DoubleStar AR-15 Picatinny Rail Gas Block .625" Barrels Aluminum Black Lightweight
Machined from 6061 T6 aluminum and incorporating a 1913 picatinny rail, DoubleStar's newest low profile gas blocks have a pleasing angular profile and an additional set screw on the top surface to insure a perfect gas seal. The blocks are hard coat anodized and are shipped with enough set screws to complete installation.
6061 T6 Aluminum
Top 1913 picatinny rail for accessories
For .625" lightweight AR-15 barrels