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millsusaf
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Posted: 11/20/2011 10:04:45 PM
[Last Edit: 11/29/2011 11:08:11 PM by millsusaf]
My goal is to provide a detailed review on the MK-3 to include a range report. There isn't a lot of info out there about it and what there is, seems to be hard to find, answered across several posts.

CMMG is the manufacture but the MK-3 and it's 18" brother the SASS can only be purchased from CDNN Investments. CDNN does not sell guns online but can be reached at 800-588-9500. I've spoken with at least two employees and both were very helpful and courteous. When I last spoke with them (week of 11/7/2011) black was the only color available despite their ad saying Olive Drab and Dark Earth were also available. Ad, see page 30. There was also no ETA on colors other than black.



Being that you can purchase any other CMMG made part from their website, http://www.cmmginc.com/, I'm not sure why the MK-3 and the SASS can't also be purchased directly. Hopefully CMMG will give us some insight.

General Info:
A2 Birdcage flash hider
16" SST 1-10 twist lightweight contoured barrel
Mid-length gas system
WASP Coated
FF ~10" CMMG tube
3 - 2" rail pieces
T marked, M4 feed ramped "high" profile (3/16" top portion) upper
MOE MIL stock
MOE grip
1 Magpul 20rd magazine
CMMG 2-stage trigger
Ambidextrous sling plate
34 3/16" long (stock fully collapsed)
37 7/16" long (stock fully extended)
Price - $1099.99, otherwise known as $1100

Weights:
Complete rifle (no mag) - 7.616 lbs

Complete Upper - 5.370 lbs
CMMG FF tube - 11.2 oz
Upper no tube/BCG/CH - 3.0135 lbs
BCG - 1.172 lbs
CH - 1.3 oz
BCG/CH - 1.256 lbs

Compete Lower (no mag) - 2.246 lbs
Buffer - 3.7 oz
Buffer and spring - 5.25 oz

Barrel Info: From muzzle to chamber
.0710 between muzzle and gas block
.075 (assuming) at gas block
.0840 behind the gas block
.0710 taper
1.184 chamber

The overall fit and finish is very good. The upper and lower fit well together, with only a slight amount of play. This is my first manufactured purchased rifle in quite a while and I was impressed with it.

Sorry, for the crappy P&S camera pics, it's the best I have right now.

As it came out of the box (minus or plus, depending on how you look at it, the bottom 2" rail section I installed).




Lower section - Seems to be your typical AR-15/variant lower. The castle nut is not staked. The MOE grip does not sit completely flat on the back of the lower, there is a slight gap between them.







The plastic disc of the end of the buffer spring was different....



Upper section - It took 4 screws (two different sized allen heads) to get the FF tube off. It looks like it takes four more bolts to get the barrel nut. The gas key is staked. Only one of the gas block set screw locations were dimpled into the barrel. This was a little disappointing that they couldn't take the extra 30 seconds to dimple the other location too. If removing the rail, be careful, the dinky allen head screws they use are round out VERY easily. The barrel nut is some weird pattern, I used the LR-308 side of this wrench to get the barrel nut off but the lugs were not fully engaged.




















If anyone has any question please let me know, I'm happy to try to help.

I hope to get to the range tomorrow for the range report portion.

Thanks



ETA: More info about the barrel and rail.


ILikeBlack
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Posted: 11/20/2011 10:15:15 PM
Originally Posted By millsusaf:
My goal is to provide a detailed review on the MK-3 to include a range report. There isn't a lot of info out there about it and what there is, seems to be hard to find, answered across several posts.

CMMG is the manufacture but the MK-3 and it's 18" brother the SASS can only be purchased from CDNN Investments. CDNN does not sell guns online but can be reached at 800-588-9500. I've spoken with at least two employees and both were very helpful and courteous. When I last spoke with them (week of 11/7/2011) black was the only color available despite their ad saying Olive Drab and Dark Earth were also available. Ad, see page 30. There was also no ETA on colors other than black.

http://i64.photobucket.com/albums/h176/millsusaf/MK-3/cmmg.jpg

Being that you can purchase any other CMMG made part from their website, http://www.cmmginc.com/, I'm not sure why the MK-3 and the SASS can't also be purchased directly. Hopefully CMMG will give us some insight.

