front iron sight 6.25 or 7.50??


Firearm & Gun Forum - FireArmsTalk.com > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion > front iron sight 6.25 or 7.50??

Reply
 
LinkBack Thread Tools Display Modes
Old 04-09-2013, 09:40 PM   #1
Feedback Score: 0 reviews
 
jrl78's Avatar
 
Join Date: Feb 2013
Posts: 64
Liked 11 Times on 9 Posts

Default front iron sight 6.25 or 7.50??

Hey there everyone, looking to put a standard a frame front iron sight on my ar. On bravo company website they have one listed as a 6.25 and another as a7.50. What's the difference???



__________________
jrl78 is offline  
 
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 04-10-2013, 04:29 AM   #2
Feedback Score: 0 reviews
 
Quentin's Avatar
 
Join Date: Apr 2010
Location: Idaho
Posts: 6,596
Liked 1032 Times on 725 Posts
Likes Given: 1029

Default

You need to measure the diameter of your barrel at the gas port then get that size FSB. Usually 0.750" fits gov't and M4 profiles while 0.625" fits pencil barrels. Your numbers are off by a factor of 10.

__________________

______
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together. You'll remember the quality of a gun long after you forget how much you paid for it.
________________________________________
US Army 1966-69, VFW Life Member, Retired Geek

Quentin is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Night Sight / Front sight? CaptThomas Mini-14 Forum 1 10-17-2012 01:36 AM
Trying to decide which front iron sight to buy. GREGULON Optics & Mounts 2 03-25-2012 01:43 AM
A2 style iron sight adjustment help. easterner123 AR-15 Discussion 10 08-05-2011 07:36 PM
Iron Sight S&W M&P9mm newguy22 General Handgun Discussion 4 05-20-2011 03:31 AM
Iron sight help spittinfire AR-15 Discussion 9 07-10-2010 10:25 AM