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Thread: Surefire mini G2

  1. #61
    Flashaholic* leukos's Avatar
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    Default Re: Surefire mini G2

    Quote Originally Posted by peite View Post



    Very clever! I like the look of this little light.
    Light is sweet and pleasing to the eyes....

  2. #62

    Default Re: Surefire mini G2

    I've got a couple of G2's and was wanting a slightly smaller light- does anyone offer this service by chance?

    thanks in advance

  3. #63
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    Default Re: Surefire mini G2

    I have access to a the equipment but I do not know how to use them so I may have to go the hand tool route. (How did I miss this thread?)

  4. #64

    Default Re: Surefire mini G2

    I might be wrong, but I think if someone were to provide this service I think it would be well received

    lots of G2's floating around

  5. #65

    Default Re: Surefire mini G2

    finally got mine done, w/o a lathe this definitely ranks right up there w/ some of my top PITA projects, but pretty satisfied w/ the outcome


  6. #66
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    Default Re: Surefire mini G2

    Quote Originally Posted by peite View Post
    yes..

    The metal sleeve insert in originally G2
    Thanks, Bill





    my another mini surefire...
    Was the camo one on ethe G2 combat lights orgionally?

  7. #67

    Default Re: Surefire mini G2

    1 Surefire G2
    1 Lumens Factory EO-4
    1 AW 18350
    1 Heck of a lot of work
    Equals a cool toy.
    Yes, I know I did not use an extender, and you can see part of "SURFIRE". I still kinda like it.
    You guys still want to buy these?

  8. #68

    Default Re: Surefire mini G2

    I offered to do more but really got very little interest. Its a fun DIY but hard to make any money doing this let alone just getting paid for my time. Yours look great too:~)
    Quote Originally Posted by Pontiaker View Post
    The tube seems to be flared on both ends, I just cut the head off to the proper length with the tube inside, then removed the long portion of tube, completed the rest of the mod then inserted the tube in from the tailcap end and trimmed it to the correct length needed by looking into the body and making it come up through like the original did.I also ground down the tube in the middle to get rid of the pattern that was on it and the half of the Surefire name that was left.Its really easy, cant wait to try it on some metal lights after my new lathe tooling gets here.
    Matt

  9. #69

    Default Re: Surefire mini G2

    I thought running an 18350 might make it more appealing. Also, mine is a half inch shorter. There is no telling what people will buy, but we know what people say they will buy.

  10. #70
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    Default Re: Surefire mini G2

    So, who makes a good drop-in LED for the C-series surefire that will run on a single cr123? Markof in that voltage range are for a E-series and you have to go to his head.

  11. #71
    Administrator Kestrel's Avatar
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    Default Re: Surefire mini G2

    Quote Originally Posted by LonghunterCO View Post
    So, who makes a good drop-in LED for the C-series surefire that will run on a single cr123? Markof in that voltage range are for a E-series and you have to go to his head.
    I know that the Malkoff M31 description is a little confusing, but it fits these hosts and it's perfect with 1xCR123. The best match with 1xRCR123 (actually 1xIMR) is the M61. BTW that is why the discontinued M30's are still popular - they run harder on a single lithium-ion rechargeable compared to the M61's.

    BTW it's cool that someone is 'carrying the torch' (so to speak ) for this cool but labor-intensive mod. Good job folks.
    In the past we have had a light which flickered, in the present we have a light which flames, and in the future there will be a light which shines over all the land and sea.
    - Winston Churchill

  12. #72

    Default Re: Surefire mini G2

    Quote Originally Posted by LonghunterCO View Post
    So, who makes a good drop-in LED for the C-series surefire that will run on a single cr123? Markof in that voltage range are for a E-series and you have to go to his head.
    I'd be interested in finding something that works- it's a little anemic as is on one cell. I purchased a drop-in sometime ago (so long I can't remember which one )- it didn't work- fitment issues

  13. #73
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    Default Re: Surefire mini G2

    Quote Originally Posted by Kestrel View Post
    I know that the Malkoff M31 description is a little confusing, but it fits these hosts and it's perfect with 1xCR123. The best match with 1xRCR123 (actually 1xIMR) is the M61. BTW that is why the discontinued M30's are still popular - they run harder on a single lithium-ion rechargeable compared to the M61's.

    BTW it's cool that someone is 'carrying the torch' (so to speak ) for this cool but labor-intensive mod. Good job folks.
    The 61's have an input voltage requirment of 3.4V regulated (with a RCR123 at 3v and below 3.4 it drops to direct drive). Are you saying run it direct drive?

  14. #74

    Default Re: Surefire mini G2

    I have found that malkoffs don't work well with G series lights. They have no springs to make contact with the sleeve.

  15. #75
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    Default Re: Surefire mini G2

    Quote Originally Posted by POLICE_STATE View Post
    1 Surefire G2
    1 Lumens Factory EO-4
    1 AW 18350
    1 Heck of a lot of work
    Equals a cool toy.
    How did you get an 18350 to fit?
    A poor man can only afford to buy the best, once.
    Six sigma- even high reliability means a system designed to produce three failures out of every million iterations...

