The double action plus+ is a new concept to the American shooting community, though it is not truly new. The Korean military has been using this trigger system for decades with great reports of performance and skill. The pistol that ushered in this innovative trigger system is known as the K-5/DP-51. The pistol was first produced my Daewoo Precision in Korea. The pistol is heavily based off of the S&W 5906, to the point that the 5906 magazines are interchangeable with the K-5/DP-51. The trigger system has gone by many names in the past such as triple action and fast action, but has remained the same in what it does. The pistols though, have undergone plenty of minor changes, which is reflected in their current catalog on page 16. Now, since 2013, Lionheart Industries has been importing an upgraded version of the K-5 to the US with a few additional changes in design and in specific tolerances to increase interchangeability. Lionheart has labelled the trigger system on their LH9 series of pistols as being “Double Action Plus+”. This is the name I will be working with in this article.
A CHANGE IN CONCEPT
The double action has seen a lot of criticism in recent years for a long heavy pull that people had a hard time learning how to master. Half of the issue is propaganda that the double action is an antiquated system that has no use for the trained individual and that the inconsistent trigger pull characteristic causes inaccuracy. These claims are ludicrous at best and are merely propaganda to excuse the fact that the individuals do not understand the triggers they are using. There are few instructors these days that accurately teach courses on the double action, with the exception of people like Ernest Langdon, who is revered for becoming a champion of the trigger system. Sadly his kind is a dying breed and I hope people will realize the merits of this trigger system, because it truly is a jewel in performance. That being said, there are more shooters seeing the benefits of the double action with the growing amount of shooters recognizing the inherent ability to perform at a higher level with the double action. That said, those who are coming from the striker fired community are hesitant to try out the double action for one reason or another. The main reason I hear is that they have grievances against the heavy pull. They want a “consistent” pull on all shots, which makes little to no sense to anyone who has used a double action. They treat the DA/SA system like it is going to double action more times than just on the first round. This is not true of course, but it does not stop them from using it as an excuse, hoping they will say it enough to make the claim true. With the double action plus+, it eliminates the ability of these people to complain about consistency by immediately allowing the shooter to have the pistol in single action with only a little pressure put on the trigger.
David served in the USMC for a few years. Deployed twice and got wounded. Retired and moved to Alaska. Has a passion for reviewing and testing guns and gear of all kinds. Enjoys working to dispel myths and show that you can train and practice in a realistic, safe, and practical way.