Midwest Industries Inc made chassis for the Ruger PC Carbine Only compatible with new Ruger PC Carbine 9mm/40 cal Take Down Models Features Easy Installation Chassis is Designed to Retain the Factory Iron Sights Constructed from 6061 Aluminum Hard Coat Anodized Two Anti-Rotation QD Sling Sockets Mil-Spec Diameter 6-Position Stock Tube Waterproof Compartment Retains Factory Easy-Change Magazine Well Weight 1lb 11oz Installed (Without customer supplied stock/grip) All Tools and Mounting Hardware Included MI Lifetime Warranty 100% Made in the USA Not compatible with AR grips that have Mfg: Midwest Industries, Inc.