Aero Precision .875 Low Pro Gas Block – Aero Logo – Nitride
Precision gas control for big bore builds—reliable, low-profile, and made in the USA.
The Aero Precision .875 Low Profile Gas Block is designed to deliver consistent gas flow and reliable performance on AR-15 and AR-308 builds with larger barrel profiles. Machined from 4140 hardened steel and finished with a durable nitride coating, this gas block ensures corrosion resistance and long-term durability under high heat and stress.
With a slim, low-profile design, it fits cleanly under most free-float handguards, making it ideal for modern builds where space and weight savings matter. Dual set screws provide secure mounting on barrels with a .875″ outer diameter, while the engraved Aero “A” logo ensures you’re running trusted, American-made quality.
Note: Roll pin not included. For best results, Aero recommends avoiding the red thread locker and using only a non-permanent thread locker on the set screws.
Features
- Fits barrels with .875” outer diameter
- 4140 hardened steel construction
- Black nitride finish for wear and corrosion resistance
- Low-profile design fits under most free-float handguards
- Includes two 10-32 x 3/16 knurled cup point set screws
- Made in the USA







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