  16. #76

    Default Re: Surefire mini G2

    Guys there are a ton of drop ins that work with these, might have to mad a spring for better contact but I run several normal P6 drop ins made for 3v-8v or so. Couple multi modes work best for me. Cool using the 18350, was short enough for me using the 650, already hard to hold onto! ;~) I got tired of fatter 6P head size in my pocket and went with other brands single 18650 smaller head stuff.

  17. #77

    Default Re: Surefire mini G2

    looked up which one (drop-in) I had it was a XPG R5, it didn't work unfortunately

    if someone has that does work well (and actually has a shortened G2 they've tired w/ it) I'm all ears

  18. #78
    Administrator Kestrel's Avatar
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    Default Re: Surefire mini G2

    Quote Originally Posted by LonghunterCO View Post
    The 61's have an input voltage requirment of 3.4V regulated (with a RCR123 at 3v and below 3.4 it drops to direct drive). Are you saying run it direct drive?
    OK, now you're confusing me. Your prior post stated "CR123" so I assumed that you were talking about non-rechargeable CR123's. Now in your post above you state "RCR123" (which are 3.7v LiIon rechargeables) but also state "3v", which only matches the open-circuit voltage of a non-rechargeable CR123. I am very familiar with both chemistries as well as the Malkoff dropin line and I'd like to answer your questions, but it is unclear as to what you are looking for.

    The Malkoff M61 line is designed to be the best match for LiIon rechargeables or multiple CR123 primaries, while the M31 line is designed to be the best match for a single CR123 lithium primary or 2xAA NiMH's. I would be happy to supply more detailed information once I know what your desired cell chemistry for this light.

    Best regards,
    Last edited by Kestrel; 02-27-2012 at 01:09 PM.
    In the past we have had a light which flickered, in the present we have a light which flames, and in the future there will be a light which shines over all the land and sea.
    - Winston Churchill

  19. #79

    Default Re: Surefire mini G2

    As long as its the proper voltage for the battery you are using, you just need to make sure the outer spring on your drop, if it has one, is narrow enough at the bottom that it makes contact with the metal liner of the light. Are you trying to use it in a cut down G2?

  20. #80
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    Default Re: Surefire mini G2

    Quote Originally Posted by Kestrel View Post
    OK, now you're confusing me. Your prior post stated "CR123" so I assumed that you were talking about non-rechargeable CR123's. Now in your post above you state "RCR123" (which are 3.7v LiIon rechargeables) but also state "3v", which only matches the open-circuit voltage of a non-rechargeable CR123. I am very familiar with both chemistries as well as the Malkoff dropin line and I'd like to answer your questions, but it is unclear as to what you are looking for.

    The Malkoff M61 line is designed to be the best match for LiIon rechargeables or multiple CR123 primaries, while the M31 line is designed to be the best match for a single CR123 lithium primary or 2xAA NiMH's. I would be happy to supply more detailed information once I know what your desired cell chemistry for this light.

    Best regards,
    Sorry I was not trying to be confusing- In my post I was talking about Cr123 primaries. As that is what I was interested in and what I stock. So that was my first choice for a single cell build.
    Your reply mentioned rechargable 123's so I was wondering if there was something about their output vs. CR 123 primeries that allowed for longer run time. Not being familure with them I looked them up and they seemed to be the same voltage.

  21. #81
    Administrator Kestrel's Avatar
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    Default Re: Surefire mini G2

    OK, no worries. The M31 runs like a champ from 1xCR123, the only issue is heat in the nitrolon head/bezel. Very much recommend against a continuous run with that setup - the M31L might be a better option depending on what you're looking for. 45 minutes total runtime w/1xCR123 with the full-power version. Again, I know that the Malkoff description of the M31 is a bit confusing, it's a great match for 3P's but I guess SF hasn't been selling many of those lately, lol.
    In the past we have had a light which flickered, in the present we have a light which flames, and in the future there will be a light which shines over all the land and sea.
    - Winston Churchill

  22. #82

    Default Re: Surefire mini G2

    Quote Originally Posted by POLICE_STATE View Post
    I have found that malkoffs don't work well with G series lights. They have no springs to make contact with the sleeve.
    is there a workaround for that? another drop-in that does work w/ the G series?

  23. #83
    Administrator Kestrel's Avatar
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    Default Re: Surefire mini G2

    My unmodified Malkoffs have always worked perfectly with my unmodified G-series lights. My wife's G2/M60LL has never faltered for an instant over the past three years she's had it. BTW there are a few troubleshooting threads for this topic, please feel free to use the CPF-Google search function for that. The usual suspect is the conductive metal sleeve being too far 'down' into the nitrolon body as viewed from the head end.
    In the past we have had a light which flickered, in the present we have a light which flames, and in the future there will be a light which shines over all the land and sea.
    - Winston Churchill

  24. #84
    Flashaholic* sween1911's Avatar
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    Default Re: Surefire mini G2

    Reviving this great thread! I have my trusty old G2 and am planning this very mod. Will report back with tales of my butchery.
    Dean Venture: "I'll get the flashlights!"
    Hank Venture: "And I'll get the astronaut Ice Cream!"

