WTS 16" Chrome Lined 1/7 M4 Barrels Need to sell 20 so far we have 7of20 UPDATE!

[bigant]

I have just negotiated a great price on a16" 1/7 twist pre ban chrome lined M4 barrel....for only 199.95+shipping(that is to be determined) and all we need to do is sell 20....if we get 50 people to buy the price goes down to 185.95! This is a huge savings....especially since you cannot find a 16" 1/7 twist barrel for under 225.00

Someone will ask why should I spend more for this barrel? Well you are getting a chrome lined barrel that will enable you to shoot the heavy weight ammo without worrying if it's going to work...Why heavier ammo? Well it will get you greater range for disposing of your target. Greater reliability since it's chrome lined...I will also add some links about the effects of the heavier ammo.

If you want in I need you to shoot me with a email in subject line put "M4 1/7 twist pre ban barrel" Then add in the message

Name
Quantity
address
falfiles ID So I can rate you after this is over

This is one Gel Study
http://www.ar15.com/forums/topic.html?b=3&f=16&t=167591

Data point for Heavy rounds in 1/9 twist

http://www.ar15.com/forums/topic.html?b=3&f=16&t=179026 (http://www.ar15.com/forums/topic.html?b=3&f=16&t=179026)

Bigant :biggrin:

[BroncoMafia]

I have one of these barrels.
Paid full price and worth every penny.
This is the only way to get a true mil-spec barrel for your AR right now unless you pay a LOT more for a Colt (if you can find one, I have never seen one for sale by itself).

Why 1/7 twist?
The military has finally realized that the lethal range of the M4 is too short. Using 55 or 62 grain bullets out of a 14.5" barrel, the round will only fragment out to about 150 yards. After that, it is basically a .22

The solution was provided when it was discovered that a heavier bullet (75 + gr.) would fragment reliably at much lower speeds than the lighter bullets, thus increasing the lethal range of the platform.

Hornandy TAP 75 gr. is a great example of these rounds.

The problem is that in order to stabilize these heavier bullets, the civilian standard 1/9 twist often proves innadequate.

The Military has designed a new round currently under production by Black Hills
called the MK 262 MOD 1 (http://www.dtic.mil/ndia/2003smallarms/bux.ppt) This powerpoint presentation by NSWA Crane details the story behind the new ammo.
A special order "copy" of this new ammo was done for some people by Black Hills and is being sold at Georgia Precision. Nobody else has this right now. There is another lot of a bad run of MK 262 MOD 0 being sold somewhere else. You don't want it (the military didn't).

The barrel BigAnt is offering here (at a > 10 % discount) is the best way to get into a mil-spec barrel available.

The 16" length (vs. the 14.5 of the M4) is the same as a new rifle currently being deployed in small numbers by SEAL teams (according to sources at Tactical Forums) called the "Recon Rifle".

Lots of cool new solutions being developed to make the AR platform better at it's job these days. This barrel is a part of that work.

I see the extra cost of this barrel over a similar (5.56 chamber, chrome lined, 4150 steel) 1/9 as an investment in the future of mil 5.56 ammo.
Works great with normal 55 and 62 grain stuff too.

If you are building an AR right now, this is the barrel to get.

And of course, it's Anthony, so you know your group buy value is going to be good.

Hope this helps :D
alan

[PRKsux]

Sir,
What type of flash suppressor is on the barrel?
Thank you.

[BroncoMafia]

barrel is threaded with no device.
FSB has bayonet lug

alan

[dwkennedy]

I'm intrigued...

1) Who makes this barrel?

2) Does it have M4 feedramp cuts?

3) Is it made from 4150 steel as indicated above?

4) What other parts does it come with? Front sight base, sling swivel, gas tube, delta ring, etc.

Thank you!

[BroncoMafia]

I can answer these ??s.
1) Who makes this barrel?
Barrel is made by DPMS exclusively for CMMG. You cannot buy this barrel directly from DPMS.

2) Does it have M4 feedramp cuts?
Yes

3) Is it made from 4150 steel as indicated above?
I can only take CMMG at their word that it is in fact 4150 as I do not have a non-destructive metalurgical test to confirm thier claim.

4) What other parts does it come with? Front sight base, sling swivel, gas tube, delta ring, etc.
FSB (pre-ban with bayo-lug). The guy at CMMG threw in a sling swivel installed for free, but I paid full price and he seemed to suggest he was doing me a favor. This may be something BigAnt can negotiate with his deal). Front hanguard retainer. Threaded barrel (no muzzle device). Barrel nut.

