Five lb connector and NY1 bring about spring in ALL of them. What I've observed more than these 8 guns (additional so with the 6 G30's of all three configurations, but nevertheless considerably present in The 2 G21's) is the following - It is lighter and you have extra felt https://how-do-i-buy-a-gock-30-ge25566.ageeksblog.com/31830833/the-definitive-guide-to-how-do-i-buy-a-gock-30-gen-4-online