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titus7
08-30-2009, 9:17 PM
Hey guys I am looking for somewhere to have an upper built for a mark 12 AR. Would also like pics of them if you got em. Would even settle for a DPMS SASS upper that I can use as a platform to customize if any of you know where I can get one. Thanks

cmace22
08-30-2009, 9:40 PM
I didnt go with the Ops Inc break because at the time I couldnt find one.....

Try MSTN for a build. Might be a little pricey though.


http://i19.photobucket.com/albums/b164/cmace22/mod0002.jpg

http://i19.photobucket.com/albums/b164/cmace22/stuff002.jpg

http://i19.photobucket.com/albums/b164/cmace22/stuff010.jpg

Bowser
08-30-2009, 9:41 PM
http://www.m4carbine.net/showthread.php?t=20131

Larry asked me to start this thread and post his opinion of the Centurion Arms SPR that was provided to him by Monte LeClair.

I took some photos of this particular rifle at the 11-13 July 08 3 Day Advanced Pistol/Carbine class that Larry taught in South Hill Virginia.




I'll let the pictures speak for themselves.

http://img.photobucket.com/albums/v613/Tim_Orrock/Vickers%20Advanced%20Carbine%20and%20Pistol%2011-13%20July%2008/Centurion%20Arms%20SPR/P1000556B.jpg

http://img.photobucket.com/albums/v613/Tim_Orrock/Vickers%20Advanced%20Carbine%20and%20Pistol%2011-13%20July%2008/Centurion%20Arms%20SPR/P1000557B.jpg

http://img.photobucket.com/albums/v613/Tim_Orrock/Vickers%20Advanced%20Carbine%20and%20Pistol%2011-13%20July%2008/Centurion%20Arms%20SPR/P1000558B.jpg

http://img.photobucket.com/albums/v613/Tim_Orrock/Vickers%20Advanced%20Carbine%20and%20Pistol%2011-13%20July%2008/Centurion%20Arms%20SPR/P1000560B.jpg

http://img.photobucket.com/albums/v613/Tim_Orrock/Vickers%20Advanced%20Carbine%20and%20Pistol%2011-13%20July%2008/Centurion%20Arms%20SPR/P1000561B.jpg

Dangerous1
08-30-2009, 9:47 PM
http://img86.imageshack.us/img86/3529/kaiser1024.jpg (http://img86.imageshack.us/i/kaiser1024.jpg/)

I need optics. :D
Denny's custom 18" upper from Global Tactical Supply
http://global-tactical.com/customupper18sprkreiger177middygas.aspx

KRIEGER STAINLESS STEEL 1:7.7 TWIST MATCH BBL
M4 RAMPS
MIDDY GAS SYSTEM
LOW PRO GAS BLOCK
CMT M4 UPPER
LARUE 13.2" RAIL SYSTEM
DENNY'S GUNS SUPER DUTY M16 BCG
BARREL HAS THE PROPER STEPS FOR OPS INC M4 SILENCER

Jicko
08-30-2009, 9:49 PM
I need optics. :D
Denny's custom 18" upper from Global Tactical Supply
http://global-tactical.com/customupper18sprkreiger177middygas.aspx

Sorry to say that except that it is 18", this is no where close to a Mk12, not saying that it is not a good gun, it may even out shoot a Mk12.

cmace22
08-30-2009, 9:51 PM
http://en.wikipedia.org/wiki/United_States_Navy_Mark_12_Mod_X_Special_Purpose_R ifle


http://www.mstn.biz/index.php?option=com_joomla_store&jStore=product_info&products_id=3&Itemid=27

Dangerous1
08-30-2009, 9:52 PM
Sorry to say that except that it is 18", this is no where close to a Mk12, not saying that it is not a good gun, it may even out shoot a Mk12.

Sorry, I'm a noob. What exactly is a Mk12?

Barney Gumble
08-30-2009, 9:52 PM
I used JTAC Supply for my Mod 0. I had priced one out with Wes at MSTN but it was crazy expensive.

There's a huge Mk12 thread over at arfcom: http://www.ar15.com/forums/topic.html?b=3&f=118&t=294303

cmace22
08-30-2009, 9:55 PM
Sorry, I'm a noob. What exactly is a Mk12?

See post #6

Dangerous1
08-30-2009, 9:56 PM
See post #6

I just saw it... so... I need optics and a bipod?

cmace22
08-30-2009, 10:00 PM
I just saw it... so... I need optics and a bipod?