  25. #85
    Administrator Kestrel's Avatar
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    Default Re: Surefire mini G2

    Fantastic, looking forward to seeing it.
    In the past we have had a light which flickered, in the present we have a light which flames, and in the future there will be a light which shines over all the land and sea.
    - Winston Churchill

  26. #86
    Flashaholic* sween1911's Avatar
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    Default Re: Surefire mini G2

    No turning back now...

    WOW, no wonder these bad boys are so tough. That wall is way thicker than I imagined in cross section.

    As long as have this giant old Milwaukee 1/2" drill, I always have a lathe. Trimming the head piece down to fit inside the body piece I cut. Secured to a dowel with electrical tape and the dowel chucked in this older monster. (eye protection is NOT optional)


    Cutting the slot in the body part to receive the head...


    Testing connectivity with a P60 on one CR123 before final glueing...


    Epoxied together with my old bug-out-gear module to test fit...


    I could have been more precise with cutting the slot out of the body. I did a good first pass and had it ready to go together but it was just 1mm short, so I cut a piece off of the body and quickly made the slot a little deeper, and it came out a little eccentric, so it's a tiny bit off center. I made it as straight as I could when gluing the pieces together with epoxy, but it's still a tiny bit off. Were I to do this again, I'd do it so the glue point was down toward the middle of the handle instead of right behind the head. Having the metal tube running under the cut would help to keep everything straighter.

    All in all, it's a fun light. I'll mess with it and an RCR123 to get some decent output and maybe find a cheaper low voltage module to go with it.

    (I actually do have a black AN14 extender, but didn't want to destroy it quite yet. I have another G2 and it's handy to have.)
    Last edited by sween1911; 08-17-2015 at 07:03 AM.
    Dean Venture: "I'll get the flashlights!"
    Hank Venture: "And I'll get the astronaut Ice Cream!"

  27. #87
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    Default Re: Surefire mini G2

    First and foremost, nice work. In 2009 this was cool, however, now you are on the leading edge of a revolution in a in 3P/M31 style of light becoming very popular. I always loved my 3P but never carried it because it was a model with a short production span, and other lights at the time replaced it.

    The 3P size is the quickly becoming the new craze of the drop-in lumens and styling scene, lots of cool things coming for M31 style drop-in hosts, and your modification looks very cool. Is this work just special for yourself, or will you be offering a modding service. Tons of G2's floating around out there.

    I have the original 3P which is a great pocket size of light. However, at the time (late 90's), Surefire could not get any useable lumens for what their company was about, so I never used mine, and Surefire abandoned it. However with the M30-31 Malkoff's, and several other drop-in makers who have arrived since that time, expect this size of light to be the next cool thing. You can already see it coming, in fact it is here, now, and it looks like, it is going to, be fun!

    Nice job and the resurrection of this thread could not have come at a better time.

    Malkoff and Vallient Concepts, please ramp up and put back into production the titanium VME head! I wish I had bought more than one when they were selling. I am planning all, kinds of 3P/M31 size of lights, and that will include titanium!

    Best of luck,

    RL
    Last edited by RedLed; 08-14-2015 at 10:17 AM.
    Check my Web Site: www.Redwayphoto.com

  28. #88
    Flashaholic* sween1911's Avatar
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    Default Re: Surefire mini G2

    Quote Originally Posted by RedLed View Post
    The 3P size is the quickly becoming the new craze, lots of cool things coming for M31 style drop-ins, and your modification looks very cool. Is this work just special for yourself, or will you be offering a modding service. Tons of G2's floating around out there.

    I have the original 3P which is a great pocket size of light light. However, at the time (late 90's), Surefire could not get any useable lumens for what their company was about, so I never used mine. However with the M30-31 Malkoff's, and several other drop-in makers, expect this to, be the next cool thing. You can already see it coming, and it looks like,it is going to,be fun!

    Nice job and the resurrection of this thread could not have come at a better time.
    I will not be offering a modding service, but thanks for the props! This was just me messing around. My first major Surefire mod was an old... Geez I forget the part number... the 3volt weaponlight lamp module with the R30 lamp... LM30? that I connected to a cut-down A19 extender resulting in a 3P clone. Loved that light.
    Last edited by sween1911; 08-14-2015 at 10:12 AM.
    Dean Venture: "I'll get the flashlights!"
    Hank Venture: "And I'll get the astronaut Ice Cream!"

  29. #89
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    Default Re: Surefire mini G2

    Nicely done! I've made a few of these, one lives on my Wife's might stand with a Malkoff module. Lumensfactory will roll you a "R30" replacement module if you like primary cell 3v incan goodness. Think MN01 beam shape and brightness...
    Looking for a Crosshairs Surefire C2. Please PM if you can help me out. Thanks!

  30. #90
    Flashaholic* sween1911's Avatar
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    Default Re: Surefire mini G2

    Kestrel just hooked me up with a nice little 3-mode low-voltage drop-in for this baby. Works great. Got it in my backpack right now.
    Dean Venture: "I'll get the flashlights!"
    Hank Venture: "And I'll get the astronaut Ice Cream!"

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