This is a discussion on Front Sight Theory within the The M14 forums, part of the M14 M1A Forum category; The NM front sight is thinner than the standard by some amount, but the tip is still a rectangular block. Why does no one seem ...
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|May 14th, 2020, 12:02 PM||#1|
Join Date: Feb 2019
Location: Hillsboro, OR
Front Sight Theory
The NM front sight is thinner than the standard by some amount, but the tip is still a rectangular block. Why does no one seem to file/shape the front sight to a narrower point? Wouldn't that be even better?
Got bored and drew it up in CAD (it's CAD for printed circuit boards, so it's a little rudimentary compared to SolidWorks...)
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|May 14th, 2020, 12:58 PM||#4|
Join Date: Dec 2008
Location: Central Ohio
May God bless,
|May 14th, 2020, 01:31 PM||#5|
Join Date: Feb 2006
Location: Deplorable area of CA
Using 26.75 inches sight radius (info gleaned from this forum) an M14 front sight whose width matched the 6MOA of NRA/CMP targets would be .047 inches.
A .062 inch wide front sight is about 8MOA, slightly wider than the target black.
|May 14th, 2020, 01:36 PM||#6|
Join Date: Jul 2015
The wider sight is perfect for the black target width. I can’t shoot my M1917 very well yet due to the very tiny front sight. I would probably do terrible with an M1A pointed sight.
Worth a try though, would love for someone to post some results. I’d file down an SAI sight, but not a GI.
|May 14th, 2020, 04:05 PM||#8|
Dodgin' The Reaper
Join Date: May 2004
Location: Jacksonville, OR
The back of the blade on the NM front sight is squared and rectangular as noted. This is meant to give the operator a crisp sight picture. The blade tappers to the front so the sight picture won't show the sides of the blade when adjusted for wind. That would result in a false sight picture and screw up the sight adjustments. Some shooters prefer the standard wider blade at shorter ranges. The reason is that the narrow blade tends to follow the curve of the bulls eye when favoring left or right in changing wind conditions. It causes shots to impact high. Most shooters don't have that problem and get along with the narrow blade just fine. Shooters who use a frame hold for 600 yard and longer ranges sometimes prefer the wide blade.
|May 14th, 2020, 05:53 PM||#11|
Join Date: Jul 2004
Location: Jupiter FL
|May 14th, 2020, 08:27 PM||#13|
Join Date: May 2004
Location: Covington/Kent, Wa.
|May 14th, 2020, 08:29 PM||#14|
Join Date: Mar 2010
it is very difficult(read impossible) to get the black bull to sit right in the tip of a pointed front sight. you end up sticking the point into the bull. the square front sight allows you to place the bull right on top of the sight. hold too high and you no longer have a circle resting on the sight. Hold too low and you see a gap between the sight and bull.
Better is a aperture front sight where you eye puts the bull in the center of the front sight and centers the front sight inside the rear peep sight. But that puts you in the match rifle class.
I actually made a front sight for my M1A where i epoxied(JB weld so it was really solid(:>) an aperture ring to the the back of the front sight blade. Worked really well for old eyes.