Five lb connector and NY1 bring about spring in ALL of them. What I've noticed about these 8 guns (more so Together with the 6 G30's of all 3 configurations, but still relatively present in The 2 G21's) is the subsequent - My guess would be that the Gen4 G36 https://glocknation.com/product/glock-30-gen-4/?add-to-cart=17933