CMMG Parts Kit Mk9 9mm Radial Delayed Blowback ASC/CPD Mags 91AFF43. This modification only applies to Mk9 platform lower receivers and does not positively or negatively affect functionality of the barrel with a MkGs Mk4 or Mk17 platform lower...
CMMG Parts Kit Mk9 9mm Radial Delayed Blowback ASC/CPD Mags 91AFF43. This modification only applies to Mk9 platform lower receivers and does not positively or negatively affect functionality of the barrel with a MkGs Mk4 or Mk17 platform lower...