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Benelli M4 -- Receiver Extension Disassembly Tool


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For those of you who whom have attempted to disassemble the receiver extension on your Benelli M4, you've probably encountered the oddly shaped face of the stock attachment screw.


I finally found a tool that fits this stock attachment screw perfectly in my Brownells MAGNA-TIP® PROFESSIONAL SUPER SET.




You can buy the bit by itself if needed here:



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That tip will work in a pinch, but the first time removing the screw, it is very tight, so a heat gun and a well-fitted screwdriver tip is ideal. The magna-tip edge is beveled backwards for the beveled slots in the screw. A square driver allows complete contact with the screw slot engagement.

Here's another plan to consider....





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The spade style works nicely when you have attended to details of fitting.




My preferred tool for the job is this one I fabricated; it fits the square slots and the circular base fits flush / square on the retaining nut to absolutely prevent any slippage that might mar the screw slots.



Edited by benelliwerkes
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