One of the things at SHOT that I think will be of interest to a lot of 3 Gun shooters is the new modular receiver system that Lancer has released, the L15. It uses a pin and slot system so you can swap out mag wells on your rifle.
Swapping magazine wells with this system is just a matter of knocking out one pin, sliding the current mag well off, and replacing it with the one you want to use.
The other cool thing that Lancer had on display, and one that a lot of 3 Gun shooters will be interested in is their Quickmag system. While it looks like products that are already on the market that allow you to carry an additional magazine on the gun, the Quickmag is designed in such a way that when you press the button to release the spare magazine, it also activates the magazine release on your rifle. Basically, with the push of a single button, you can dump your empty and release a fresh magazine. It was extremely easy to use this product to execute a rifle reload in a second or less. It was cool enough that it’s the one product I actually shot video of:
The Quickmag design is still being refined, and they’re hoping to release it later this year.