Description 33230 Wolff Glock Trigger Group Competition Pak Fits All Glock Models This pak is designed to help improve trigger pull and function in competition pistols.  Included in the pak are a 4 Lb. reduced power striker spring, reduced power safety block spring and an extra power trigger spring.   Warning: This pak is for competition use only – not for duty use. Reduced or Extra Power available by special order. Contact us to inquire.