Surefire M4 Devastator bored 18..x.

altermann

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Joined
Jan 21, 2015
Messages
773
Location
NJ / EU
Today i finished the M4 modernisation, the body was bored for 18.. accu family compatible.

The boring was not through the whole body, i left 1 mm of original diameter from the head side for prevent to loosing contact from minus lamp to minus body. It is possible to load Accumulators only from the tail cap side.




Now the flashlight can use MN21 MN20 lamps from M6 with two 18650
and it can use the original Surefire M4 Devastator lamp - MN61 with 3 18350 combined with metal spacer instead the 4-th accu.


MN20 lamp 250 lumen inside





Thanks)
 
Last edited:

night.hoodie

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Aug 6, 2014
Messages
717
Location
Lost City of Atlanta
Arise old thread! Thanks for posting. I have just discovered I want an M4. The prices have come down ($90-$150 used, $150-$200 nib) and Tad Customs supports it with 2 sockets, as well as others before Tad, possibly still available. Seems like all the fun is in G4. Boring makes sense, and there's really high capacity (1100-1200mAh) 18350 hybrid cells available now. I wonder if there's lamps for 4x18350?
 
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