just got mine the other day. had him make a little bigger one so i could use spyder springs for more tunability. i guess he is worried about it getting damaged in shipping cause it came in a rather large box for the size part. packaging popcorn and bubble wrapped for a stainless part. these are top notch and i will get to try it out tomorrow. have to wait for the wife to be at work cause she don't know i have as much paintball stuff as i lead on. thanks again.