Magpul PMAG Impact/Dust Cover - 3 pack (MAG216-BLK)
Supplemental Impact/Dust Covers for the 5.56x45 PMAG 30 AR/M4 GEN M2 MOE, PMAG 20, and EMAG, designed to minimize debris intrusion and protect against potential cartridge damage during storage and transit
NOTE: These will also fit all older pre-GEN M2 variants of AR15/M16 PMAG (with Black or Foliage Followers)
This cover will likewise fit the PMAG GEN M3 but, being it is of a slightly different design, will not adequately seal that magazine against debris intrusion