It helps if you read the info instead of just looking at the pictures :)

Jicko
08-30-2009, 10:02 PM
OP: if you want a Mk12 Mod 1, here is your best bet http://centurionarms.com/products/p002_mk12_mod1_upper.html

They claimed that they have the same barrels as the official Mk12s.


***YOU WILL NOT FIND A BETTER BARREL THAN THIS***

We now have actual MK12 barrels. These barrels come from the same machines and the same people who make the military MK12 barrels for the Navy Special Operations community. These barrels are the result of tens of thousand of dollars in development done by the U.S. government to give our Special Operations guys the best weapon system they can have. We have spoken with many operators who have used these barrels and carried them in combat and have found unanimous satisfaction with their reliability and accuracy.

Specs
Material: Blackened 416R Stainless
Barrel extension: M4 feed ramps
Chamber: optimized for use with MK262 (Black Hills 77gr equivalent)
Twist: 1 in 7 right hand
Contour: for use with OPS inc. suppressor and can also use AAC suppressors
Length: 18 in and threaded 1/2x28 for use with most common muzzle devices

bondmid003
08-30-2009, 10:04 PM
The MK 12 is featured heavily in the book Lone Survivor

Dangerous1
08-30-2009, 10:06 PM
It helps if you read the info instead of just looking at the pictures :)

A Mk12 upper has to be a Colt or ArmaLite? :confused:

bondmid003
08-30-2009, 10:12 PM
I think that Colt is just the provider of the real Mk12s but I don't see how you couldnt use an upper provided by the above company. 1800 for an upper is pretty steep though, you might as well go gas piston for that price

cmace22
08-30-2009, 10:14 PM
A Mk12 upper has to be a Colt or ArmaLite? :confused:

The specification section should answer most of your questions. but as your rifle is concerned it does not match an MK12 rifle because:

The barrel is different
your handguards are different
your BUIS are different
your MB/FS is different
No correct optics

Most people that claim to have an MK12 clone try and get things as close as possible.




Its a very nice rifle just not close to a MK12

The one I had built resemble a MOD 0..... Although my MB was incorrect and I could have had a better barrel. But visually I was 99% correct.

Jicko
08-30-2009, 10:15 PM
A Mk12 upper has to be a Colt or ArmaLite? :confused:

Unless it is built by Crane's contractor, everything else is just a "clone". Now, how far you want to get to "part/spec" exact, depends on how deep your pocket is.

The basics, for Mod 1, just off top of my head:
- 18" SS match grade barrel with Mk12 SPR contour, steps cut for OPS INC collar and brake
- OPS INC brake
- KAC handguard
- KAC BUIS
- PRI gas buster CH (i believe this is on the spec too)
- KAC 2-stage trigger
- ARMS #22 HIGH rings
- Leupold scope (i had seen a few different scopes on them)

Q
08-30-2009, 10:16 PM
A Mk12 upper has to be a Colt or ArmaLite? :confused:

A Armalite upper is for the SDMR.;)

Dangerous1
08-30-2009, 10:18 PM
Oh. ok. so I have a regular 18" AR then. :) I'm working on the Scope. Sort've tight on funds right now. Thanks for clearing things up!

Jicko
08-30-2009, 10:18 PM
Here is mine, still not 100% part exact.

http://images24.fotki.com/v863/photos/2/26966/4762546/IMG_2703-vi.jpg

- 18" Douglas Air-guage SS match grade barrel
- OPS INC brake
- KAC HG
- Leupold Mk4 3.5-10x scope
- colt F/A bc, and colt bolt
- upgraded to Larue SPR mount from ARMS rings, + docter
- harris bipod w/ arms mount
- (not in the pic) but currently wearing PRI tactical latch on the CH
- (probably will go get KAC's BUIS or stick with Matech)
- (maybe i will change the gas block someday)

jdberger
08-30-2009, 10:21 PM
my version in 6.8

Still looking for a decent scope for it.

http://i2.photobucket.com/albums/y32/jdberger/DSC02031.jpg

cmace22
08-30-2009, 10:21 PM
Here is mine, still not 100% part exact.

http://images24.fotki.com/v863/photos/2/26966/4762546/IMG_2703-vi.jpg


Nice.....

Is yours as heavy as mine was. I think I was pushing 12lbs.

ST5MF
08-30-2009, 10:23 PM
Hey guys I am looking for somewhere to have an upper built for a mark 12 AR. Would also like pics of them if you got em. Would even settle for a DPMS SASS upper that I can use as a platform to customize if any of you know where I can get one. Thanks

The only real MK12's outside of the ones in use by the U.S. Military are made right here in Coronado, CA.

http://www.centurionarms.com/products.html

Jicko
08-30-2009, 10:26 PM
Nice.....

