In 2014 Sig Sauer introduced its first striker fired handgun into the market. Enter the Sig 320, a modular design, it boasts the ability to swap grip modules to different sizes allowing it to be fit to the users hands. The Sig 320RX full size 9mm is also unique in that with a simple swap of the fire control unit you can swap calibers or even sizes from full size to a subcompact. This Sig Sauer 320RX full size comes with 4.7" barrel and 2-17rd magazines. The Sig 320 full size comes with 3 dot night sights for clear sight picture. The trigger on the Sig 320RX full size 9mm is one of the best out of the box triggers on the market with a clean break and short reset for fast follow up shots. Like all 320s it has a 5-point safety system including a striker safety, 3-point takedown safety sytem, inability to dissasemble without first removeing the magazine, the system prohibits takedown  without slide being locked to the rear, and lastly the takedown lever allows dissasembly without use of tools or trigger manipulation. The Sig 320RX comes with the slide milled for a micro red dot sight and has a Sig Romeo electronic red dot sight installed and sighted in. Red dot sights on pistols can increase speed of hits on target and target transitions, they can also be easier to see for those with sight problems that have a hard time lining up iron sights.