CA Compliance Parts And Modifications Add-on UMP$9900 SKU: CACOMPPAKUMP-1 Category: hide-from-search Product ID: 7608 One 10rnd mag block, grip flap and installation CA Compliance Parts And Modifications Add-on UMP quantity Add to cart Description Additional information Description One 10rnd mag block, grip flap and installation Additional information Weight 17 oz Dimensions 12 × 6 × 2 in 922r Qualifying Part YES – Foreign Manufacturer HK Related products Out of stock SALEWAITLIST NOW HK UMP 10mm Conversion Kit Bolt and Barrel from: $69900$49900 SALE HK MP5K RS Custom Build Complete 9mm From: $3,49900 Original price was: $3,49900.$3,19900Current price is: $3,19900. Out of stock WAITLIST NOW HK UMP 40Cal Conversion Kit Bolt and Barrel from: $44900