Parts needed for oldies but goodies

I would first just replace the breech seal and see how it shoots before worrying about disassembly.

The Beeman 850 is a Diana Model 6M with the GISS System anti double spring recoil cancellation system. Rather complicated first time around tearing through it.

Try contacting Umarex who knows?

Difference is yours gotta twist the rectangular barrel in order to release the barrel cocking latch every time you want to cock it.

https://www.airgunnation.com/topic/diana-6g-saturday-rebuild/













https://youtu.be/9o-cp9g80mg

https://youtu.be/1Wc14obbNWs









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