V Seven 17-4 Stainless Gas Block

V Seven Weapon Systems builds parts for shooters chasing weight, and its gas blocks reflect that focus. The 17-4 stainless .750 block is a clean two-screw fixed design that resists heat and corrosion better than commodity steel while staying light, a sensible match for the lightweight uppers V Seven is known for. Stainless construction also means the bare and black-finished versions weather range heat without the finish degrading the way phosphate can.

For builders pushing weight harder, V Seven offers titanium micro variants in .625 with both set-screw and pin-on mounting, though those carry a steep premium over the stainless block. The .750 17-4 stainless is the standard AR-15 journal size and the everyday pick: stainless durability, two-screw simplicity, and a price that sits between commodity blocks and the Geissele Super Gas Block. As a fixed block it does not meter gas.

Choose the V Seven stainless block for a lightweight or premium build where stainless is preferred over coated steel, and step to the titanium micro variants only when shaving every fraction of an ounce justifies the cost. Suppressed hosts still need a restricting tube or heavier buffer.