Palmetto State Armory are the Mad Scientists of gun makers, coming out with new designs and recreations of guns. This year they brought out over a dozen prototypes including their MP7-a-like named the X5.7 (which may not be the final name). This PDW is based on their Rock pistol they debuted 3 years ago at SHOT. With a polymer housing, and retractable brace, at first glance it could be mistaken for a mini HK MP7.
PSA has too many ideas and but too little engineering time so they’re asking fans to vote for their favorite prototype guns that PSA should focus on. This means the 3 guns with the highest votes will be most likely to see testing and production later this year. Cast your vote at https://palmettostatearmory.com/
