Sentry 6 Family of Products from SLR on Sale — Gun Parts and More! — 3 products / 6 models — Page 1

The Sentry series of Gas Blocks is SLR's bread and butter, and the Sentry 6 is no exception. These gas blocks by SLR feature a 15-position adjustability that lets you control how much gas you let through using only a single tool click. This means you can fine tune your block until you get minimal recoil while still able to reset the bolt after each shot. The Sentry 6 SLR Gas Blocks allow for dependable repeatability and reliability every time. The best place to purchase these blocks is with the firearm experts at OpticsPlanet.com. Why? Because we have a talented team of product experts on deck waiting to help you, the best deals anywhere on the market and a free shipping policy on all orders over $49.