the most accurate gel blaster? MK12 mod1 build from start to finish. 

complete walk through the build of my MK12 Mod1 SPR (ish) gel blaster and some accuracy testing.
can I hit a 53mm target from 20 meters?
don't forget that if you really like my content you can always buy me a coffee:
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motor: s.click.aliexp...
barrel nut interface: s.click.aliexpr...
handguard: s.click.aliexpr...
outer barrel: s.click.aliexpr...
carry handle: s.click.aliexpr...
rail covers: s.click.aliexpr...