cut down a crome lined barrel?

AR-15 » Rifles, Uppers, Lowers, Barrels, and more

AR Sponsor:

[ARCHIVED THREAD] - cut down a crome lined barrel?

Posted: 8/18/2004 9:55:22 AM EDT

Is it possible to cut down a crome lined barrel? Will this affect accuracy?

Posted: 8/18/2004 10:27:13 AM EDT

[#1]

Yes - Not enough for you to notice.

Posted: 8/18/2004 10:34:57 AM EDT

[#2]

Chrome lined barrels have the chrome extending out on to the muzzle crown. If the barrel is cut the chrome won’t extend out on the face of the muzzle and may lead to flaking when bullet leaves the barrel. I don’t know how much such flaking will effect accuracy, but it is the reason I have yet to cut down my usgi colt m-16a1 barrel to 17 inches for use as a dissipater barrel.

Posted: 8/18/2004 10:35:58 AM EDT

[#3]

Quoted:
If the barrel is cut the chrome won’t extend out on the face of the muzzle and may lead to flaking when bullet leaves the barrel.

This is incorrect, no problems shortening a chromelined barrel.

Posted: 8/18/2004 10:39:31 AM EDT

[#4]

Quoted:
Yes - Not enough for you to notice.

Properly done, how is cutting down a chrome barrel (any barrel) going to affect accuracy?

Range-yes. Accuracy-

Posted: 8/18/2004 11:00:50 AM EDT

[#5]

I know there will be problems when you try to ream a chrome lined barrel, but never heard of problems cutting one down.

Posted: 8/18/2004 11:06:42 AM EDT

[#6]

Quoted:
Quoted:
Yes - Not enough for you to notice.

Properly done, how is cutting down a chrome barrel (any barrel) going to affect accuracy?

Range-yes. Accuracy-.

It's suppost to be more accurate at closer distances because there's less whip with a shorter/stiffer barrel. You'll lose velocity though.

Posted: 8/18/2004 11:09:14 AM EDT

[#7]

Quoted:

I don’t know how much such flaking will effect accuracy, but it is the reason I have yet to cut down my usgi colt m-16a1 barrel to 17 inches for use as a dissipater barrel.

I don't think you can simply cut a 20" barrel down, Cleatus. You realize that you will have to get the gas port in the barrel relocated too, right? The gas system won't work with the port in the existing position. And then what do you do with the old port?

Posted: 8/18/2004 11:15:59 AM EDT

[#8]

Quoted:

It's suppost to be more accurate at closer distances because there's less whip with a shorter/stiffer barrel. You'll lose velocity though.

That's what I thought, I guess I misunderstood Forest. I had the impression that he meant it would decrease accuracy. Sorry about that.

Posted: 8/18/2004 11:22:07 AM EDT

[#9]

Quoted:
Quoted:

I don’t know how much such flaking will effect accuracy, but it is the reason I have yet to cut down my usgi colt m-16a1 barrel to 17 inches for use as a dissipater barrel.

I don't think you can simply cut a 20" barrel down, Cleatus. You realize that you will have to get the gas port in the barrel relocated too, right? The gas system won't work with the port in the existing position. And then what do you do with the old port?

Not always. I had a 16.5in. Colt upper, that was simply cut from a 20in. HBAR. That thing was my most dependable AR on a DPMS lower. Never had a singe malfunction with it. Though I have heard of other people having problems with gas system, but I never did.
flashlegs

Posted: 8/18/2004 11:27:10 AM EDT

[#10]

Really? I thought the timing required at least 3 or 4 inches of barrel past the port to get the gas system to work.

Posted: 8/18/2004 11:36:40 AM EDT

[#11]

Here's a no-handguards pic of my "Dissipator", made by Kurt at KKF to my specs from a BM 20" 1:7 A2 barrel. The gas port was opened up to .110", and it runs great.

-Troy

Posted: 8/18/2004 11:41:35 AM EDT

[#12]

Quoted:
Really? I thought the timing required at least 3 or 4 inches of barrel past the port to get the gas system to work.

Didn't on mine, Mark. Sold that bad boy to my buddy and he loves it. ...Money God, please send more!
flashlegs

Posted: 8/18/2004 11:56:31 AM EDT

[#13]

If that don't beat all!

Posted: 8/18/2004 12:13:12 PM EDT

[#14]

i did a bunch of rifles like the one in the pic........only thing extra i did was open up the gas hole in the barrel a little and never had any problems with any of them......... it was real popular in the mid 90s.

Posted: 8/18/2004 5:47:57 PM EDT

[#15]

I cut this A2 down to about 18" several years ago. No flaking chrome and it runs great.

Posted: 8/18/2004 5:55:09 PM EDT

[#16]

Quoted:
If that don't beat all!

Same problem/resolution some people have with their SBR setups. Open up the gas port a smidge and most cycling problems go away.

Posted: 8/18/2004 8:29:40 PM EDT

[#17]

thanks for all the replies and the pics

[ARCHIVED THREAD] - cut down a crome lined barrel?

AR-15 » Rifles, Uppers, Lowers, Barrels, and more

AR Sponsor:

Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.

Warning

Confirm Action

About AR15.COM

Stay Connected

Newsletter

Contact Us