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Centurion_D
04-29-2010, 5:19 PM
would actually decrease the value of the rifle..really? I have no plans of removing the sear block from my registered Colt sporter but I was surprised reading about some individuals recommending not removing the sear block. Not so much for any legal ramifications but more for keeping the value of the rifle. Anyone else agree or heard of this?

Noah3683
04-29-2010, 5:26 PM
I wouldn't remove it due to both reasons

badicedog
04-29-2010, 5:55 PM
can anyone post pics of the sear block?

97F1504RAD
04-29-2010, 6:27 PM
can anyone post pics of the sear block?

Google is your friend

http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4ADBR_enUS243US243&q=colt+sear+block

http://images.google.com/images?rlz=1T4ADBR_enUS243US243&q=colt%20sear%20block&um=1&ie=UTF-8&source=og&sa=N&hl=en&tab=wi

http://www.calguns.net/calgunforum/showpost.php?p=2784487&postcount=3

till44
04-29-2010, 7:05 PM
Probably not worth the trouble or money. Keep it as is and pick up another lower.

Centurion_D
04-29-2010, 7:32 PM
Probably not worth the trouble or money. Keep it as is and pick up another lower.

Didn't have any plans to take out the sear block. Just surprised doing so would devalue the rifle.

CHS
04-29-2010, 7:52 PM
Just surprised doing so would devalue the rifle.

I'm not. Colt diehards are a very weird bunch.

Sicarius
04-30-2010, 12:55 AM
Leave the colt a colt. When associated with cars, "its only original once" is the saying. The more you mess with it the more the value will go down.
Kevin

NSR500
04-30-2010, 1:10 AM
Green label, Blue label, Pre ban, Post ban...

I'm glad those days are over!

Fire4Effect
04-30-2010, 4:49 AM
I did a thread back in February on AR15.com about removing the sear block from a RAW Colt lower so I could attach one of the new Colt LE6940CK uppers and a Geissele two-stage trigger. I could not find a gunsmith in CA to do the work and there was no practical way to ship the lower to ADCO due to the shipping requirements for a RAW, so I had to remove it myself. I still need to order some steel dowel pins from McMaster-Carr to tap in the three holes left by the removal of the sear block. Below are some pictures from the thread on AR15.com.

http://www.fototime.com/A6E097E7A629145/standard.jpg

http://www.fototime.com/863795F9B9E0C3F/standard.jpg

http://www.fototime.com/595B63EEF2B53EB/standard.jpg

http://www.fototime.com/7E124E38708CA52/standard.jpg

http://www.fototime.com/A80F6A896D6EAC7/standard.jpg

http://www.fototime.com/2F4CC72FBE6C07D/standard.jpg

Fire4Effect
04-30-2010, 4:51 AM
More pictures.

http://www.fototime.com/CD3DCB8351B7EA8/standard.jpg

http://www.fototime.com/1F80D7797E4C957/standard.jpg

http://www.fototime.com/57B636617E4156C/standard.jpg

http://www.fototime.com/59FB71BD388079E/standard.jpg

http://www.fototime.com/0D5F1DFC278EEF9/standard.jpg

http://www.fototime.com/F539F89B1100240/standard.jpg

NSR500
04-30-2010, 4:56 AM
Do you get a second look from folks since it looks like you have a 3rd pin hole? :43:

Fire4Effect
04-30-2010, 5:13 AM
Do you get a second look from folks since it looks like you have a 3rd pin hole? :43:

All I have to do is tap in the dowel pins and it will look original.

elrcastor
04-30-2010, 6:14 AM
3rd pin on a post 5/86 == club fed

CHS
04-30-2010, 7:00 AM
3rd pin on a post 5/86 == club fed

The pin hole is way too large, in the wrong area, and the receiver still has the "nub" that would prevent an auto sear from even fitting to begin with. It should be fine.

Fire4Effect
04-30-2010, 7:12 AM
3rd pin on a post 5/86 == club fed

Colt installed the sear block to prevent someone from drilling the proper pin holes for installation of the full auto fire control components. This was strictly voluntary on Colts part and the location of the sear block pin holes effectively prevents anyone from drilling new pin holes in the correct location for installation of the full auto fire control components. Removal of the sear block does not allow you to install the full auto fire control components. ADCO has done this modification to hundreds of AR-15ís to allow the installation of Geissele two-stage trigger. They charge 50.00 for this service.

ar15barrels
04-30-2010, 8:13 AM
I'm not. Colt diehards are a very weird bunch.

Indeed.
They know all about the color of the label on the end of the box that the gun came in...

emah
04-30-2010, 11:06 AM
Are there any reliability issues when removing this?

ar15barrels
04-30-2010, 11:11 AM
Are there any reliability issues when removing this?

No.
The purpose of the block is to stop you from installing M16 fire control parts.
Because of the block, Colt went to half circle carriers which are not a full circle in the back.

If you are running a gas piston upper, the half circle carrier could actually cause problems as it would tilt more than a full circle carrier.

In that case, removing the block would better allow full circle carriers which would be more reliable.

http://ar15barrels.com/tech/ar15-carriers.jpg

ghost
04-30-2010, 2:51 PM
i posted a question a few months back about removing the sear block as well,but last minute decided to just keep the lower intact.actually i might be selling my off-list colt soon before i move to free america.

ocabj
04-30-2010, 2:58 PM
I had to remove the sear block from a Colt Sporter in order to install a 2-stage trigger (Geissele). It's the gun I use for NRA High Power and CMP Service Rifle competitions.