The Strike Industries Billet Ultimate Dust Cover replaces the standard ejection port cover on AR-15, M4 and M16 uppers chambered in .223/5.56. It is machined from solid billet aluminum with a built-in double seal to keep debris out, and it installs and removes quickly. This one is finished in blue.
- Brand: Strike Industries
- Part number: ARBUDC223BLU / SI-AR-BUDC-223-BLU
- Fits: AR-15 / M4 / M16 (.223/5.56)
- Material: billet aluminum
- Color: blue
- Includes: dust cover and a pack of 4 rubber pads
- Not compatible: Aero Precision M4E1 uppers, LanTac E-BCG
