Walther PPQ M1 40 to 9mm conversion barrel

The #1 community for Gun Owners in Indiana

Member Benefits:

  • Fewer Ads!
  • Discuss all aspects of firearm ownership
  • Discuss anti-gun legislation
  • Buy, sell, and trade in the classified section
  • Chat with Local gun shops, ranges, trainers & other businesses
  • Discover free outdoor shooting areas
  • View up to date on firearm-related events
  • Share photos & video with other members
  • ...and so much more!
  • Hop

    Grandmaster
    Site Supporter
    Rating - 100%
    16   0   0
    Jan 21, 2008
    5,089
    83
    Indy
    I really like my Walther PPQ M1 .40 but... I felt the 40 hate from the gun community. Calling it a 10mm short helped for a while but I kept having that "I'm no longer a cool kid" feeling.

    A friend that worked for Walther (no longer there) even razzed me about having a four-tay & suggested I take a look at Jarvis. Even the Walther booth employees at NRAAM Indy said the conversion barrels worked well. Walther had no plans to offer their own conversion barrel. It was sell it at a loss and buy another PPQ in 9mm or live with the shame.

    Feeling the need to rejoin the cool kids, I ordered a 9mm conversion drop-in barrel & two 9mm 15 round M1 mags. I even went threaded (hoping for cool kid+ status)! After a few weeks it showed up in the mail. Nice machining job. Fit was nice.

    I do what I always do with a new gun. Let the slide slowly try to cycle a round. See if it'll chamber & go into battery on it's own using the recoil spring. Slowly pull the slide to the rear and see if it'll eject. THIS IS NOT a reliability test. Just something I do to look for possible points of failure. Hollow points hanging up on a feed ramp, incorrect mag feed lip angles, yadda yadda, etc.

    The Jarvis conversion barrel failed my slow ejection test. The ejector droped the round early causing a jam. BUT, this was a live round, not just a fired case. Quickly racking the slide worked perfectly, mag after mag after mag.

    Live fire testing went well. I ran ~120 rounds using 3 different loads; 115 fmj, 124 gr fmj & 124 gr HST hollow point. Everything functioned perfectly. When doing my part @ 15 yards, accuracy was great. 1 big ragged hole.

    I'd recommend this conversion barrel to anyone else that felt left out like me. Nowhere on the gun, does it say .40 S&W. Once you swap in the 9mm conversion, no one will be the wiser. You can say you were always one of the "cool kids". I won't tell anyone if you won't.

    Barrels available here: https://jarvis-custom.com/pistol-barrels/walther-conversion/
     

    Hop

    Grandmaster
    Site Supporter
    Rating - 100%
    16   0   0
    Jan 21, 2008
    5,089
    83
    Indy
    The conversion is nice, and the threaded barrel definitely moves you into cool+, but did you know that there's a +cool+ version of the PPQ? https://www.waltherarms.com/handguns/ppq-q4-tac/

    That's pretty slick & definately +cool+! It has the same problem as my Canik TP9 SFx though. Install an RMR & you lose the rear sight. I killed my RMR Dual at a Run-n-Gun event and was sight-less and that's not cool at all.
    I'm taking my G19X to ZRT for a RMR cut this week. I'll be able to keep both the RMR & the rear sight on that gun.
     

    Tombs

    Grandmaster
    Rating - 0%
    0   0   0
    Jan 13, 2011
    12,089
    113
    Martinsville
    That's pretty slick & definately +cool+! It has the same problem as my Canik TP9 SFx though. Install an RMR & you lose the rear sight. I killed my RMR Dual at a Run-n-Gun event and was sight-less and that's not cool at all.
    I'm taking my G19X to ZRT for a RMR cut this week. I'll be able to keep both the RMR & the rear sight on that gun.

    There's a reason nobody recommends the dual illumination RMR. The type 2 RM06 model is really the only model suitable for a handgun.

    As for slow cycling by hand... Why? The gun is never going to operate at those speeds in those conditions.

    I'm not really sure why you'd lose faith in your caliber choice and change because the internet made you think something else is better. Go test it and see for yourself, with your own firearm and your own tests, build confidence in your choices, instead of trying to chase a fad.
     
    Top Bottom