Works well for 22 bolt conversion in standard ar upper - CMMG, Inc Ejection Port Cover Kit w/ Gas Deflector

I like the kit a lot. It works well to cover up the hole in the rear of the ejection port when using a 22 bilt conversion kit.

However, i gave it 4 stars because the brass deflector part is plastic and the brass will eat away at it after tens of thousands of rounds.

My other gripe is that the plastic peice is a bit loose when it sits in place. I used liquid gasket and sealed it in place to fix the issue.

All in all. If you have an old upper that has a 22 bolt conversion dedicated to it. Then this makes the upper appear a lot nicer. That being said, i dont think it adds any practical or mechanical advantages, it just looks nicer.