I'm HK fan. But bought 20s instead. F*** HK, "They hate you". Most of their parts are ridiculous expensive. I went with the Scar 20s because their trigger are way better than HK. I think 20s look way better than HK.
Nothing wrong with it. It's "clone" stock. Will works with MP5, SP5, clone MP5. I don't know who made these but bought it couple years ago on hkparts.net. SOLD