The short review is I really like the Highball sight for various reasons: it's the right height and size, visible with my installed heat shield(s), crafted better than the oem bead, and it afforded me the sighting solution I wanted.
The longer review explanation is that years ago my vision began noticeably changing at a time when I began shooting far more frequently. I decided to switch my shooting orientation from right to left and needed to train my brain/left eye to pick up my sight picture faster with my then-new M500. Consequently, I employed a sighting solution that didn't include using the bead...but that I experiment with and add a couple of accessories on the receiver and barrel. So, because I wasn't using it, I wasn't even aware there was an issue with the oem bead height being low. It wasn't until recently, after buying a M88 to mod and plink with, that I began seeing numerous comments about the front bead and shot trajectory...and shooters opining about shooting high with shorter barrels. That led me to seeing the Highball. I purchased one and immediately noticed the quality of the bead was better than the oem. Visually, the oem bead was not seated flush on my M88 and looked like it was cross-threaded...but it wasn't. The installation of the Highball was easy and it seated in flat against the barrel. Basically, it just looked much better. More importantly, though, the height and bigger size was the solution I needed...and it was clear the sight plane was now accurate. So I bought another one for my M500 and with this one simple solution I was able to remove the sighting accessories I had no longer needed...and it all looks so much cleaner. Also, the Highball is properly visible above the heatshields on my M500 and M88 20" barrels. The oem bead wasn't even visible unless I raised the barrel...which no doubt would have caused high shots.
So after all that wordy explanation about my particular situation, ya, I'm glad I bought the Highball Bead Sight for both shotguns.
