At Zenith Firearms, we don’t just build MP5s – we keep them alive. We’re proud to handle the full lifecycle of a firearm, from building them from scratch to bringing them back to life through expert refurbishment. Our master gunsmiths and experienced team are committed to restoring vintage roller-delayed blowback firearms
This recent project is something truly special and rare enough that we had to share it with you.
A Rare One-Stamp MP5
What you’re looking at is a pre ’86 full-auto MP5, and yes — it’s a one-stamp gun because the suppressor is built into the firearm itself. Back in the day, it was converted to full-auto through some “backyard engineering,” but now? It’s been fully restored to true HK spec.
WHAT WE REPLACED
To get this classic HK MP5 running smoothly again, we focused on four key areas:
- Replaced the carrier
- Swapped in a new trigger pack and housing
- Upgraded the springs for smoother cycling
- Timed and tuned the system for reliable function
Now, this rare full-auto MP5 runs like it was meant to.
As some of you already know, this gun is a legend. A true collector’s piece that deserves expert hands and attention to detail.
We truly care about each firearm at Zenith. From full restorations like this one to smaller jobs that keep your firearm in top shape, our team handles refurbishments with the same care and precision we put into our new builds. If you’ve got a roller-delayed firearm that needs work — or deserves to run like it used to — we’re ready when you are.