Assuming you have and are using M4 handguards, to install this barrel on your upper, you will need:
Delta ring assembly (~$10)
Gas tube (~$3)

If you don't have a bolt/carrier for your upper already, they typically go for ~$90.
Pre-ban can put whatever type of flash suppressor they want (usually ~$35).
Post ban people have a selection of brakes available.
I chose a fake A2 brake from Kurts Kustom. ($35)

Get some silver solder paste from Moses and a MAPP torch from the hardware store and do it yourself.

Hope this helps.

alan

[bigant]

Thanks BroncoMafia :bigangel:

If we can sell enough of these maybe I can negotiate some extra stuff at a good cost, but we need to get these sold....so if you are interested tell others you will not be unsatisfied with this purchase....By the way I am not making a penny of this....I put this together so that I could have the chance to buy one of these at this price!

Some of you are probably thinking where can I get the heavier ammo....well let me just say this, give it time and you'll see it at every major vendor.



bigant:biggrin:

[dwkennedy]

Here is why I think this is the optimum short AR barrel for practical use (not that any of my rifles have ever seen practical use... but we're talking 'practical', not 'usual', if you get my drift)

2700 fps is the critical velocity for M193/M855 ammunition; below 2700 fps the bullet doesn't fragment well (in gelatin). The shorter the barrel, the lower the muzzle velocity, and the shorter the range till the bullet's velocity drops below the fragmentation velocity.

From http://www.ammo-oracle.com/#fragrange
M193 (55 gr.) ammo: 20" barrel, 200 meters. 16" barrel, 150 meters. 14.5" barrel, 100 meters.

M855 (SS109, aka Green tip) is even worse (only 150m frag range out of a 20" barrel, see above link for the sordid details)

So, going from a 20" barrel to a 16" barrel (4 in. difference) loses 50 meters of range. Big drop in performance, but hey, 4" is a big difference.

Going from a 16" barrel to a 14.5" barrel (1.5 in. difference) loses another 50 meters of range. And, to be legal you'll have to file a form 1 and pay $200 to create a short-barreled rifle, or solder on a muzzle device bringing the length above 16" (defeating the purpose of having a shorter barrel.) IMHO, for legal/economic/performance reasons, 16" is the optimal length.

1/7" twist will shoot commonly available M193 and M855 well, and handle the 77 gr. OTM loads. You're only missing out on the lightest varmit loads... which you'll be shooting out of your 24" fluted, scoped varmit gun, right? :D IMHO, 1/7" is the ideal twist for "future-proofing" your rifle... (REF: http://www.ammo-oracle.com/#m193acc Note, I think this part of the document was written before 77gr. ammo 'took off'. 77gr. and heavier bullets were only used by long-range target shooters. By this time next year 77gr. loads should be commonly available, albeit more expensive than surplus M193. So 1:7" twist is becoming a very practical choice.)

The A2 barrel profile shaves nearly a pound from a HBAR barrel. This makes it easier to shoot from unsupported positions, easier to carry (you can carry an extra pound of ammo instead ;) ) and generally 'handier'. Ultra-light profiles are available that are even lighter (and without that oh-so-useful M203 notch) but not in 1/7" twist, without custom work.

Volumes have been written on chome-lined vs. stainless vs. plain. Chrome vindicates itself on cleaning ease alone. Leave the stainless for your 24" fluted varmit gun for ultimate accuracy. Practical implies reliable, which calls for a chrome lined chamber and barrel.

Therefore, this barrel is the one to buy.

I'm saving my 1:9" twist, 20" chrome-lined HBAR for the perfect range blasting barrel :tongue: Actually just about any barrel is a perfect range blasting barrel, so long as it's fun!

Any word on how many are spoken for? Will we reach the magic '50' mark??

[BroncoMafia]

Well said DWK :)
Besides the MK 262, you will find a good selection of heavier rounds that will have better performance from this barrel if you look at the usual web ammo vendors.
Maine Cartridge Company produces a 75 grain OTM round running 2600 fps at the muzzle.
Black Hills has a selection of 75 and 77 grain OTM rounds in the same performance envelope.
Federal has some Gold match available in 75 gr. as well.

All this stuff will fragment beautifully and dramatically improves the effective range of the AR carbine platform.

