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AR15.COM
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7/31/2015 7:03:55 PM EDT
Can someone tell me the hole size on a factory MP5 BFA? I am making a BFA for a film shoot and need to know a starting point for the hole. Thanks!
7/31/2015 10:14:49 PM EDT
[#1]
The MP5 blank firing adapter I have has a hole corresponding to a #44 drill bit.  A # 43 won't fit.  I'd think that would be a decent place to start as it has the same attachment as the flash hider.  Since that doesn't seal, I'd think you'd end up with a larger hole since I'd imagine you are going inside the muzzle.  Good luck with the project.

Scott
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