ASG Metal Accessory Mount Base MP5/G3 Series

Well made from good material

The installation could be better the item was made to fit better , along with some written instructions

Looks and feels well made.

Better instructions for installation. Include this with the MP5 and other models for which it is intended.

It appeared that after several failed attempts to install on the MP5 that perhaps this was not the proper adapter. Turns out it fits only one way in one place with no room for error.

Solid build and machined very well

Not sure, it took a lot of effort to mount it on the umarex mp5 but I think that is more an issue with the gun then the mount.

Took a while to figure out how to mount it properly on the umarex mp5. It seemed to fit best by having the side rail on the same side as the ejection port. The blowback did not seize up when I tightened it in this configuration. The other way around was to finicky and I felt the screw holding it together was too loose to keep the blow back working. As soon as you even moderately tighten, not even finger tight, the blowback would seize. However, I was able to mount it flush with quite a bit of effort, secure it firmly and keep the blow back working properly with the side rail over the ejection port.

very durable metal construction, a little touch to install but well worth the price!

nothing

Perfect fit for the H&K MP5. Solid metal construction. Well made and mounts solidly to gun.

Nothing.

Even after numerous shootings it remains solidly fixed to the gun. No re-tightening necessary.