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Thread: mk 12

  1. #21
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    I wish I had one of those particular x24's marked "navspec"...seen a few on the civi market before.

    Just to add a few changes to spec for me personally.....
    Add a UBR, instead of the sopmod/a2
    Add a Noveske 18" SS SPR instead of the Douglas
    Swap the Ops Inc. for a AAC SPR/M4 can and mount.

    I am not saying the above listed changes are vast improvements or really even improvements, however they are things that I personally would rather have on my MK 12 type gun.

  2. #22
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    Quote Originally Posted by firemedic2000 View Post
    I found this post very helpful. This is one of my the first post on this forum, but I am a lifer on another I won't mention. I heard a lot good things about this forum though and though I'd visit. I just picked this up today at a great price. Here are pics and specs. It will be going on a colt lower with a Chip McCormick match trigger. I have to pick out a good stock now


    CMT Upper
    CMT BCG / CH
    Douglas 18" Air Gauged SPR Barrel SS 1/7 5.56mm
    Larue 13.2 rail
    VLTOR Gasblock
    Troy BUIS
    AAC 51t brake (torqued to spec)
    Assorted panels

    I think it will work out pretty good for what I need it for
    That is a really nice upper!
    By now your name and particulars have been fed into every laptop, desktop, mainframe and supermarket scanner that collectively make up the global information conspiracy otherwise known as "THE BEAST."

  3. #23
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    Quote Originally Posted by decodeddiesel View Post
    Spec MK12 MOD1 uses a NAVSPEC NF 2.5-10x24. I agree though, this is a serious improvement over the Leupy.

    Many of the MK12s I have seen in the wild with the NF optics were wearing NF rings or the NF 1 piece base, which I would agree are far superior to the ARMS garbage.

    I suppose I should have specified I meant a MK12 MOD1 with the NF optic initially.


    NF is no longer producing the X24 model...

  4. #24
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    Quote Originally Posted by TRIDENT82 View Post
    I wish I had one of those particular x24's marked "navspec"...seen a few on the civi market before.

    Just to add a few changes to spec for me personally.....
    Add a UBR, instead of the sopmod/a2
    Add a Noveske 18" SS SPR instead of the Douglas
    Swap the Ops Inc. for a AAC SPR/M4 can and mount.

    I am not saying the above listed changes are vast improvements or really even improvements, however they are things that I personally would rather have on my MK 12 type gun.


    The only difference between the nav-spec and the civilian version is the nav-spec gets ~10 hours of additional testing and CQ. At any rate like I just mentioned that model is no longer being produced.

    The UBR is a solid stock but adds a lot of weight.

    I don't think you are gaining anything by going with the Noveske. Both the spec barrel, and the Noveske are good shooters.

  5. #25
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    Quote Originally Posted by Belmont31R View Post
    NF is no longer producing the X24 model...
    Actually if I am not mistaken they have stated they will no longer be offering the x24 model for civilian sale, however they are still going to be producing the NAVSPEC x24 specifically to fulfill current and future procurement contracts.

    Trident, the UBR is a nice stock for sure and I would absolutely prefer one to an A2, but it is a good deal heavier than a SOPMOD and it is a consideration if you are going to be lugging the thing around in the mountains fo A-stan for an extended period of time.

    Similarly I fail to see how exactly a Noveske is going to be any sort of real improvement over the Douglas barrel. OK perhaps the intermediate gas system is "optimized" for an 18" barrel, field reports indicate the Douglas really doesn't seem to be having any sort of issues in this area, especially suppressed.

    Also while yes the AAC can is slightly lighter than the Ops Inc, personally I wouldn't touch a single damn thing that company makes after seeing their little BS internet shenanigans over the years and knowing they are owned by Cerebus. Furthermore the AAC has no where near the track record of the Ops Inc. Just my humble opinion...

    Honestly my original statement I believe still stands. I understand you may prefer some things due to a personal preference but I still think you would be hard pressed to build a "much better" MK12 MOD1 than a Crane Spec unit.

  6. #26
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    Quote Originally Posted by Belmont31R View Post
    NF is no longer producing the X24 model...
    Good thing I bought one pretty recently then to match my x32

  7. #27
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    Quote Originally Posted by decodeddiesel View Post
    Actually if I am not mistaken they have stated they will no longer be offering the x24 model for civilian sale, however they are still going to be producing the NAVSPEC x24 specifically to fulfill current and future procurement contracts.

