The SPR AR 15 is a special purpose rifle built as a homage to the Mk 12.
SPR AR 15: a Mk12-ish Special Purpose Rifle Build
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TagPrimary Arms
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
Primary Arms
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.
Scroll down for more about Primary Arms.
⇑ 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.
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Scroll down to read articles.
Canted Sights: The Offset Red Dot
An offset red dot optic (aka “canted red dot”) provides an excellent way to obtain both precision and speed with your long gun.
Own The Distance: Primary Arms SLx MicroPrism Sight
The Primary Arms SLx MicroPrism sight represents a good balance between the magnification of a rifle scope and the visibility of a red dot.
What is a Two Stage Trigger? 2 Stage AR15 Triggers Explained
There are a plethora of AR15 accessories to build your perfect rifle. One of those is the two stage trigger (2 stage trigger).
Barrel Twist Rate and Barrel Length
Here’s a quick list of optimal barrel length and twist rate configurations to help explore potential use cases, accuracy potential, and component selection.
Back the Bang:
This is a great place to compare prices and see what’s in stock.
Alexo Athletica Concealed Carry Leggings
I did some miles with the Alexo Concealed Carry Leggings and felt very confident carrying with them. Ladies, go grab a pair!
Primary Arms Optics | SLx Gen III Prism Scopes with ACSS Reticles
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 New Optics Options— RDS & Scope
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!
Primary Arms Unleashes Half a Dozen New Prism Sights
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: it’s Primary Optics, Primarily!
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).
Find what’s in stock, and where, and compare prices.
⚠️ Some hyperlinks in this article may contain affiliate links. If you use them to make a purchase, we will receive a small commission at no additional cost to you. It’s just one way to Back the Bang. #backthebang
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