Warning
Close
Confirm Action
Are you sure you wish to do this?
Confirm
Cancel
Member Login
Click to Login
View Full Site
Home
Forum Tools
Code of Conduct
Forums
AR-15
AK-47
Handgun
Precision Rifles
Armory
Training
Competitive Shooting
General
Outdoors
Archery
Hometown
Industry
Archives
Firearm Resources
Guides & Manuals
Videos
Ammo Oracle
Range Finder
Constitution
Equipment Exchange
Guns & Gear Deals
Build Your Dream Rifle
Shop AR15.COM
Login
Register
?
10196 Online
Discussion Forums
AR-15
AK-47
Handgun
Precision Rifles
Armory
Training
Competitive Shooting
General
Outdoors
Archery
Hometown
Industry
Archives
Firearm Resources
Guides & Manuals
Videos
Ammo Oracle
Range Finder
Constitution
Equipment Exchange
EE Listings
EE Rules
Getting Started
Build Your Dream Rifle
Guns & Gear Deals
AR-15
AK-47
Handgun
Precision Rifles
Armory
Training
Competitive Shooting
General
Outdoors
Archery
Hometown
Industry
Equipment Exchange
Archives
Login
Register
?
AR-15
»
AR Discussions
Site Notices
[ARFCOM NEWS] ATF Gets SUED Over Braces!
1/27/2021 11:01:57 PM
THE PDW You Need?!
1/27/2021 12:46:26 AM
[ARCHIVED THREAD] - what company logo is a circle in a square?
ARCHIVED
Posted: 3/12/2005 6:35:23 PM EST
I have an A1 upper receiver with a circle in a square just in front of the ejection port cover.
Posted: 3/12/2005 6:40:11 PM EST
That's a Colt proof mark, which was stamped on all factory assembled rifles up until about 8-10 years ago.
-Troy
Posted: 3/12/2005 6:52:00 PM EST
wow, I thought colt only used a C mark
[ARCHIVED THREAD] - what company logo is a circle in a square?
ARCHIVED
AR-15
»
AR Discussions
AR-15
AK-47
Handgun
Precision Rifles
Armory
Training
Competitive Shooting
General
Outdoors
Archery
Hometown
Industry
Top
Top