The Centennial Defense Systems Stainless Steel Billet Locking Block upgrades your OEM part to a product that is CNC machined from solid billet 17-4 stainless steel and is heat treated to RC 44 providing an increase in durability and a more consistent, secure lock-up.
The Titanium Nitride (TiN) coated option helps to reduce wear by reducing surface friction and provides greater corrosion resistance.
Standard Size Fits Glock Models (3-Pin Post 2002): G17, 17L, 20, 20SF, 21, 21SF, 22, 24, 31, 34, 35
Compact Size Fits Glock Models (3-Pin Pre 2013): G19, 23, 32, 38
Sub-Compact Fits Glock Models: Gen 3-5 G26, 27, 33, 39
Gen 4-5 Fits Glock Models: Gen 4-5 G17, 19, 22, 23, 32, 38
