Model: GB140A
.750 Bore Diameter
Clamp type, High Picatinny Rail Height 1.215", Aluminum
Designed for the "Flat Top" rail system to Colt standards
#8 Socket Screws
Aluminum Black Hard-Coat Finish

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).