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Location of the elevation adjustment screw
- The LPA cut is often confused with the Bomar rear sight cut as both are some of the most common adjustable rear sights on 1911s. The easiest way to tell the difference is the location of the elevation adjustment screw. On LPA rear sights, the elevation screw is located in the center of the dovetail.
egwguns.com/blog/2021/09/24/1911-rear-sight-cuts/
People also ask
How do I tell the difference between LPA & Bomar sight cuts?
What is the difference between Bomar cut and LPA cut?
What's the difference between LPA & Bomar?
What is a Bomar sight cut?
What is the difference between BoMar & LPA dovetail cut?
Where is the elevation screw located on a Bomar sight cut?
Nov 28, 2016 · Yes, the sight pictures are the same.... however, the machining of the slide for the two different types of Bomar-like sights are different. The LPA does not require an additional hole be drilled and tapped like the BCMS does.
- Novak
- G.I.
- Elliason
- LPA
- Bomar
- Proprietary Sight Cuts
- Summary
The Novak 1911 dovetail cut is the most common cut found on 1911 pistols. This cut is currently being used by many manufacturers like Rock Island Armory, Remington, Ithaca, Jacob Grey Custom, Stealth Arms, Colt, and more. Unfortunately, not every Novak style set will share the exact same tolerances due to some manufacturers using imitations of the ...
The G.I. is the smallest of the 1911 sight cuts and is found on G.I. style handguns like the Springfield 1911A1, Iver Johnson 1911A1, and more.
The Elliason rear sight cut is not very common but can be found on older Colt Gold Cup 1911’s. Newer Gold Cup 1911’s come with the Bomar sight cut.
The LPA sight cut uses an adjustable rear sight with an elevation adjustment screw located in the center of the dovetail. This style is very common. If your 1911 uses an adjustable rear sight, it’s likely it uses LPA sights. Some common 1911’s with this cut are the SpringfieldRange Officer, STI with adjustable rear sights, Springfield Loaded Target...
The Bomar sight cut is very similar to LPA and is also an adjustable rear sight. However, the elevation adjustment screw is located slightly behind the dovetail cut as opposed to being centered like LPA sights. Bomar sights are less common than LPA sights but can be found on 1911’s like the Colt Gold Cup National Match .45 ACP, Springfield TRP Oper...
Several firearm manufacturers use their own style of sight cuts that are designed specifically for their firearms. For example, SIG SAUER uses a proprietary cut for their P220 Hunter and Supermatch SAO. Smith and Wesson also use proprietary rear sight cuts for their adjustable and fixed rear sights. Kimber1911 fixed rear sights are proprietary as w...
Understanding what dovetail cut your 1911 model pistol has is the first step to selecting a sight set for your 1911. If you are still unsure, reach out to the manufacturer of your firearm directly or contact a sight manufacturer for more information. Installing your sight set may require modification as there are some variations between manufacture...
- Ethan L
Sep 24, 2021 · The easiest way to tell the difference is the location of the elevation adjustment screw. On LPA rear sights, the elevation screw is located in the center of the dovetail. On Bomar sight cuts, the elevation screw is located slightly behind the dovetail.
Jul 20, 2024 · I guess the little bit off on the front sight right and the rear being that left of center makes it go way left. I think taking the rear blade all the way right should put it in the black. Not ideal but I will keep searching. I have to figure out if the sight cuts are square.
The easiest way to differentiate between the two cuts is by looking at the location of the elevation screw. The Bomar cut has the elevation screw located behind the dovetail cut. The LPA cut has the elevation screw located in the center of the dovetail.
Notice the Bo-mar and LPA/TRT are very close in initial appearance but there are a few key differences that will help in determining the correct option. First the Bo-mar cut will have a threaded hole drilled into the slide whereas the LPA/TRT does not.
Jan 18, 2023 · Springfield uses both Bomar and LPA. That looks like a Bomar. See the differences here: Common 1911 Sight Dovetails (kensight.com) Some Bomars have a "pocket" in the rear, some have an open area like yours.