HERE'S A PIC FROM CMMG:
http://www.cmmginc.com/cmmg_images/tbl_images/Barrels/M4_Chrome_Lined_Barrel_16.jpg

alan

[bigant]

Well DWK We only need 20 for a great price of 199.95 thats about 25.00 cheaper.....and lets just say that we are going at this like a snail!! So we might need to get the work out about this....

bigant

[glennr]

Do these have the .223 chamber, like Oly, or the 5.56 chamber, like Colt & Bushmaster?

The other problem with this buy is that Bushmaster is running a similar deal on ar15.com (http://ar15.com/forums/topic.html?b=2&f=28&t=142060). Please don't take this as a thread hijack, because I'm buying a 16" 1/7 barrel from somewhere... but it doesn't look like either site is going to meet a minimum order, and we're just splitting our efforts here...

This is such a no-brainer, I don't understand why this barrel isn't a standard production item.

Glenn R.

[bigant]

Do these have the .223 chamber, like Oly, or the 5.56 chamber, like Colt & Bushmaster?

These are chamber for 5.56....Yeah I know that AR15 is trying to get a barrel buy from Bushmaster, but these are made and ready to ship out! Also they need to get 200 barrels sold for their price we only need 50 and I think we beat the price they are trying to get, Plus they are getting a Heavy Barrel and they will have to have it turned to look like the pic above....so if you can get some buyers go ahead...if we sell 50 the price drops to 185.99 or if we can get even more maybe we can get the price down further....

Bigant:biggrin:

[BroncoMafia]

ARF.com is really funny about group buys.
Bigant couldn't run a group buy like this over there I don't think.

It's a shame, because those guys would be all over this deal.
The whole AR community over there either has 1/7 fever or 1/7 envy.

alan

[glennr]

Well, I'm torn, so any thoughts on my decision-making process are appreciated.

I intend to buy a 16" 1/7 for a build for my wife. She prefers it be a fully lightweight barrel like 2 others I have. Failing that, because I can't find any A1 front sight bases, an A1 profile under the handguards, with a fluted section forward of the FSB seems best.

The DPMS barrel is M4 profile, but I have no use for the grenade cut, which actually interferes with further lightening forward of the FSB.

The Bushmaster barrel could be turned to anything, but requires additional expense and headache, where the DPMS barrel is ready to go.

They're both chrome-lined with military chambers, so that's a wash.

Am I missing anything here?

Glenn R.

[BroncoMafia]

Am I correct in assuming that your primary concern is weight?
Of course, sounds like it would be nice to have a third barrel just like the other 2, but . . .

One option might be to skip the usual muzzle break on the front and silver solder on a thread protector.
It would definately be lighter, and you don't need additional length to be legal.

Waiting to the ARF bushmaster group buy will probably be a long long wait :-(

FYI: MSTN is selling LMT 14.5" 1/7 chrome 5.56 M4 stripped uppers for $499.
That means thier barrel is a full $100 more than retail on this CMMG barrel.

I have never read a single negative word on these barrels over there, and I have been looking.

Aesthetics count, I understand.
What does your wife think about the M4 profile? I hear chicks dig it :-)

alan

[glennr]

Originally posted by BroncoMafia
Am I correct in assuming that your primary concern is weight?
Aesthetics count, I understand.
What does your wife think about the M4 profile? I hear chicks dig it :-)

alan

The single most important thing is weight and aesthetics. That makes sense to all of you who are married ;)

I know my wife won't like the grenade notch in the barrel. She doesn't mind fluting. If it wouldn't look too funky, I guess I could have the entire portion of the barrel in front of the front sight base turned down to the grenade notch diameter. What is that diameter, anyway? Is that the same as an A1 diameter? Or what?

My wife's a shooter. :love:

Glenn R.

[bigant]

I am not for sure, but I can check with the supplier tomorrow or maybe someone will answer that.....before I get the answer

Bigant:confused:

[BroncoMafia]

.605" on the turned down 203 ring.
.744" on the heavy section forward from there.

Not sure what a normal A1 diameter is so I can't confirm.

alan

[glennr]

That's the info I need. An A1 is .600 under the handguards. I assume it's the same in front of the FSB. I'll measure to make sure.

Count me in as a "probably" on this deal. Will know for sure after measuring.

Glenn R.

[BroncoMafia]

Good news Glenn. Glad I could help.

alan

[CMMG]

Originally posted by glennr
Well, I'm torn, so any thoughts on my decision-making process are appreciated.

