The P415 was engineered to be virtually unstoppable in unfavorable conditions. It is a product of continuous development and improvement to the AR platform that no other rifle company has attempted. The reliability has been tested time after time, and the operating system perfected. E2 Extraction Technology, complete ambidextrous fire controls, modular free floating rail platform, and numerous internal improvements make it the pinnacle of firearms. For the P415 Edge Pistol, we've cut the bulk. To minimize weight and maximize shooter comfort, POF-USA redesigned the MMR handguard. As a result, the size was reduced by nearly 20% from our original MRR rail, making the width a mere 1.75 inches. Not only does this drop the weight down to 6.5 lbs, it provides even better ergonomics to the shooter. The P415 Pistol simply will not fail when you need it most. This is a Piston Driven Firearm.