Shadow Systems DR920 Foundation 9mm Semi-automatic Pistol Everything you need. Nothing you don't. The Foundation Series by Shadow Systems was designed for shooters who aren't fussy about aesthetics and want only the essential features. Built on the same frame as every other DR920 model, the DR920 Foundation touts sleek ergonomics, real-world shootability, and bet-your-life reliability for significantly less than you'd expect. The DR920 Foundation is built around Shadow Systems' own Duty-Role Frame, designed to provide dramatically reduced recoil and muzzle flip. The frame makes use of new manufacturing techniques to wrap more texture around the curves of the grip-so it sticks to your hand for enhanced control. And like the more expensive DR920s, the DR920 Foundation also works with aftermarket Glock 17 holsters, magazines and accessories. The slide has pocket-cut serrations to reduce weight and enhance controllability, and features the same optics mounting technology (more on that below) you'll find on more expensive Shadow Systems models. The mounting system allows direct mounting of many popular red dots without using a plate. The DR920 Foundation features a match-grade 4.5 inch barrel with smooth finish and conventional rifling, so it's compatible with lead bullets. The drop-safe polymer trigger features a 4.5-5 lb. trigger pull and crisp, tactile reset. Bottom line: the DR920 Foundation delivers the superb ergonomics, unmatched reliability, and superior performance you want-at a price that's much easier to stomach. It's not as feature-loaded as other Shadow Systems pistols, but it blows away every other handgun in its price range. More on the optics mounting system The new optics mounting system is among the best we've ever seen, and was the result of considerable effort. By redesigning internal slide components, Shadow Systems was able to relocate portions of the operating system to allow: