The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > The Smithy

Reply
 
Thread Tools
Old April 14, 2010, 05:08 PM   #1
daytooday
Junior Member
 
Join Date: April 14, 2010
Posts: 9
Romanian ak 47 barrel help

New to gun builds. I have a romanian kit but had to order a barrel the one they sent doesn't have a place for the pin that goes through the front trunion. Is there anything else i can do or do I need to get a new barrel that has the cut out for the pin.

thanks in advance
daytooday is offline  
Old April 14, 2010, 09:37 PM   #2
Dfariswheel
Senior Member
 
Join Date: May 4, 2001
Posts: 6,819
The reason it has no cut for the pin is so you can set the head space on the barrel before the cut is made.

Most of the older AK kits came with the original barrel and trunnion.
On those, all you had to do was press the barrel in until the cut in the barrel lined up with the hole.
Since the ATF stopped imports of kits with original barrels, the barrels are not the original and are not fitted to that trunnion. You have to fit them.

On the AK rifles, the head space is set by using a head space gage set and pressing the barrel in until the head space is correct. Then the cut is made by using a drill to carefully drill through the pin hole, which cuts the groove in the barrel.

In other words, you have an un-head spaced barrel that's never been properly fitted to that barrel trunnion.
You have to head space it to make it safe to fire.

Do a Google search. There's several sites out there that show how to use head space gages to set the head space on an AK build.

Last edited by Dfariswheel; April 14, 2010 at 09:42 PM.
Dfariswheel is offline  
Old April 15, 2010, 08:04 AM   #3
mapsjanhere
Senior Member
 
Join Date: August 6, 2009
Location: Albuquerque
Posts: 2,344
To add to that, just in case it isn't clear. Correct head space is a safety critical item, you get it wrong, you either have a non-functional gun with a useless barrel (best case) or a deathtrap where an overly large head space might lead to blown cases. If dfariswheel's post didn't trigger a "doh" moment, take it to someone who knows what they're doing.
__________________
F 135 - the right choice
mapsjanhere is offline  
Old April 20, 2010, 12:30 PM   #4
famine
Senior Member
 
Join Date: April 20, 2005
Location: Buffalo MN
Posts: 113
There are oversized barrel pins available for this also. It allows you to use the hole in the trunion as a guide vs. trying to drill the same sized hole through the curve of the barrel
famine is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 05:49 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.05931 seconds with 7 queries