pistol grip is designed to fit the spring-loaded Tac-Hammer Monopod for increased stability (sold separately).