Welcome to Primary & Secondary

Pro Guns, Gear, Tactics, Training, & Discussion

Ideas & Concepts,

Autopsy Of A Rifle: DPMS Oracle 5.56mm

Part 1: Overview This is a factory new DPMS Oracle. And, it's the first rifle featured in our "Autopsy" series. This rifle was unboxed and fired for function. 60 rounds of M193 were fired to test for any obvious issues which would eliminate it as a candidate for this series.


AAR: DARC Tactical Urban Sustainment Course (TUSC)

Multiple vehicle drill, contact left and front vehicle is disabled. Moving to the shoot house. AAR: DARC Tactical Urban Sustainment Course (TUSC) 4-7, 20 SEP 2015 By: John D. Remf What this AAR isn't: A complete breakdown of the TTP's and minutia taught in the class. There are reasons for this.


DIY isn’t always the best option…

  A great example of how poorly understood this platform really is.  This hack job was done by a professional gunsmith. What started out as a solid CHF Centurion 16" carbine barrel...is now an example we will use in an Armorers course. A customer had a 16" barrel with carbine


What is quality?

  What is quality? According to the American Society of Quality, quality is - 1. the characteristics of a product or service that bear on its ability to satisfy stated or implied needs; 2. a product or service free of deficiencies in“fitness for use;” or in a “conformance to requirements.”


Tactical, cold, wind, rain, survive.

Here are some things to consider regarding layering and desolate areas. The land of many mountains, high desert and high winds can make for a challenging way to manage your body heat while working with tacti-cool gear. The critical issue is to maintain a balance of body core temperature and


Police and the minimum requirement

I have always been a firearms enthusiast. I was surprised I wasn’t surrounded by like minded people when I went through the police academy. It wasn’t until I took further training beyond what is provided in law enforcement did I start seeing a bigger picture beyond just firearms. I learned


The Red Dot Field Of View.

With magnified optics a larger field of view is absolutely desirable. Even shooting with both eyes open that larger field of view (FOV) lets you see more through that magnified window. Sometimes with red dot sights (RDS) we shift all of our focus to our dominant eye, a larger window


Accuracy 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 accuracy; accurate with each shot. This all starts with us the shooter. We need a good foundation of the basics to be


Light and the Inverse Square Law

By Michael Johnson So I've debated posting this for a while because I'm not a firearms expert (not even close), but I wanted to share some knowledge that I do have that I don't think most people understand. I work as a photographer and thus my expertise is in light


Slings – a very general overview

In regards to slings, there are those with experience that know the way things work and there are those without experience that make decisions based on peer pressure or appearances. Slings are to a carbine as holsters are to a handgun. Slings are a needed piece of equipment. There are