FAB Defense M4 Po R10/22 Collapsible- Optics Ready Ruger 10/22 Rifle Stock - The R10/22 M4 Precision Stock Conversion Kit presents a superior upgrade for enhancing the Ruger 10/22. Availavle in the Pro Version (full length top 1913 MIL-STD picatinny) This unique stock offers the perfect combination of a classic bench-rest design with a modern tactical versatility and buttstock features. Ultra-rugged design, slightly angled to counter recoil Improved performance in reaction, on-target time, and muzzle control when firing Pistol grip an include a storage compartment Made from durable, lightweight fiberglass-reinforced polymer Four integrated Quick Detach (QD) rear sling swivel connectors M4 Shock Absorbing, with all the benefits of the M4, incorporates a highly effective recoil reduction system using a premium silicon chrome alloy spring No gunsmith required