I intend to buy a 16" 1/7 for a build for my wife. She prefers it be a fully lightweight barrel like 2 others I have. Failing that, because I can't find any A1 front sight bases, an A1 profile under the handguards, with a fluted section forward of the FSB seems best.

The DPMS barrel is M4 profile, but I have no use for the grenade cut, which actually interferes with further lightening forward of the FSB.

The Bushmaster barrel could be turned to anything, but requires additional expense and headache, where the DPMS barrel is ready to go.

They're both chrome-lined with military chambers, so that's a wash.

Am I missing anything here?

Glenn R.

Even with the M203 cut, you could always have the barrel turned down to a lightweight profile.

Jeff

[bigant]

Originally posted by BroncoMafia
Alright, finally ground the lugs off the sides of my bayonet mount (unusable in a 16" barrel anyway BTW) and silver soldered on my Kurts Kustom Fake A2 brake.

So here is a pic for you of my recon rifle.
Still waiting for the optics and BUIS to arrive (any day now).
Sorry to show it "naked" like this :D

Specs:
- MEGA machine upper and lower recievers
- RRA internals
- CMMG 16" 1/7 5.56 M4 4150 barrel
- ACE SOCOM stock (configured as a fixed adjustable stock with the provided screw instead of the "quick collapsable" mode which is currently pre-ban only feature :D
- FOBUS G27 pistol grip

Waiting for delivery:
- KAC RAS-2 shotshow special
- Trijicon TA31F ACOG
- ARMS #40

Well I am only responsible for some of the that:biggrin:....I love the looks of that Recon..Just think what it will look like with the Trijicon :love:

Bigant

[1gewehr]

I'm in.
Thanks, Bigant!
1gewehr

[dannonlae]

Shucks, i could use another 16" barrel or so.
count on me for two barrels.
Danny

[BroncoMafia]

Just took mine out for it's maiden blastoff.
My first AR build and it ran like a champ!
180 rounds of XM193 flew 50 yards downrange.

I wasn'tting for accuracy or stabilization of heavy bullets, just wanted to make sure my WESCOG'ed AR ran without problems.

IT did.
After I dialed in my optics, I was making nice 2 inch groups in steady aimed fire. No precision work attempted.

My last mag was fired at 25 yards as the group of 4 other people at the range was packing up to go.

I dumped the 30 round mag into an 8 inch bull fatsre than I have ever fored on an indoor range before.

When I was done, these rimfire target shooters were looking at me like I had a big "Wild Man" sign on my back!

I said loudly to them: "Now THATS"S the way to end a trip to the range!"
They loved it :D

I was thrilled with the rifle, the optics (ACOG by BIGANT! thank you very much
:bow: ) the barrel, the stock, EVERYTHING!

These things are so easy to build it is amazing.

Now to get some 75 grain TAP and test it at 100 yards :-)

Guys, Anthony (BigAnt) is the man when it comes to getting gear for your FAL or ARs.
I have never met another vendor on the Files or any other board who offers deals like he does and is so obviously passionate about the stuff he sells.

Trust Anthony to do you right and buy these barrels.
They RULE! I just wish I could have saved the money you guys are gonna save to help pay for all the other cool stuff I have been buying :(

Later,

[bigant]

Originally posted by BroncoMafia
Just took mine out for it's maiden blastoff.
My first AR build and it ran like a champ!
180 rounds of XM193 flew 50 yards downrange.

I wasn'tting for accuracy or stabilization of heavy bullets, just wanted to make sure my WESCOG'ed AR ran without problems.

IT did.
After I dialed in my optics, I was making nice 2 inch groups in steady aimed fire. No precision work attempted.

My last mag was fired at 25 yards as the group of 4 other people at the range was packing up to go.

I dumped the 30 round mag into an 8 inch bull fatsre than I have ever fored on an indoor range before.

When I was done, these rimfire target shooters were looking at me like I had a big "Wild Man" sign on my back!

I said loudly to them: "Now THATS"S the way to end a trip to the range!"
They loved it :D

I was thrilled with the rifle, the optics (ACOG by BIGANT! thank you very much
:bow: ) the barrel, the stock, EVERYTHING!

These things are so easy to build it is amazing.

Now to get some 75 grain TAP and test it at 100 yards :-)

Guys, Anthony (BigAnt) is the man when it comes to getting gear for your FAL or ARs.
I have never met another vendor on the Files or any other board who offers deals like he does and is so obviously passionate about the stuff he sells.

