The Primary Arms SLx MicroPrism sight represents a good balance between the magnification of a rifle scope and the visibility of a red dot.

Primary Arms was founded by Marshall Lerner over a decade ago, the result of a challenge that he provide an alternative to the counterfeit red dot sights proliferating at the time. Remember, this was long before there was such an extensive collection of optics available.
Here are some of the articles we’ve written about ’em.
P.A.: It’s Primary Optics, Primarily!
Primary Arms Optics | SLx Gen III Prism Scopes with ACSS Reticles
Thanks to their long-standing partnership with designer Dimitri Mikroulis (the “genius behind the patented ACSS reticle,” as they describe him), P.A. has established a remarkable reputation for quality optics.
Originally headquartered in the back storeroom of a barbershop, they’re now located in a 50,000 square foot facility in Houston, Texas.
⇑ Above: the Athena Reticle.
⇓ Below: the ACSS Hera BPR MOA grid.
⇑ Athena-BPR mil reticle.
Read an interview with founder Marshall Lerner here; learn more about Dimitri Mikroulis here.
…
Scroll down to read articles.
The Primary Arms SLx MicroPrism sight represents a good balance between the magnification of a rifle scope and the visibility of a red dot.
The SPR AR 15 is a special purpose rifle built as a homage to the Mk 12.
An offset red dot optic (aka “canted red dot”) provides an excellent way to obtain both precision and speed with your long gun.
There are a plethora of AR15 accessories to build your perfect rifle. One of those is the two stage trigger (2 stage trigger).
Here’s a quick list of optimal barrel length and twist rate configurations to help explore potential use cases, accuracy potential, and component selection.
I did some miles with the Alexo Concealed Carry Leggings and felt very confident carrying with them. Ladies, go grab a pair!
Primary Arms has just released the SLx GEN III Prism Scope to their optic lineup, which includes a Primary Arms ACSS Aurora Reticle option. Check it out!
Primary Arms keeps rolling out new optics one after another. The latest options are the SLx MD-25 red dot sight and the GLx rifle scopes. Take a look!
Who doesn’t love prism sights? Primary Arms is releasing 6 new optics in the GLx and SLx line of optics. Give ’em a look.
Primary Arms is headquartered in Houston, Texas, giving them the same home town as Billy Gibbons, Dusty Hill, Frank Beard, and of course Chris Hernandez. This automatically bumps them up a couple of links on the food chain (at least how we reckon things).