Field Notes

A reflex red dot sight beside a holographic sight on dark slate
Red Dot vs Holographic Sight: How to Choose
Both are fast, both are parallax-friendly, but they create the reticle in completely different ways — and that drives battery life, reticle choice and how the dot looks to your... Read more...
A pistol red dot optic with mounting adapter plates and screws
Pistol Red Dots and Optic Footprints, Explained
The hardest part of a pistol optic isn't the optic — it's making the footprint, slide cut and plate all agree. Here's how the common footprints line up. Read more...
A flip-to-side magnifier and a red dot sight on a rail section
Do You Need a Magnifier for Your Red Dot?
A magnifier turns a fast red dot into a mid-range optic on demand. Here's when it's the right call, and when an LPVO is the smarter buy. Read more...
Two reflex sights, one with a green reticle and one with a red reticle
Green Dot vs Red Dot Sights: Which Reticle Color?
The color of your dot changes how it looks in bright light and to your eyes. Here's when a green dot is worth it — and when red still wins. Read more...
A red dot, an LPVO scope and a magnifier arranged together
The Best Optic for an AR-15: Dot, LPVO or Magnifier?
There's no single best AR-15 optic — there's the right one for your distances. Here's how red dots, LPVOs and magnifiers stack up. Read more...
A red dot sight co-witnessed with flip-up iron sights on a rail
Co-Witnessing Iron Sights with a Red Dot
Absolute or lower 1/3 co-witness? It comes down to mount height and how much clean window you want. Here's the difference. Read more...
An enclosed-emitter and an open-emitter pistol red dot side by side
Enclosed vs Open Emitter Red Dots: Which Is Better?
Open emitters are lighter and smaller; enclosed emitters are sealed against the stuff that blocks a dot. Here's how to choose. Read more...
Several compact reflex red dot sights arranged in a row
SIG Sauer ROMEO Red Dot Lineup Explained
SIG's ROMEO family spans pistol micros to tube-style rifle dots. Here's how the lineup breaks down so you can match one to your gun. Read more...
A prism scope, a red dot and an LPVO arranged together
Prism Scope vs Red Dot vs LPVO: How to Choose
A prism scope sits between a red dot and an LPVO. Here's what it does better, what it gives up, and who should choose each. Read more...
A red dot sight on a rail in a dim low-light scene
The Best Home-Defense Optic Setup
Under stress you want simple and reliable. Here's the optic-and-light setup that makes a home-defense gun easy to run in the dark. Read more...
From the Journal

Field Notes

Product guides, equipment care and buyer education from the D&R team.

Buyer's Guides

Red Dot vs Holographic Sight: How to Choose

Both are fast, both are parallax-friendly, but they create the reticle in completely different ways — and that drives battery life, reticle choice and...

Read Article

How-To Guides

Co-Witnessing Iron Sights with a Red Dot

Absolute or lower 1/3 co-witness? It comes down to mount height and how much clean window you want. Here's the difference.

Read Article

Buyer's Guides

SIG Sauer ROMEO Red Dot Lineup Explained

SIG's ROMEO family spans pistol micros to tube-style rifle dots. Here's how the lineup breaks down so you can match one to your gun.

Read Article

Buyer's Guides

The Best Home-Defense Optic Setup

Under stress you want simple and reliable. Here's the optic-and-light setup that makes a home-defense gun easy to run in the dark.

Read Article
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