Hell.....I didn't even know it existed. I ran across it doing some research.I thought it was developed after mp5. Not much info on it but somebody here prob built one from parts kit.
I know.....same here. Me need pictures....less words.Lol. I had forgotten about the 54a1 until I read it. You did say54. I guess as my wife says it had too many words and not enough pictures for me.
Bingo!!!!!!View attachment 7329
How the HK MP5 Defined a Generation of Submachine Guns
The world of counterterrorism is often cloaked in shadows and rarely visible to the average person. That changed in earlywww.tactical-life.com
And then there's smarty britches.
Def, Def, Definitely four toothpicks.Look, it's thirteen minutes to Judge Wapner, and the HK50 is four toothpicks cooler than any roller lock ever imagined.