This was very helpful as I have been so confused on which A3 stock. Thanks
https://www.hkparts.net/shop/pc/MP5-...on-5p17614.htm1999 according to this article: http://www.smallarmsreview.com/displ...darticles=3114Originally Posted by RegularGuy461969
What I'd like to find out instead is when the 4 position stocks were first introduced if anybody knows?
Last edited by DDC-04; 02-10-2019 at 12:39 PM.
There have been a variety of changes to the MP5 A3 stocks over the years. To the best of my knowledge, none of them had a convex shape to the butt plate. Even the prototype MP 64 had a concave shape.
One of the earlier A3 stocks had an all metal receiver end cap. Then, HK switched to a metal end cap where the rear portion of the end cap was plastic. HK also came out with a "universal" buttstock that had slightly longer forks and the bolt hold open cutout. This was intended to be used on both the .223 guns as well as the MP5 series. On an MP5, the longer forks would not let the stock fully retract. HK produced both the earlier A3 and subsequent "F" stocks with, and without a bolt hold open cutout. Then there is the multi position F stocks. Actually never had one of those, I have too many A3s as it is. There may be more versions, but that's all that come to mind.
Last edited by SudS; 02-10-2019 at 03:03 PM.