Zev Technologies Titanium Pin Kit is designed for anyone having issues disassembling their Glock frame for cleaning and maintenance purposes. Each pin is size specific and grooved for retention and better grip. The Titanium Pin Kit includes: trigger pin, locking block pin, and a full 3rd gen length ejector housing pin. This model is compatible with Glock 17C/17L/19/19C/20/20C/20S/21/21C/21S/22/22C/23/23C/24/24C/26/27/29/29S/30/30S/31/ 31C/32/32C/33/34/35/37/38/39 Gen3. They are not compatible with the Glock 36, 42, or 43.