Is yours as heavy as mine was. I think I was pushing 12lbs.


A Mk12 is just not a light build.... best shot prone or with support.... that's why, most if not all, are seen with 20 rounders....

ST5MF
08-30-2009, 10:40 PM
A Mk12 is just not a light build.... best shot prone or with support.... that's why, most if not all, are seen with 20 rounders....

Correct the MK12 is a "PRECISION" rifle and currently part of the sniper suite issued to NSW Snipers.

If you are looking for a "bang away" upper... this ain't it.

Dangerous1
08-30-2009, 10:44 PM
How come in Wiki it says that it's a light build and that its 10 pounds with optic and 30rds?

snaggletooth
08-30-2009, 11:02 PM
Cuz thats wikipedia and wikipedia doesnt always get everything right. It usually gets things pretty close for the majority of it but not right all the time.

J_Rock
08-30-2009, 11:49 PM
Cuz thats wikipedia and wikipedia doesnt always get everything right. It usually gets things pretty close for the majority of it but not right all the time.

Light is a relative term. Its 'light' compared to most other percision rifles which are 15+ lbs but compared to most ARs it doesnt seem light at all.

Fully decked out you are probably looking at 11-12 lbs loaded.

Sick Boy
08-31-2009, 12:15 AM
Damn, those are all pretty ****ing nice!!

sonicbuff
08-31-2009, 12:40 AM
I thought there are quite a few AR15 match rifles can be very accurate.

What's the benefit to clone a Mk12 ?

TurboFall
08-31-2009, 3:36 AM
I thought there are quite a few AR15 match rifles can be very accurate.

What's the benefit to clone a Mk12 ?

Secret Squirrels use(d) it :D

xibunkrlilkidsx
08-31-2009, 7:00 AM
Damn, those are all pretty ****ing nice!!

no **** i now know where i want to go with my ar build.

Rukus
08-31-2009, 7:28 AM
ADCO also offers MK12 uppers in both varieties on their website.

aplinker
08-31-2009, 11:43 AM
ADCO will be cheaper than MSTN or Centurion.

WOA makes an SPR contour barrel that's pretty reasonably priced.

Given that you don't want an actual SPR, you'd probably be better off building something "similar." I think the SPR profile is heavier than it need be. My problem is I think the SPR Mod 0 is too beautiful to mess with, even if it is too heavy and (now) dated... The Mod 1 isn't much better, either.

If you want a precision 18" rifle, consider a lighter profile with a VTAC handguard. The OPS brake is a bid heavy and very expensive, especially since the collar and proper timing cost $ and don't add anything (since we can't use them).

Barney Gumble
08-31-2009, 12:47 PM
+1 to what uclaplinker said.

The reason you build a Mk12 is because you dig the look and/or historical authenticity. Especially with the Mod0. Otherwise it's a pain to pull all the parts together and have someone build it.

titus7
08-31-2009, 6:09 PM
Does anyone know if the Centurion, MSTN, or ADCO will fit up to a POF lower?
For me I really like the looks for one and it would be a fun mid range rifle. Also who said it ..."secret squirrels use it" lol

aplinker
08-31-2009, 7:23 PM
Does anyone know if the Centurion, MSTN, or ADCO will fit up to a POF lower?
For me I really like the looks for one and it would be a fun mid range rifle. Also who said it ..."secret squirrels use it" lol

Yeah... why wouldn't it?

jdberger
08-31-2009, 7:39 PM
If you want a precision 18" rifle, consider a lighter profile with a VTAC handguard. The OPS brake is a bid heavy and very expensive, especially since the collar and proper timing cost $ and don't add anything (since we can't use them).

But oh, yes you can.

Next time that guy with the AK is beaning you with his brass from 2 benches down, just back that brake to about even with the end of the bench and thump away. It's a teeth rattler. :43:

aplinker
08-31-2009, 7:50 PM
But oh, yes you can.

Next time that guy with the AK is beaning you with his brass from 2 benches down, just back that brake to about even with the end of the bench and thump away. It's a teeth rattler. :43:

You can get a loud brake for $20. You can't get one as pretty as the OPS for that, though.

thmpr
11-15-2009, 3:24 PM
PRI makes the real thing as per their description.

xibunkrlilkidsx
11-15-2009, 7:46 PM
^lol only 2 months later.