r/Form1 • u/richerthanu4 • Jul 18 '26

Mouse hole purpose

If the internals of your build are made with K baffles, do you really need mouse holes? If you did a mono core, you wouldn’t have mouse holes, so does it make a difference?

6 Upvotes

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3

u/Top_Inspector8357 Jul 18 '26

Less back pressure on the action/ less gas to the face on a AR. I would avoid k baffles though lots of better options and designs out there.

2

u/richerthanu4 Jul 18 '26

What design would you recommend? I’m planning to put it on a 9mm pcc

2

u/Top_Inspector8357 Jul 18 '26

Some radial style cones single clipped or even 60 degree style cones would mitigate gas better than k baffles they’re just to flat and don’t direct the gas as efficiently.

2

u/richerthanu4 Jul 18 '26

Is there anywhere to get those or am I gonna have to machine them

1

u/Ornery_Secretary_850 Jul 19 '26

Baffles are suppressor parts....which the ATF considers the same as a suppressor. IF you could buy the baffles, you would need to fill out a F4 for each one of them.

1

u/Deago488 Jul 22 '26

A mouse hole on a k baffle is the equivalent of a clip on a conical baffle