Almost perfect - Aero Precision AR 308 Ejection Port Cover Kit

Bought this for my Aero Precision M5 based rifle I am building. The finish is as expected and the door fit perfectly. The only problem I had and the sole reason for 4 stars instead of 5 is that I had to file down the mounting pin a bit because it was about 1/32" to long. This little bit just did not let me get the handguard tight to the upper. But I would still buy again and highly recommend.