Volquartsen Firearms Bedding Gels for Ruger MK IV. This easy to install product eliminates any play between the frame and upper of your MK IV and ensures you get the most from your pistol. The MK IV Bedding Gels are an adhesive-backed gel custom designed for the MK IV frame. The unique properties of Technogel make it conform to any frame and upper combination and ensures perfect lockup every time you assemble your pistol. Specifications for Volquartsen Firearms Ruger MK IV Bedding Gels: Manufacturer: Volquartsen Firearms Condition: New Quantity: 2 Fabric/Material: Adhesive-backed gel Gun Model: Ruger Mark IV 22/45 Ruger Mark IV Color: Black Country of Origin: USA Gun Type: Rifle Package Contents: Volquartsen Firearms Ruger MK IV Bedding Gels What firearm models does the manufacturer say Volquartsen Firearms Ruger MK IV Bedding Gels is compatible with? The manufacturer says that Volquartsen Firearms Ruger MK IV Bedding Gels is compatible with Ruger Mark IV Ruger Mark IV 22/45Volquartsen Firearms VC4BG: Bedding Gels for Ruger MK IV