The Ghost Ranger is ideal for those who demand the finest drop-in trigger connector for self defense and want to keep an average of 4.5lb trigger pull. The hole in the connector removes debris from the trigger mechanism. Debris in this area would normally cause the Glock designed connector to bind with the trigger bar rendering the pistol inoperable. The Ghost Ranger removes these pistol choking debris insuring that no matter what gets in the hole gets it out! Fine tune your trigger pull feel you like all in one kit! DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.