Trust Anthony to do you right and buy these barrels.
They RULE! I just wish I could have saved the money you guys are gonna save to help pay for all the other cool stuff I have been buying :(

Later,



Alan,

Glad you liked you build....Now only I can get the other 14 barrels sold I will be on my way with an AR build too....Thanks for the kind words:smile: So whats next on the shopping list?

How about a IOR Group Buy?:uhoh:

[BroncoMafia]

WHOA!
Don't tell me you carry IOR stuff now?
I think my FALs might be feeling a ittle neglected :biggrin:

[glennr]

OK, barrel diameter works. Last question--do I need to have a "real" M4 upper, complete with M4 feed ramp cuts, or is this barrel set up for a "normal" A2 feed ramp?

Forgive me if that's a stupid question--I'm attending Colt's Armorer school tomorrow and will learn a lot of stuff there--but I want to give a solid "yes" or "no" so as to finally commit to this purchase.

Thanks again for all the info & assistance.

Glenn R.

[CMMG]

They have standard A2 cuts. The M4 cuts are added to the barrel/receiver after assembly.
Jeff

[glennr]

Great, I'm a solid "go".

Glenn R.

[dwkennedy]

Looks like this deal is on AR15.com now:

http://www.ar15.com/forums/topic.html?b=7&f=121&t=196939&w=activePop

One thing I noticed is that the front sight base is cast, not forged. I have one barrel with a cast FSB and it's never given me a problem. But forged is the 'real deal'.

[bigant]

Okay...just a heads up this has been put on the AR15.com Board....so if you want in you need to let me know ASAP! Since I know this will go fast on the AR board:biggrin: I cant wait to get one of this for my AR build

Bigant:shades:

[glennr]

Guys,

Due to an unexpected financial situation--mainly, finishing Colt Armorer school--I'm going to have to bow out of the deal.

Thanks for the opportunity & best of luck.

Glenn R.

[bigant]

Hey this is on the AR15 board so lets try and sell more barrels than them! :devil:

[dannonlae]

I'm committed for two, it is hard to believe there are only 5 other people out there. Any news, bigant?

[bigant]

Since I am getting these barrels from CMMG....they have put this up on AR15 and they put a date of the 20th...so this will be open until then and I will or they will post here, with payment details...this is a great deal on a barrel that is chrome lines and Mil Spec with the 1/7 twist with the M4 profile...

Bigant

[CMMG]

We have hit our goal of 20!! We will start accepting payments today. Please make sure and include your real name, user name, and of course that you are in on the group buy and if you are getting either a complete upper(s) or barrel(s).

You can call 660-248-2293 for credit card orders, paypal to sales@cmmginc.com or send money orders to the address below. No surcharge for CC or PP.

Barrels will shipping out to you as payment is collected.

Please feel free to post any questions or comments

[FALx2]

I'd be more interestedin a DSA FAL 16-1/4" US made barrel. Any chance you'd try to do another DSA group buy? I got a Type 2 receiver, and I love it!!

[1gewehr]

For the benefit of those of us who haven't been following this on ARF.com, would you please summarize the options and prices?
I'm in for a barrel, but if the complete upper is well priced, I might be able to swing it.
Thank you,
1gewehr

[318hyd]

put me down for One. 318hyd:beer:

[bigant]

Just Paid for mine....also if you send them a paypal Shipping is 8.00

I cant wait to get this Barrel!!!!

[CMMG]

1gewehr, you can get a complete upper (A2 or A3) with bolt, carrier, charging handle and M4 handguards for $474.95. Shipping would be $10

318hyd, our paypal account is sales@cmmginc.com or you can call 660-248-2293 for credit card orders.

bigant--your barrel will be shipping today.

Jeff

[187]

Oh what the hell....put me down for one :)

Paypal sent to CMMG.

Thanks.

[bigant]

I got my barrel today.....Now all I need is the Rest of my parts from RRA and My Fake A2 from Kurts Kustom Firearms to come in and I will have myself a sweet ass looking M4orgery!!! Toped with a Eotech 552:biggrin:

Just a FYI if your looking for Mags Surfit @ AR15.com has Labelle 30rnd Mags Green Followers 5 for 100.00 shipped

Bigant

[1gewehr]

WooooHoooo!!!
Got it today! Real purty little thing! Guess, I'll have a new poodle-shooter soon.
Thanks!
1gewehr

[318hyd]

I Received a complete upper receiver yesterday. :p Looks great:shades: I will test on my preban next week when my shift is over at work. Can't wait. :p