Seekins Precision Select Adjustable Gas Block .875" Steel Black Melonite

The Seekins Precision Select Adjustable Gas Block is a low-profile, .875"-diameter gas block designed to give AR-pattern rifles a broad, repeatable range of adjustment for cycling. Machined from steel and finished in a rugged black melonite coating, the Select is built to handle hard use while resisting corrosion and wear under the handguard.

What sets the Select apart is its set-it-and-forget-it adjustment: once you dial in your preferred gas setting for a given ammo load or suppressor, the block holds that initial position so you can make fine on-the-fly tweaks without losing your baseline. That makes it a strong match for shooters who run a dedicated suppressor, swap between multiple cans, or simply want to tame excess gas for smoother recoil and more reliable cycling with a variety of ammunition.

The .875" outside diameter is the common standard for many AR-15 barrel gas-block journals, and the low-profile design tucks neatly inside standard and many free-float handguards. The steel body and melonite finish keep the package slim and durable, so it drops into most carbine-, mid-, and rifle-length gas system builds without clearance headaches.