General Info:
A2 Birdcage flash hider
16" SST 1-10 twist lightweight contoured barrel
Mid-length gas system
FF ~10" CMMG tube
3 - 2" rail pieces
T marked, M4 feed ramped "high" profile (3/16" top portion) upper
MOE MIL stock
MOE grip
1 Magpul 20rd magazine
CMMG 2-stage trigger
Ambidextrous sling plate
Price - $1099.99, otherwise known as $1100

Weights:
Complete rifle (no mag) - 7.616 lbs

Complete Upper - 5.370 lbs
CMMG FF tube - 11.2 oz
Upper no tube/BCG/CH - 3.0135 lbs
BCG - 1.172 lbs
CH - 1.3 oz
BCG/CH - 1.256 lbs

Compete Lower (no mag) - 2.246 lbs
Buffer - 3.7 oz
Buffer and spring - 5.25 oz

Barrel Info: From muzzle to chamber
.0710 between muzzle and gas block
.075 (assuming) at gas block
.0840 behind the gas block
.0710 taper
1.184 chamber

The overall fit and finish is very good. The upper and lower fit well together, with only a slight amount of play. This is my first manufactured purchased rifle in quite a while and I was impressed with it.

Sorry, for the crappy P&S camera pics, it's the best I have right now.

As it came out of the box (minus or plus, depending on how you look at it, the bottom 2" rail section I installed).
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0750.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0748.jpg


Lower section - Seems to be your typical AR-15/variant lower. The castle nut is not staked. The MOE grip does not sit completely flat on the back of the lower, there is a slight gap between them.
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0720.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0722.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0721.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0723.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0727.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0728.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0726.jpg
The plastic disc of the end of the buffer spring was different....
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0730.jpg


Upper section - It took 4 screws (two different sized allen heads) to get the FF tube off. It looks like it takes four more bolts to get the barrel nut. The gas key is staked.
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0698.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0695.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0696.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0703.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0702.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0700.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0706.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0705.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0707.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0715.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0709.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0712.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0717.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0718.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0719.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0729.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0704.jpg
http://i64.photobucket.com/albums/h176/millsusaf/MK-3/CIMG0713.jpg

If anyone has any question please let me know, I'm happy to try to help.

I hope to get to the range tomorrow for the range report portion.

Thanks








Awesome start, keep going please!!

I have been looking for more info on this setup.

Thanks

ILB
jasonusvi
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Posted: 11/20/2011 10:25:20 PM
[Last Edit: 11/20/2011 10:26:16 PM by jasonusvi]
Good info. Assuming reliability and accuracy equivalent to DPMS LR-308 or AP4 it seems a solid alternative for the money (in an arguably more desirable set up).
THOLL223
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Posted: 11/20/2011 10:25:59 PM
[Last Edit: 11/20/2011 10:26:12 PM by THOLL223]
Waiting to hear the range report.
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alemonkey
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Posted: 11/20/2011 10:27:12 PM
Looks very nice, I'm looking forward to the range report.
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Crosse
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Posted: 11/21/2011 10:00:03 PM
The barrel is wasp lined?
millsusaf
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Posted: 11/21/2011 11:48:29 PM
[Last Edit: 11/23/2011 2:41:57 PM by millsusaf]
Originally Posted By Crosse:
The barrel is wasp lined?


Yes, I stand corrected per EWP. No, the barrel is stainless steel.

I found this today on CMMG's site.

http://www.cmmginc.com/pdfs/WASPTechSheet.pdf
37Bullet
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Posted: 11/22/2011 12:37:26 AM
I like it. Seems like a fair deal.
EWP
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Posted: 11/22/2011 5:17:52 AM
Originally Posted By Crosse:
The barrel is wasp lined?


