Home Forums Classifieds Blogs Today's Posts Search Social Groups



  
SIGN-UP
Notices

Glock Talk
Welcome To The Glock Talk Forums.

 
  
Reply
 
Thread Tools Display Modes
Old 11-14-2012, 10:00   #1
USMCsilver
Boat Life ©
 
USMCsilver's Avatar
 
Join Date: Oct 2001
Location: Middle of SC
Posts: 24,224
Send a message via AIM to USMCsilver Send a message via Yahoo to USMCsilver
A Scope Vs. Front Sight Assembly

I know that a scope will "see around" a front sight assembly, but I've never witnessed first hand how well this is achieved.

Is the field of view obstructed at all? If so, how bad is it?

I've been wanting a full rail over a low-profile gas block in order to avoid the FSP, but if I don't really need to get such an upper, then I may avoid it.

Opinions?

Thanks!

(And, of course, pictures are always welcomed!)
__________________
The Original USMCsilver©.

"Kiss my ass, I bought a boat! I'm goin' out to sea..." (Jimmy Buffett covering Lovett)
USMCsilver is offline   Reply With Quote
Old 11-14-2012, 10:10   #2
Denied
NRA Member
 
Denied's Avatar
 
Join Date: Dec 2004
Location: Ohio
Posts: 649
have a colt 6920, handle off, 3 to 9 scope mounted on rail, can see front sight at all at any power.
__________________
"Good judgment comes from experience, and a lot of that comes from bad judgment." --Will Rogers
Denied is offline   Reply With Quote
Old 11-14-2012, 10:10   #3
Matthew Courtney
CLM Number 285
Instructor #298
 
Matthew Courtney's Avatar
 
Join Date: Oct 2002
Location: Lake Charles
Posts: 5,986
Their is no distortion of the image.
__________________
You will never begin in the fight you have planned for. You will begin in the fight the other guy has planned for. Retreat in a manner that leads him into your fight should he press his attack.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
Matthew Courtney is offline   Reply With Quote
Old 11-14-2012, 10:12   #4
USMCsilver
Boat Life ©
 
USMCsilver's Avatar
 
Join Date: Oct 2001
Location: Middle of SC
Posts: 24,224
Send a message via AIM to USMCsilver Send a message via Yahoo to USMCsilver
Quote:
Originally Posted by Denied View Post
have a colt 6920, handle off, 3 to 9 scope mounted on rail, can see front sight at all at any power.
Is there supposed to be a "not" anywhere in the statement above?

Just wanting to clarify.
__________________
The Original USMCsilver©.

"Kiss my ass, I bought a boat! I'm goin' out to sea..." (Jimmy Buffett covering Lovett)
USMCsilver is offline   Reply With Quote
Old 11-14-2012, 10:45   #5
MrMurphy
Lifetime Membership
*********
 
MrMurphy's Avatar
 
Join Date: Jan 2001
Location: Buried in the X-files
Posts: 31,709
The focal range of a 3X or higher scope is 'in front' of the front sight assembly.

Depending on the scope, and this varies, you will either see nothing (common) or a very tiny blur you have to stare at to be sure is there.

At lower than 3X, you can still see the front sight at times, this varies per scope.

Having used everything from a 1.5-5X up to a 4.5-14X Nightforce with a front sight assembly..... you're fine.

If it's a 4X ACOG, anything 3-9X or higher, 99.95% likely you won't see crap except the target.
__________________
"And Shepherds we shall be. For thee, my Lord for thee. Power hath descended forth from thy hand, that our feet may swiftly carry out thy command. So we shall flow a river forth to thee and teeming with souls shall it ever be. In nomine Patris, et fili, et Spiritus Sancti. Amen."
MrMurphy is offline   Reply With Quote
Old 11-14-2012, 11:12   #6
Cole125
Silver Membership
Senior Member
 
Cole125's Avatar
 
Join Date: Apr 2008
Location: Far West, USA
Posts: 7,594
I've got a Burris AR-332 3x on my CMMG M4 LE with a fixed front sight. Looking through the scope all you notice is a little black blur in lower 1/3 of the picture. Not a big deal to me, does not obscure the target at all.

Black Rifle Forum

Last edited by Cole125; 11-14-2012 at 11:13..
Cole125 is offline   Reply With Quote
Old 11-14-2012, 11:28   #7
Travclem
Lifetime Membership
Badass Member
 
Travclem's Avatar
 
Join Date: Aug 2008
Location: Lubbock, TX
Posts: 6,745
With the Leupold Mark AR you can see the tiny black blur on 3-4 power, but it disappears at higher magnification. It is a non issue, even when visible.
__________________
Sent from a payphone in a whorehouse in Mexico.
__________________
Travclem is online now   Reply With Quote
Old 11-14-2012, 21:44   #8
ithaca_deerslayer
Senior Member
 
ithaca_deerslayer's Avatar
 
Join Date: Jul 2000
Location: Upstate NY, USA
Posts: 20,032
I just installed this Rock River 1 piece high mount and the scope this afternoon and got to try it out. There is absolutely no visible obstruction. Not at 3x, not at 9x. Not in bright light, and not at dusk. So I say it is not an issue at all. This mount puts the scope about the same place the carry handle sight would be. Leupold AR 3-9x40mm

Black Rifle Forum

Last edited by ithaca_deerslayer; 11-14-2012 at 21:47..
ithaca_deerslayer is offline   Reply With Quote
Old 11-14-2012, 21:46   #9
ithaca_deerslayer
Senior Member
 
ithaca_deerslayer's Avatar
 
Join Date: Jul 2000
Location: Upstate NY, USA
Posts: 20,032
Quote:
Originally Posted by Travclem View Post
With the Leupold Mark AR you can see the tiny black blur on 3-4 power, but it disappears at higher magnification. It is a non issue, even when visible.
I couldn't notice any blur at all. Mine is rifle length and has the high mount, so not sure if that explains the difference between us.

