The skif is no longer up for swaps i was making the spring shorter to make a lighter trigger pull as per google serch a lot of messing around bloody sore fingers the gun will fire then it will not pulled the tricker quite a vew times and it is shooting so going to sell it for repairs i am sure some with a better understanding of this pistol will fix it looking for £40 and i will post it for that price all in comes with 2 mags and a prob to push the pellets in and out