...Mr. Alan Brosnan describes this position this way: Position SUL, is not a classic "gun ready" position, but rather a "gun safety" position. It was primarily designed for the Brazilian officers as they poured Out of their SUVs on missions in the slums. Their muzzle control was atrocious, and since Max and I were in the SUVs, it did not take much brain power for us to create a solution to this evident problem -- be it right or wrong for many of the US instructors and critics. I think most of them thought it was a substitute for a classic "gun-ready" position and that is where the confusion came in.
The position has taken off among the law enforcement and military training community. After they understand the concept, it's hard for them to disagree with it, especially since it affects safety - predominately their own!
I teach the position because in any firearms class I teach we have a 360° “HOT” range. All too often trainers and students get marred down in the square range mentality, or the idea that threats only comes from in front of them. Now more than ever we need to train our officers, operators and students that threats come from 360°.
“SUL” is an alternative to the ready or low ready position, perhaps better suited to crowded environments. With correct technique, a weapon held in this position is less likely to violate Safety Rule #2 by pointing at people unintentionally.
The properly applied SUL also prevents the muzzle from pointing at the shooter’s feet and legs when scanning 360°....