One of today's most-popular rimfire pistols is the Ruger MK IV, which is used for training, plinking and competition by countless users. However, the upper-and-lower receiver setup can cause some loss in accuracy. To solve this problem, consumers can turn to Volquartsen MK IV Bedding Gels. The innovative nature behind Volquartsen MK IV Bedding Gels aims to eliminate any movement between the upper and lower receivers, allowing users to have a repeatable mounting point for these two halves. The adhesive-backed Technogel allows the product to mold to the frame of the gun and the contours of the upper receiver, allowing for perfect lockup. Each package of Volquartsen Bedding Gels includes two gels. The compound will work with all Ruger MK IV and 22/45 MK IV pistols.