    Trident, the UBR is a nice stock for sure and I would absolutely prefer one to an A2, but it is a good deal heavier than a SOPMOD and it is a consideration if you are going to be lugging the thing around in the mountains fo A-stan for an extended period of time.

    Similarly I fail to see how exactly a Noveske is going to be any sort of real improvement over the Douglas barrel. OK perhaps the intermediate gas system is "optimized" for an 18" barrel, field reports indicate the Douglas really doesn't seem to be having any sort of issues in this area, especially suppressed.

    Also while yes the AAC can is slightly lighter than the Ops Inc, personally I wouldn't touch a single damn thing that company makes after seeing their little BS internet shenanigans over the years and knowing they are owned by Cerebus. Furthermore the AAC has no where near the track record of the Ops Inc. Just my humble opinion...

    Honestly my original statement I believe still stands. I understand you may prefer some things due to a personal preference but I still think you would be hard pressed to build a "much better" MK12 MOD1 than a Crane Spec unit.
    AAC has little to no shift in P.O.I. with the M.I.T.E.R. system, while OPs is great in this respect, the AAC clearly has less shift and as you noted it is lighter. I would never knock any of the crane parts short of the arms gear....NOT BECAUSE OF THE MAN...because of the inferior product the man makes. I try not to get caught up in the political ideologies and who sued who over what patent type issues...I buy strictly on a product's merit not a product's owner. One last thing the noveske and AAC do not require the special contouring by compass lake to accept the OPs and can.

  8. #28
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    Quote Originally Posted by TRIDENT82 View Post
    AAC has little to no shift in P.O.I. with the M.I.T.E.R. system, while OPs is great in this respect, the AAC clearly has less shift and as you noted it is lighter. I would never knock any of the crane parts short of the arms gear....NOT BECAUSE OF THE MAN...because of the inferior product the man makes. I try not to get caught up in the political ideologies and who sued who over what patent type issues...I buy strictly on a product's merit not a product's owner.
    Look dude, I'm not about to get into a pissing match over this. You like AAC, that's fine. Please tell me one single AAC can that is seeing front line use with the US Military and what the results have been. You can't because these isn't one. The SPR has absolutely zero ZERO combat record, where the Ops Inc literally has thousands of units in the field. Yes the AAC has some design improvements as you have noted, however who the hell knows how they will hold up to serious battlefield use.

    Now this is my opinion, however, if a company does not have the professionalism to not participate in smear add campaigns, sell their products with flashy little tattoo'd girls, and generally conduct themselves as asses in public internet forums time and time again then I have a hard time trusting them to properly make a piece of equipment that I would be forced to trust my life to. This is not even mentioning the shady business practices they seems to constantly be engaging in, taking years to fulfill orders that were promised in weeks, whole batches of out of spec suppressors they have shipped to dealers, etc, etc, etc. The company stinks, and frankly I hope to hell that the .mil never issues a single AAC product to a single troop.

    You make a very valid point, and normally I would try to avoid making a judgment on a piece of equipment based on my personal opinion on a company, however it is so damn in your face with AAC it is impossible to ignore.

    One last thing the noveske and AAC do not require the special contouring by compass lake to accept the OPs and can.
    Completely irrelevant.

  9. #29
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    As far as I am concerned, if you choose not use the Ops Inc can and the MK 12 profile Douglas barrel, you are not building a Mk12. You may prefer another spec, but then it is not a MK 12.

    The barrel was developed after much research. The chamber was cut specifically for the Mk 262 round. It uses a special tapered bore a la the Colt Python. The Ops Inc collar and muzzle device are part of the identifying features that make a MK 12 Mod 1 a MK12 Mod 1.

    Feel free to build whatever you want. Just don't expect other people to agree that it is a MK12. Call it an SPR style rifle.
    Last edited by rljatl; 06-26-10 at 13:07.

  10. #30
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    Wow, didn't mean to rattle the cages...although when you discuss specs and mk 12's all the internet seals come out to play

    I will leave the little mk 12 alone and bow out gracefully

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