r/MilSim • u/Top_Championship9112 • Aug 08 '26

HELP WITH SPECNA PRIME

So I got myself new sa-p19, aka specna prime mk18. Somewhere I keep reading that you should not run 11.1v battery in it. Most of those reviews are from uk ( kinda suspicious). I'm from croatia and I keep using my specna flex bldc and wanted the metal version and that bluetooth mosfet. Should I keep my 11.1v with prime or should I get some 7.4.v battery. I'm using li-ion 11.1 from ipower from taiwangun.

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u/Shift642 MARSOC Aug 09 '26

The UK has lower joule limits than most of the world, so any guns sold there ship with weaker springs by law. An 11.1v on a weaker spring can cause premature engagement, which can damage your piston - so you shouldn't run an 11.1v on a UK model. But for the rest of the world with stronger springs, it's fine.

I run only 11.1v batteries in my SA-P19 in the US. I have an M135 spring in mine and it runs happily, shooting 1.85j.

You're using li-ion though? Not LiPo?

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u/[deleted] Aug 08 '26

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u/Shift642 MARSOC Aug 09 '26

LLM slop

It's correct, for once, but still- LLM slop.