Even though it is called a high mount it seems pretty well aligned for me with that rear stock.

Last edited by ithaca_deerslayer; 11-14-2012 at 21:54..
ithaca_deerslayer is offline   Reply With Quote
Old 11-14-2012, 22:58   #10
Walt_NC
Senior Member
 
Walt_NC's Avatar
 
Join Date: Aug 2010
Posts: 346
I use a Leupold 2.5-8x36 Mk 4 MR/T M2 on my SPR. I regularly shoot with my Troy front BUIS up without any issues.
__________________
If, after I depart this vale, you ever remember me and have thought to please my ghost, forgive some sinner and wink your eye at some homely girl.
- H.L. Mencken
Walt_NC is offline   Reply With Quote
Old 11-15-2012, 05:46   #11
Travclem
Lifetime Membership
Badass Member
 
Travclem's Avatar
 
Join Date: Aug 2008
Location: Lubbock, TX
Posts: 6,745
Quote:
Originally Posted by ithaca_deerslayer View Post
I couldn't notice any blur at all. Mine is rifle length and has the high mount, so not sure if that explains the difference between us.

Even though it is called a high mount it seems pretty well aligned for me with that rear stock.
I have mine on a carbine and you can see it if you look for it.
__________________
Sent from a payphone in a whorehouse in Mexico.
__________________
Travclem is online now   Reply With Quote
Old 11-15-2012, 07:32   #12
Blade37db
Senior Member
 
Join Date: Jul 2005
Location: Connecticut
Posts: 188
I recently put a Nikkon P-223 3x32 on an 18 inch rifle length gas upper with A2 front sight and can see the blur in the bottom of the view. I was wondering if I moved the scope a bit forward would that eliminate seeing the front sight?
Blade37db is offline   Reply With Quote
Old 11-19-2012, 12:28   #13
USMCsilver
Boat Life ©
 
USMCsilver's Avatar
 
Join Date: Oct 2001
Location: Middle of SC
Posts: 24,224
Send a message via AIM to USMCsilver Send a message via Yahoo to USMCsilver
Well, I've concluded that I want a Trijicon Accupoint TR24 for the top of a 6920 upper. Gonna put that in, probably, the Burris mount.

I played w/ the Accupoint yesterday, and I think it is the best glass I've ever looked through. The clarity was absolutely amazing.

Anyway, thanks for all the help. Time to start saving up for the scope.
__________________
The Original USMCsilver©.

"Kiss my ass, I bought a boat! I'm goin' out to sea..." (Jimmy Buffett covering Lovett)
USMCsilver is offline   Reply With Quote
Old 11-19-2012, 12:58   #14
faawrenchbndr
CLM Number 281
DirtyThirty fan
 
faawrenchbndr's Avatar
 
Join Date: Nov 2005
Location: east of East St. Louis
Posts: 34,734
Those Trijicon scopes are amazing!
faawrenchbndr is online now   Reply With Quote
Old 11-20-2012, 20:11   #15
Kloogee
Senior Member
 
Join Date: Sep 2011
Posts: 367
I've got a Nikon M-223 3-12x42 on my DDM4V3. I know for sure that at the higher powers (which is what I always use), the front post completely disappears.

Last edited by Kloogee; 11-20-2012 at 20:31..
Kloogee is offline   Reply With Quote
Old 12-05-2012, 12:22   #16
trigger45
G23
 
trigger45's Avatar
 
Join Date: Dec 1998
Location: Texas, USA
Posts: 821
Send a message via Yahoo to trigger45
Had a 2.5 x on a 10/22 I could see the front sight as well. never bothered me.
__________________
-trigger45 G1NINERS #1923 niners #1923 .40S&W club #1923
G17,G19,G23,Browning Buckmark,
trigger45 is offline   Reply With Quote
Old 12-05-2012, 18:58   #17
Patriot328
B756
 
Patriot328's Avatar
 
Join Date: Nov 2001
Location: Alpha Brave Echo
Posts: 392
Send a message via AIM to Patriot328
I took this through a 4 power ACOG. It's on an normal fixed front sighted 16" upper.

Black Rifle Forum

Black Rifle Forum

The picture is 100% representative of the actual view. First, the doughnut is larger and if you look closely through the sight you can *faintly* see something in the lower part of the field of view. It, however, does not affect the use of the scope in the least.





I will say that if you look closely
__________________
Patriot328



To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
Patriot328 is offline   Reply With Quote

 
  
Reply

Thread Tools
Display Modes

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 -6. The time now is 19:22.




Homepage
FAQ
Forums
Calendar
Advertise
Gallery
GT Wiki
GT Blogs
Social Groups
Classifieds


Users Currently Online: 1,134
365 Members
769 Guests

Most users ever online: 2,672
Aug 11, 2014 at 2:31