I always said I would order a chrono if I could find a place to use it - no luck with out problems. I finely broke down and robbed my G40 fund and ordered a MagnetoSpeed V3 with an attachment for Semi Auto pistols - the attachment fits the pic rails under most 1911's,Glocks and other guns with the underneath pics - NO CZ's theres a problem with them and compacts also. My G29 will work because I have a 4.6 LW barrel on it.
http://www.magnetospeed.com/collections/magnetospeed-accessories/products/v3-rail-adapter
https://www.youtube.com/watch?v=BvPDgNdqaBg&feature=youtu.be
And this one shows it in use on a Semi auto
https://www.youtube.com/watch?v=v5IXXfuTCOc

Ishould have it in about a week or so - than its off to the range to try it out. It6 also fits my MT 10mm and all other rifles also.

Doug

Doug, that will be interesting to see range reports using that setup!  Keep us posted!  I worry that the muzzle blast would take its toll on that unit, but it seem to work on the rifles! 

Its got a metal blast shield in front of the pick up area to protect it.

Doug