AR15 buffer tube/ take down pin problem
Firearm & Gun Forum - FireArmsTalk.com > Gunsmithing & Do-It-Yourself Projects > Gunsmithing Forum > AR15 buffer tube/ take down pin problem

Reply
 
LinkBack Thread Tools Display Modes
Old 02-08-2014, 01:39 AM   #1
Feedback Score: 0 reviews
 
Join Date: Feb 2014
Posts: 1
Liked 1 Times on 1 Posts

Default AR15 buffer tube/ take down pin problem

Hello everyone, I am new to this forum and this is my first post. I hope I am posting in the correct area.

I am new to AR15ing and am currently building one. I have a Colt AR15 .223. I recently installed a carbine stock to it and replaced the buffer tube. Everything is fine and feels good. When I pull the charging handle back with the take down pin pulled out it is very easy to rack back. When I push the take down pin in and pull the charging handle back it's very hard to pull. I don't understand what the problem is. Does anyone have any idea?

__________________
Firecontrol663 is offline  
KG7IL Likes This 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 02-08-2014, 03:13 AM   #2
The only democracy and friend in the region
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
KG7IL's Avatar
 
Join Date: Sep 2010
Location: Eatonville,Washington. My nearest neighbors are cows.
Posts: 2,472
Liked 1760 Times on 979 Posts
Likes Given: 5329

Default

Welcome to the Forum.

Please stop by the Introductions http://www.firearmstalk.com/forums/f2 and introduce yourself. You will be met by the welcoming committee

Unless I am misunderstanding, the resistance would be the buffer spring. That is, IF the upper is swung open with the pin removed, and IF the upper is closed with the pin installed.

If this isn't the case, let us know.

KG7IL is offline  
 
Reply With Quote
Old 02-08-2014, 05:00 AM   #3
Moderator
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
JonM's Avatar
 
Join Date: Nov 2009
Location: Rochester WI,Rochester WI
Posts: 17,585
Liked 5671 Times on 2962 Posts
Likes Given: 375

Default

Did you also get a carbine buffer and carbine buffer spring??

If your using the original rifle length as I'm assuming that's what you had since you didn't give us pics or a model number to go by... its not going to work that way

Colt makes and has made a LOT of different models ar15. Saying colt ar15 can mean a lot of things as they have been making them for half a century

__________________

"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith

The problem with being stupid is you cannot simply decide to stop doing dumb things...

JonM is offline  
 
Reply With Quote
Old 02-08-2014, 10:35 AM   #4
Retired
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
danf_fl's Avatar
 
Join Date: Apr 2010
Location: LA (Lower Alabama),FL
Posts: 10,265
Liked 2877 Times on 1662 Posts
Likes Given: 1236

Default

It almost sounds like the bolt carrier is scraping on the pin (out = easy, in = hard).

When you disassemble for cleaning, get a punch the same diameter of the pin and see if the carrier rubs on the punch.

In other words, try to duplicate the problem without the lower attached.

__________________

Amendment II:
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)

danf_fl is offline  
SGTRud Likes This 
Reply With Quote
Old 02-08-2014, 01:00 PM   #5
Moderator
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
JonM's Avatar
 
Join Date: Nov 2009
Location: Rochester WI,Rochester WI
Posts: 17,585
Liked 5671 Times on 2962 Posts
Likes Given: 375

Default

The takedown pin itself doesn't interact with the bcg in any fashion. The rear one has a detent that is held in by the a2 stock or endplate.

Sounds like the wrong buffer/spring/tube crossthreaded or tube screwed in too deep. Or combinations of those

__________________

"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith

The problem with being stupid is you cannot simply decide to stop doing dumb things...

JonM is offline  
 
Reply With Quote
Old 02-08-2014, 04:05 PM   #6
The only democracy and friend in the region
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
KG7IL's Avatar
 
Join Date: Sep 2010
Location: Eatonville,Washington. My nearest neighbors are cows.
Posts: 2,472
Liked 1760 Times on 979 Posts
Likes Given: 5329

Default

To our OP, Firecontrol663

Again Welcome to the forum. . .. come back. help us to help you..... where are you?

We need some info on how, when this happens.

__________________
JOIN THE NRA

Email your representatives USE THIS LINK

KG7IL
KG7IL is offline  
 
Reply With Quote
Old 02-08-2014, 05:30 PM   #7
Retired
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
danf_fl's Avatar
 
Join Date: Apr 2010
Location: LA (Lower Alabama),FL
Posts: 10,265
Liked 2877 Times on 1662 Posts
Likes Given: 1236

Default

Quote:
Originally Posted by Firecontrol663 View Post
When I pull the charging handle back with the take down pin pulled out it is very easy to rack back. When I push the take down pin in and pull the charging handle back it's very hard to pull.
Are you sure the BCG is installed correctly (not upside down)?
__________________

Amendment II:
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)

danf_fl is offline  
 
Reply With Quote
Old 02-08-2014, 06:03 PM   #8
The only democracy and friend in the region
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
KG7IL's Avatar
 
Join Date: Sep 2010
Location: Eatonville,Washington. My nearest neighbors are cows.
Posts: 2,472
Liked 1760 Times on 979 Posts
Likes Given: 5329

Default

Quote:
Originally Posted by danf_fl View Post
Are you sure the BCG is installed correctly (not upside down)?
I'll admit, I just tried this. Didn't think this could happen.
I still don't think this can happen. (Unless I shear off a few parts).

I understand his question to 'hinge' on the pin.
I don't think that an upside down BCG would EVER MOVE EASILY. .. .
__________________
JOIN THE NRA

Email your representatives USE THIS LINK

KG7IL
KG7IL is offline  
 
Reply With Quote
Old 02-09-2014, 10:24 AM   #9
Retired
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
danf_fl's Avatar
 
Join Date: Apr 2010
Location: LA (Lower Alabama),FL
Posts: 10,265
Liked 2877 Times on 1662 Posts
Likes Given: 1236

Default

New people have done a lot of things I never thought were possible.

__________________

Amendment II:
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)

danf_fl is offline  
KG7IL Likes This 
Reply With Quote
Old 02-10-2014, 11:49 AM   #10
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
sgthooah04's Avatar
 
Join Date: Nov 2013
Posts: 60
Liked 2 Times on 2 Posts

Default

I would go with JonM. If the upper and lower are together when the pin is in I would look at the buffer assembly. I Would also look at the buffer retaining pin to see if it's too long haven't had a problem like that but I have gotten a few parts and springs that wouldn't work in different manufacturers guns.

Sent from my SCH-I545 using Firearms Talk mobile app

__________________
sgthooah04 is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
new buffer tube k1llapanda AR-15 Discussion 3 06-13-2013 07:05 PM
?? help - advice on buffer tube kit ?? suzychapstick AR-15 Discussion 2 01-05-2013 07:23 PM
buffer tube assembly (kit) niteglock AR-15 Discussion 16 11-11-2012 10:06 PM
AR10 buffer tube dickpalmer AR-15 Discussion 13 08-04-2012 12:03 PM
M&P 15A Buffer Tube?????? TacticalGuy15 AR-15 Discussion 1 09-29-2011 08:03 PM