Extra-long, oversize release button features 40 lpi checkering for positive grip and increased length for faster, easier mag changes with little or no change in grip. Long wearing, heat-treated, pre-drilled, hardened magazine catch comes already tapped and ready-to-install. Does not include catch lock and spring.
SPECS: Available in Blue catch and button or Stainless Steel (SS). Button: 3⁄8" (9.5mm) O.D., 3⁄16" (4.7mm) thick, 4-40 thread.
Catalog page 90, 109