No it's not, the whole barrel would be treated not just the inside which would have turned it black like my 12.5" CMMG 6.8 barrel that has WASP stamped on the barrel.
Norinco982lover
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Posted: 11/22/2011 5:27:31 AM
Looks like a 308 AR in a package I can afford and won't have to do many mods to. I like.
StonerAR10
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Posted: 11/22/2011 9:43:20 AM
I have the SASS 18"nd its available from local dealers and well as Gun Broker. Thet are a few of the 16" guns on Gun Broker so it can be purchased from others than CDNN. The 18" SASS is fully WASP coated in and out. It functions flawlessly and is one of the most accurate ones I've found including many of my Armalite AR10's . This week a firend from the san box came home for a few weeks and he shot mine. He was very impressed and said he wanted one. These rifles are amazing.
ILikeBlack
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Posted: 11/24/2011 1:18:29 PM
Originally Posted By THOLL223:
Waiting to hear the range report.


Ditto !!

Have you been to the range ??

Thanks

ILB
shadowcop
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Posted: 11/24/2011 1:49:36 PM
If I were looking for a .308 AR, the CMMG would be it. I've had great success with every CMMG rifle I have.
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millsusaf
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Posted: 11/24/2011 8:42:28 PM
Originally Posted By ILikeBlack:
Originally Posted By THOLL223:
Waiting to hear the range report.


Ditto !!

Have you been to the range ??

Thanks

ILB


Sorry I have not had a chance to hit the range yet, however tomorrow looks like the day. I have several kinds of ammo to test. I'm looking forward to it.

millsusaf
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Posted: 11/26/2011 1:27:39 AM
[Last Edit: 12/1/2011 10:57:02 AM by millsusaf]
Range Report -

~initial results deleted, was doing more harm than good. I will have a shooting rest soon to take my sorry ass out of the picture.~

I tried 7 different types of ammo ranging between 147-175 gr in FMJ, SP projectiles. Every single brand fed and ejected without fail. This MK-3 ate it all like a fat kid loves cake.

~initial results deleted, was doing more harm than good. I will have a shooting rest soon to take my sorry ass out of the picture.~
ND4SPD
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Posted: 11/26/2011 7:57:03 PM
I bought the CMMG 18" with the PRS stock and had very similar results @ 100yds. I'm not a MOA shooter either.
pca
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Posted: 11/26/2011 8:54:49 PM
Confused... Was this 100 yds or 40 yds? Thanks for the reports.
millsusaf
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Posted: 11/26/2011 9:07:54 PM
Originally Posted By pca:
Confused... Was this 100 yds or 40 yds? Thanks for the reports.


40 yards. I would expect a true MOA shooter to put them in basically the same hole at 40 yards. I was just letting people know that I suck, not the gun.

Gunwritr
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Posted: 11/26/2011 10:01:05 PM
[Last Edit: 11/26/2011 10:04:12 PM by Gunwritr]
40 yards?

and 2x too!

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ImpacTT
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Posted: 11/26/2011 10:17:21 PM
did it come with the CMMG 20 rds mag or the Pmag ?
millsusaf
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Posted: 11/26/2011 10:46:53 PM
Originally Posted By ImpacTT:
did it come with the CMMG 20 rds mag or the Pmag ?


PMAG

StonerAR10
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Posted: 11/27/2011 5:09:38 AM
I did three groups right at 1MOA using Black Hills 168gr. It like the heavy 168-175gr bullets. The 1-10 twist barrel like many 308s is really tight with the heaveyer bulllets. If you use quality like Black Hills or reload your own it is almost always a one hole gun.
thehellbringer
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Posted: 11/28/2011 5:38:39 PM
Mine shot slightly over moa with a strong breeze using S&B surplus. Using Federal it had 3 shots overlapping. I bought the 18" with the fluting. If I had a shooting rest or bipod and no wind I think it would have been 1 hole. Very impressed.
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jdubya87
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Posted: 11/29/2011 10:09:41 AM
Tag for more range results.
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theedge_45
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Posted: 11/30/2011 12:33:27 PM
I'd like to see the gun shoot out of a rest that takes out the shooter element. I've heard nothing but good about these guns but these results worry me.
millsusaf
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Posted: 11/30/2011 1:18:41 PM
Originally Posted By theedge_45:
I'd like to see the gun shoot out of a rest that takes out the shooter element. I've heard nothing but good about these guns but these results worry me.


Don't let them. I truly suck at shooting a rifle for some reason now.

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