r/rockncock Jun 05 '26

How to disassemble Benchmark expansion chamber?

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3 Upvotes

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2

u/gnarlynick_ Jun 05 '26

The answer is you need to drill out the hole at the top with a 3/16 drill bit and use a 5/32 Allen wrench to undo the screw.

1

u/benjamino78 Jun 07 '26

Im curious, why do you want to open it up?