Complete with port door and case deflector.
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This is a quality and traditional 9mm upper! It's just like Colt's. Also fit and finish are excellent. I like and prefer the ejection port's half door and large shell case deflector.
This upper has a really nice fit and finish. I like the way a dedicated 9mm upper looks opposed to a standard AR upper with a shell deflector and FA. Can't go wrong with with Rock River.
I wanted a traditional dedicated receiver to improve my kit gun The 9mm deflector won't fit inside a plastic vise block so I had to use wood blocks to hold it top and bottom. I like the ejection pattern now and the RRA is good looking. Fast delivery from 9mmAR
I really wanted a dedicated 9mm upper for my build; The smaller door and larger gas/shell deflector work well to keep the gas away from your face. We'll see if it withstands the test of time, but for now I'm very happy. -1 star for not working with a gasbuster handle.
Having looked at several other 9mm uppers, I felt the RRA was best suited. It mates good and is at a good price.
As usual, RRA has a quality product, the only issue I have with this product is the finishand fit with the CMMG lower I'm using on this build. The finish seems to be subpar by standards of other manufactures(and I have built to many AR's using just about everyone) and the fit to the lower leaves a little more wiggle room than I prefer. I know I usually get a better fit with matched sets, but I have attached this CMMG lower I'm using to Anderson, Yankee Hill, and even my neighbors Bushmaster and the fit is better than with this RRA. Now don't get me wrong, its acceptable by a long shot, just not where I like it. All in all, I give it a 4 of 5 stars, because it is still a quality product and a good price.