Excellent quality and super fast shipping. Only giving 4 stars because of the ugly billboard on the side of the mount that needed to be removed and then refinished.

I have been working on and building HK's for decades (RDTS MFG) and this is one real nice addition I offer on our builds. I pair this with a Romeo 5 and it's an absolut co witness. Could live without the billboard on the side as I have to strip and refinish them so they don't look to tacky.

Attached this to an Aimpoint M5 and mounted it on an HK SP5. So far everything fit fine and feels sturdy. Not many rounds so cant speak on durability yet.... it does cowitness almost 100%.

The logo is engraved into the aluminum and must be painted over to hide. Would not be an issue if it were smaller and/or subdued in color.

Solid mount for HK MP5 and clones to get an absolute co-witness with Aimpoint micros. Installation is a bit tedious but not too bad. As the other reviewer also stated, I'd love to see one without the huge Battle Steel logo on the side. However, it is easy enough to place some black electrical tape over that. Has held tight through over 500 rounds so far consisting of 115gr and 147gr subsonic

I have on on a Z5RS and 5pk. They installed fairly easily and have held in place for hundreds of rounds. I have Aimpoint H2s that I decided to bevel the front edge to clear the flip cover. just looks better now. Overall, a good mount for the money. Only complain would be the billboard "BATTLE STEEL" on the side. I could go without that.