Primary & Secondary Article Library
Explore the Primary & Secondary Article Library: practical writing on firearms, defensive training, law enforcement, equipment, tactics, mindset, and the people who contribute to the professional training community. Articles are organized to help readers find durable information, professional perspectives, and useful resources by subject.
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SOLGW: The Final Thoughts Part 1
So……about 6 months ago P&S was contacted by Michael Mihalski, who owns Sons of Liberty Gun Works, about reviewing one of his turnkey rifles, cause unlike most manufacturers,…
Read articleThe Sig Sauer P320 RX Review
Editor’s Update: September 2026 Historical context: This review documents a 2016 P320 RX package and an early-production Romeo1 test optic. Its pricing, configuration, and product comparisons reflect that…
Read articleSOLGW Carbine Final Assessment With Matt Shockey
Matt Shockey provides his final assessment of the Sons of Liberty Gun Works carbine evaluated for Primary & Secondary, with context for interpreting a long-term rifle review.
Read articleLow Ready / High Ready Again
I recently read an article that was espousing the benefits of high ready over low ready. Within the article the author stated that one explanation for high ready…
Read articleUS Army TC 3-22.9 Rifle and Carbine – Stability
Greetings all. Since this is my first blog for Primary & Secondary, let me take a second to let you know that if you are reading this you are…
Read articleThe Varying Quality of the AR15 and Why. Part 1
By Will Larson, Owner: Semper Paratus Arms Over the course of the last few years and most recently in the last four years since I started teaching an AR-15…
Read articleMagpul PMAG Gen M3
Magazine Design Philosophy, Testing, and Performance of Magpul Industries PMAG Magazines for the AR/M4/M16/HK416/M249 By Duane Liptak, Director of Product Management and Marketing, Magpul Industries. Director of Magpul…
Read articleEmerson Knives: A Critical Look
Emerson Knives Inc. and the custom knives of Ernest Emerson enjoy a strong reputation in professional circles. Emerson folding knives in particular are considered by many to be…
Read articleWhat “Mil-Spec” Really Means for an AR-15
Understand what mil-spec does and does not mean for a commercial AR-15, and how to evaluate materials, assembly, testing, configuration, and quality control.
Read articleAAR: FOLLOW THROUGH CONSULTING – SCOPED CARBINE (Part Four: Day Three/Conclusion)
Follow Through Consulting Scoped Carbine Class Teasdale, UT March 18 – 20, 2016 By: Seth Young Continued from Part 3: Day Two. Training Day 3 – Sunday After…
Read articleAAR: FOLLOW THROUGH CONSULTING – SCOPED CARBINE (Part Three: Day Two)
Follow Through Consulting Scoped Carbine Class Teasdale, UT March 18 – 20, 2016 By: Seth Young Continued from Part 2: Day One. Training Day 2 – Saturday We…
Read articleAAR: Follow Through Consulting – Scoped Carbine (Part Two: Day One)
Follow Through Consulting Scoped Carbine Class Teasdale, UT March 18 – 20, 2016 By: Seth Young Continued from Part One: Part One. Training Day 1 – Friday In…
Read articleAAR: Follow Through Consulting – Scoped Carbine (Part One: Introduction)
Follow Through Consulting Scoped Carbine Class Teasdale, UT March 18 – 20, 2016 By: Seth Young Introduction One of my favorite weekend activities is hiking up into the…
Read articleM-LOK vs. KeyMod: Why One Standard Prevailed
A practical look at the M-LOK and KeyMod accessory-mounting standards, why M-LOK gained momentum, and what matters when evaluating an installed system.
Read articleEOTech Performance Issues: 2016 Document Archive
A historical archive of 2016 EOTech performance documents, with context from the 2015 federal settlement concerning thermal drift, cold-weather distortion, and moisture intrusion.
Read articleOGW: SHOT Show 2016 Rifle Package Raffle
Operation Grace White‘s rifle is all finished, assembled and ready for the trip to SHOT! Many thanks to the good folks over at Leupold Optics, Hill People Gear,…
Read articleWhy I Have A Red Dot On My Pistol – Part 2
After receiving a lot of great feedback regarding my first offering, I decided to write a follow up article based on the questions I received. Again, I want…
Read articleWhy I Have A Red Dot On My Pistol – Part 1
Red Dot Sights (RDS) are possibly the single biggest innovation on the pistol platform in recent years. But just like any “new” thing, it has its evangelists and…
Read article“Just as Good”: Diagnosing an Unreliable AR-15
An unreliable AR-15 demonstrates how extractor tension, carrier velocity, buffer construction, component quality, and stacked deficiencies can produce repeated cycling failures.
Read articleDPMS Oracle 5.56 Rifle Autopsy: An Armorer’s Inspection
A detailed armorer inspection of one factory-new DPMS Oracle 5.56 rifle, covering receiver assembly, staking, fasteners, bolt-carrier components, gas-system choices, materials, dimensions, and torque observations.
Read articleWhy DIY AR-15 Gunsmithing Can Go Wrong
A failed barrel modification shows why AR-15 reliability depends on the complete operating system—and why diagnosis, proper tooling, inspection, and testing must precede irreversible work.
Read articleAccuracy and Optics Placement
Accuracy by volume is a great concept; however time is working against you with that process. In order for us to be efficient little gunfighters we need true…
Read articleWeapons For Home Defense
The ability to protect ourselves and our loved ones at home is of paramount importance. With this in mind it is best to understand the options available to…
Read articleTruck Guns: Practical Considerations and Risks
A vehicle-stored firearm requires a defined purpose, secure storage, lawful access, proven reliability, regular inspection, relevant training, and realistic expectations.
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