Model: GB220L .936 Bore Diameter Low Picatinny Rail 1.040" Height Aircraft Aluminum Clamp Type, #10 Socket Screws Bull Barrel Hard-Coat Black Anodize All of SADLAK’s Gas Blocks are made in the USA by craftsmen with years of experience delivering consistent quality. All the bores are precision honed and all critical measurements are 100% inspected to insure consistancy and quality.

! Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).