The Aero Precision low-profile .936 gas block is a no-frills, precision-machined component built for AR-15 and AR-308 platforms running .936-inch outer-diameter barrels. If you're building or upgrading a rifle and need a proven, American-made gas block that won't fight you during installation, this is a solid choice. The low-profile design keeps things tight and clean on the barrel, and the black nitride finish stands up to corrosion and hard use without looking tacky.

Aero Precision machines these blocks from 4150 hardened steel—the same material you'll find in quality barrel stocks—then applies a durable black nitride coating. That's a practical finish that serves hunters, competition shooters, and builders equally well. The block ships ready to install with steel set screws (10-32 x 3/16, knurled cup point) that seat into the barrel via the included screw holes. One detail worth noting: Aero recommends against using red thread locker on the set screws; if you do lock them in, stick with non-permanent varieties.

This is a workhorse part for anyone finishing an upper receiver or swapping out a worn gas block. It's not flashy, it's not oversized, and it doesn't need to be—it does the job reliably on standard-diameter barrels. Made in the USA, it carries the Aero Precision name you'll recognize throughout the AR platform ecosystem.

The Aero Precision low-profile .936 gas block is a no-frills, precision-machined component built for AR-15 and AR-308 platforms running .936-inch outer-diameter barrels. If you're building or upgrading a rifle and need a proven, American-made gas block that won't fight you during installation, this is a solid choice. The low-profile design keeps things tight and clean on the barrel, and the black nitride finish stands up to corrosion and hard use without looking tacky.

Aero Precision machines these blocks from 4150 hardened steel—the same material you'll find in quality barrel stocks—then applies a durable black nitride coating. That's a practical finish that serves hunters, competition shooters, and builders equally well. The block ships ready to install with steel set screws (10-32 x 3/16, knurled cup point) that seat into the barrel via the included screw holes. One detail worth noting: Aero recommends against using red thread locker on the set screws; if you do lock them in, stick with non-permanent varieties.

This is a workhorse part for anyone finishing an upper receiver or swapping out a worn gas block. It's not flashy, it's not oversized, and it doesn't need to be—it does the job reliably on standard-diameter barrels. Made in the USA, it carries the Aero Precision name you'll recognize throughout the AR platform ecosystem.