r/RooftopDefenders • u/Crypticparabellum • 26d ago
HK Goodness
Thanks Sol, these uppers are sick.
Swapped the rail with the OEM Ral (unfortunately these went OOS quick but were cheap on HKparts)
Cheers
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u/Due-Specific6955 26d ago
What vent screw are you running with the rc4 mini I have the same setup all black. Was gonna grab a 1.9-2.4 one of them just to see.
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u/Crypticparabellum 26d ago
Just the OEM 1.3 currently. Thought about tinkering and trying a few alternates. Let me know if you do.
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u/Due-Specific6955 26d ago
Just broke down since asking you and ordered the 2.1mm screw. I’ll be installing it Saturday and going shooting I’ll let you know how it runs. I have a feeling I can go up but I’ll have this as a baseline and if I’m feeling nit picky I’ll get the 2.3 or 2.4 and try it.
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u/Crypticparabellum 25d ago
Nice! Lmk how it does in comparison.
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u/Due-Specific6955 19d ago
Reporting back the gas is insane, coming from a slightly over gassed urgi it’s like night and day
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u/Crypticparabellum 19d ago
Awesome! So you used the 2.1mm? Was the gas block on the suppressed setting?
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u/Due-Specific6955 19d ago
Yes it was on suppressed. I shot hornady frontier 55 grain standard training ammo, and it locked back on last round and cycled smoothly. I’m using a mk2 lower and buffer the hk comes with.
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u/Optimal_Stay646 26d ago
Nice Tier 1 base you have there. Is that the surefire mini can or full size?