Redfield Aluminum Base Pairs were made with an eye to quality, guaranteed to deliver a strong, sturdy hold, no matter what type of firearm you choose. This pair includes a front and a rear base, so you can customize your weapon as you see fit. Not only are these aluminum base pairs versatile and easy to use, but they are built strong to stand the test of time. Machined from aircraft-grade aluminum, Redfield Aluminum Base Pairs are lightweight but incredibly durable. Additionally, these base pairs feature a cross-lock design that ensures a secure fit for your scope.