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Who has 16" M4 barrels in stock?
2/7/2012 7:40:06 AM
Howdy Guys,
Been trying to help a friend build a rifle and o nly need the barrel. So far. every place we have contacted has the M4 chrome lined barrels backorderd from 6-8 weeks.
Does anyone have them in stock?
Thanks,
CMOS
Been trying to help a friend build a rifle and o nly need the barrel. So far. every place we have contacted has the M4 chrome lined barrels backorderd from 6-8 weeks.
Does anyone have them in stock?
Thanks,
CMOS
2/7/2012 9:02:09 AM
I just finished a rifle using this barrel, it is very nice, I would compare it to $400 barrels... Its $60 off, if you are looking for a carbine.. This same sight has daniel defence chrome lined barrels for 190$ with a free pmag
http://www.surplusammo.com/fn-mfg-ar-15-chf-16-m4-5-56-carbine-barrel-chrome-lined-1-7/
http://www.surplusammo.com/fn-mfg-ar-15-chf-16-m4-5-56-carbine-barrel-chrome-lined-1-7/
2/7/2012 9:17:11 AM
2/7/2012 10:15:08 AM
4/6/2012 12:01:51 PM
Originally Posted By albatrossarmament:
Could you settle for an M4A1 barrel? $250 with FSB and barrel nut.
PSA M4A1 Barrel
Could you settle for an M4A1 barrel? $250 with FSB and barrel nut.
PSA M4A1 Barrel
Is ths what's considered a "standard" M4 barrel? I don't understand the A1 nomenclature with regards to a barrel.
Thanks,
CMOS
4/6/2012 1:56:38 PM
The standard profile is thinner under the hand guard as in the first example. M4A1 is thicker under the hand guards as in the last example.
4/6/2012 5:37:37 PM
I need help.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
4/6/2012 8:50:40 PM
Originally Posted By CMOS:
I need help.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
I need help.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
It sounds like you have a 16" barrel with a mid-length AR-15 gas system. If your gas tube winds up where it's supposed to in relation to the upper receiver then you fortunately got the right mid-length gas tube, but your rail system is not right for that configuration.
ETA - Carbine gas 16" barrel (top) and mid-length gas 16" barrel (bottom):
4/6/2012 9:06:27 PM
Originally Posted By MMcfpd:
It sounds like you have a 16" barrel with a mid-length AR-15 gas system. If your gas tube winds up where it's supposed to in relation to the upper receiver then you fortunately got the right mid-length gas tube, but your rail system is not right for that configuration.
ETA - Carbine gas 16" barrel (top) and mid-length gas 16" barrel (bottom):
http://i150.photobucket.com/albums/s95/MMcfpd/001.jpg
Originally Posted By CMOS:
I need help.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
I need help.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
It sounds like you have a 16" barrel with a mid-length AR-15 gas system. If your gas tube winds up where it's supposed to in relation to the upper receiver then you fortunately got the right mid-length gas tube, but your rail system is not right for that configuration.
ETA - Carbine gas 16" barrel (top) and mid-length gas 16" barrel (bottom):
http://i150.photobucket.com/albums/s95/MMcfpd/001.jpg
That explains it. We wanted to build a true M4 upper, not a mid-length. The DD 9.5FSP rail system is for a true 16" M4 barrel. We'll have to see if they will exchange the barrel for a real M4 type.
Thanks,
CMOS
4/7/2012 1:06:48 AM
Originally Posted By CMOS:
That explains it. We wanted to build a true M4 upper, not a mid-length. The DD 9.5FSP rail system is for a true 16" M4 barrel. We'll have to see if they will exchange the barrel for a real M4 type.
Thanks,
CMOS
Originally Posted By MMcfpd:
It sounds like you have a 16" barrel with a mid-length AR-15 gas system. If your gas tube winds up where it's supposed to in relation to the upper receiver then you fortunately got the right mid-length gas tube, but your rail system is not right for that configuration.
ETA - Carbine gas 16" barrel (top) and mid-length gas 16" barrel (bottom):
http://i150.photobucket.com/albums/s95/MMcfpd/001.jpg
Originally Posted By CMOS:
I need help.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
I need help.
Today I was helping a friend build a complete rifle. The upper is a flattop with a 16" RRA barrel (heavy under the handguard area) and we're finishing it with a Daniel Defense 9.5FSP rail system - but we had a big problem.
Once assembled we quickly noticed that the about a full 2" of the gas tube was fully exposed and not covered by the rail system. MY rifle that we had sitting on the bench only had about a 3/8" area exposed. We quickly discovered that my friend's barrel front sight tower location was a full 2" farther forward than on my 16" M4 lightweight barrel. WTF!? I have never seen this difference in sight tower location in a 16" barrel.
Is there some other 16" standard that I am unaware of (apparent so)?
Help.
CMOS.
It sounds like you have a 16" barrel with a mid-length AR-15 gas system. If your gas tube winds up where it's supposed to in relation to the upper receiver then you fortunately got the right mid-length gas tube, but your rail system is not right for that configuration.
ETA - Carbine gas 16" barrel (top) and mid-length gas 16" barrel (bottom):
http://i150.photobucket.com/albums/s95/MMcfpd/001.jpg
That explains it. We wanted to build a true M4 upper, not a mid-length. The DD 9.5FSP rail system is for a true 16" M4 barrel. We'll have to see if they will exchange the barrel for a real M4 type.
Thanks,
CMOS
I believe a true M4 barrel is 14.5" with carbine gas system. Unfortunately you'd need a perm break/hider attached, make it into an AR pistol or register it as an SBR which be a waste(may as well get a 11.5" or shorter barrel if that be the case).
Also I just saw this on slickguns.. pretty good deal with a cheap free float thrown in. M4 barrel and free float rail.
4/7/2012 2:46:25 PM
Well we already have the DD rail system so we'll need a 16" barrel that fits this configuration.
How do I specify the correct 16" M4 barrel when I order one?
I've built 5 other M4's to date and have never run into this sight tower issue.
CMOS
How do I specify the correct 16" M4 barrel when I order one?
I've built 5 other M4's to date and have never run into this sight tower issue.
CMOS
4/7/2012 4:00:51 PM
Originally Posted By CMOS:
How do I specify the correct 16" M4 barrel when I order one?
How do I specify the correct 16" M4 barrel when I order one?
Specify a carbine gas system.
