CMMG barrel questions..... - XDTalk Forums - Your HS2000/SA-XD Information Source!

evocrazy · 03-12-2008, 06:02 PM

I want to get this upper....

CMMG 16・Mid-Length Upper

New 16" mid-length upper. This upper comes with mid-length handguards and is complete with bolt, carrier and charging handle. CMMG semi auto bolt carriers have the shrouded firing pin to protect against hammer wear. Upper receivers are "T" marked and include extended feed ramp cuts. Features include gov't contour barrel, 11 degree recessed target crown, mid-length gas system, chrome lined 5.56mm chamber and bore, 1/7 twist, parkerizing under "F" marked forged front sight base and magnetic particle testing on every barrel. When ordering with optional gas block, barrels will not be drilled for taper pins. Barrel is marked CMMG MPC 5.56 NATO 1/7.

Whats the difference between the gov't contour barrel, the standard contour M4 barrel, and the M10 multi-role barrel which is MedCon?

Are the standard M4 and the gov't the same thing?

Whats a M10 multi-role?

I understand the weight diffs of Gov't, MedCon, SOCOM and H-Bar.

I pretty much have everything figured out but just want to make sure I understand the diffs between barrels. I hope these questions make sense!

akmjolnir · 03-12-2008, 08:56 PM

govt. barrel tapers down to a slim width under the hand guards until the FSB so it will be lighter, and unless you are trying to kill things (paper or furry) at long ranges you'll be fine with that. Not sure about the others.

I'm actually gonna get get a CMMG 20" barrel in Govt. profile. Or maybe a Bushmaster barrel.

RBOWWOW · 03-13-2008, 08:03 AM

I'm also curious...
Did I see correctly that the Mid length and the H-Bar are the only ones with the "mid-gas"? The others all have the M4 length handguard and gas system.?

selectedmarksman · 03-15-2008, 01:47 AM

Go to CMMG's website and download their catalog. There are some pictures and descriptions of all the barrel types they offer. The upper I ordered is in the SOCOM profile and I am very happy with all aspects of the product and my experience with CMMG.

...sorry about the image size.

03-12-2008, 06:02 PM	#1
evocrazy XDTalk 100 Member Join Date: Jan 2008 Location: Pennsylvania Posts: 135	CMMG barrel questions..... I want to get this upper.... CMMG 16・Mid-Length Upper New 16" mid-length upper. This upper comes with mid-length handguards and is complete with bolt, carrier and charging handle. CMMG semi auto bolt carriers have the shrouded firing pin to protect against hammer wear. Upper receivers are "T" marked and include extended feed ramp cuts. Features include gov't contour barrel, 11 degree recessed target crown, mid-length gas system, chrome lined 5.56mm chamber and bore, 1/7 twist, parkerizing under "F" marked forged front sight base and magnetic particle testing on every barrel. When ordering with optional gas block, barrels will not be drilled for taper pins. Barrel is marked CMMG MPC 5.56 NATO 1/7. Whats the difference between the gov't contour barrel, the standard contour M4 barrel, and the M10 multi-role barrel which is MedCon? Are the standard M4 and the gov't the same thing? Whats a M10 multi-role? I understand the weight diffs of Gov't, MedCon, SOCOM and H-Bar. I pretty much have everything figured out but just want to make sure I understand the diffs between barrels. I hope these questions make sense! __________________ ____________________________________________ "The Marines I have seen around the world have the cleanest bodies, the filthiest minds, the highest morale, and the lowest morals of any group of animals I have ever seen. Thank God for the United States Marine Corps!" - Eleanor Roosevelt 3rd Mar Div Okinawa, Japan Cpl, USMC Nov 95 - Nov 99 SA XD-40 4" Service Romanian G Code AK-47 CMMG Lower w/Magpul CTR & RRA 2 stage

03-12-2008, 08:56 PM	#2
akmjolnir XDTalk 100 Member Join Date: Jul 2007 Posts: 293	govt. barrel tapers down to a slim width under the hand guards until the FSB so it will be lighter, and unless you are trying to kill things (paper or furry) at long ranges you'll be fine with that. Not sure about the others. I'm actually gonna get get a CMMG 20" barrel in Govt. profile. Or maybe a Bushmaster barrel. __________________ "The trouble ain't that there is too many fools, but that the lightning ain't distributed right." 1833- 2nd AABN USMC '02-'06 XD .40 SC M16A4 clone

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03-13-2008, 08:03 AM	#3
RBOWWOW XDTalk 100 Member Join Date: May 2007 Location: Idaho Posts: 437	I'm also curious... Did I see correctly that the Mid length and the H-Bar are the only ones with the "mid-gas"? The others all have the M4 length handguard and gas system.?

03-15-2008, 01:47 AM	#4
selectedmarksman XDTalk 100 Member Join Date: Aug 2007 Posts: 142	Go to CMMG's website and download their catalog. There are some pictures and descriptions of all the barrel types they offer. The upper I ordered is in the SOCOM profile and I am very happy with all aspects of the product and my experience with CMMG. ...sorry about the image size.