So this entire This is certainly plastic, the hinges are plastic pins, there are 3 distinct dimension allen screws which tactically can be a Terrible design, the unit bends for the brace so taking pictures has a slight bounce result if you are doing the motions of reloading or rackin. https://recover202020842.bloginwi.com/60484372/glock-stabilizer-can-be-fun-for-anyone