10mm recoil spring for g21 sf

[skid dog]

hi i recently purchased a new glock 21 sf and it came with a 10mm barrel as well. the previous owner told me that he thought that when you put the 10mm barrel in it needed a 10mm recoil spring. is this true? i know nothing about 10mm.

thanks for the help

 

[mlehtovaara]

Would imagine so. 10mm is a pretty hard hitting round compared to .45 acp.

But once you learn a little more about 10mm you prolly wont be shooting it anyways, unless your set up to reload, or hit the lotto!