This 625 low profile gas blocks, along with our gas tubes, create an efficient and reliable gas system for your AR15 or AR 308 rifle build.
- Fits barrels with .625 Outer Diameter
- Constructed from 4140 hardened steel
- Nitride coating
- Low profile for easy fitment
- Set Screws are Steel 10-32 x 3/16 Knurled Cup Point
- Made in the USA
- *Roll pin not included*
Please note: Aero does not recommend the use of red thread locker on the threads of the set screws. If you decide to use thread locker we recommend using the non permanent variety.