Additional Service: MP5 40 To 10mm Barrel Conversion$29900 Categories: Build Your Own, hide-from-search, Work Orders Product ID: 10517 .40 Cal to 10mm barrel rechambering service ( barrel not included ) Additional Service: MP5 40 To 10mm Barrel Conversion quantity Add to cart Description Description .40 Cal to 10mm barrel rechambering service ( barrel not included ) You may also like… Out of stock WAITLIST NOW HK MP5 A3 Factory Collapsible Stock $89900 Out of stock WAITLIST NOW HK MP5 Ambidextrous/Ambi 3 position 0 1 3 Burst Only Lower Group from: $54900 Out of stock WAITLIST NOW B&T Type HK MP5 Removable Top Rail $6900 Related products Out of stock SALEWAITLIST NOW HK UMP 10mm Conversion Kit Bolt and Barrel from: $69900$49900 Out of stock WAITLIST NOW HK UMP 40Cal Conversion Kit Bolt and Barrel from: $39900 Login Register Login Password Forgot password? Remember me Login E-mail I agree that my submitted data is being collected and stored. For further details on handling user data, see our Privacy Policy Password Confirm Password Minimum 4 characters