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Thread: The PX4 Compact might be my DA/SA Glock 19

  1. #3911
    I have been trying to piece together an idea of the spring weights. @LangdonTactical has 10# and 11# springs for the PX4. LTT also says the PX4 D spring is too light for use in the 92. In a video on 92 springs, Ernest suggests the 92 gets dicey below 13#, which leads me to believe the PX4 D spring may be in the 12# to 13# range. Ernest also says the standard 92 spring is/was 20# and the 92 D spring is 16#. Then Ernest warns that the 92 D spring is heavier than the standard PX4 spring. That suggests that the standard PX4 spring is somewhere in the 13# to 15# range.

    At any rate, if anyone knows the weights of the PX4 standard and D springs, I would appreciate that info.

  2. #3912

    Those 3 little coils...

    Quote Originally Posted by gc70 View Post
    I have been trying to piece together an idea of the spring weights. @LangdonTactical has 10# and 11# springs for the PX4. LTT also says the PX4 D spring is too light for use in the 92. In a video on 92 springs, Ernest suggests the 92 gets dicey below 13#, which leads me to believe the PX4 D spring may be in the 12# to 13# range. Ernest also says the standard 92 spring is/was 20# and the 92 D spring is 16#. Then Ernest warns that the 92 D spring is heavier than the standard PX4 spring. That suggests that the standard PX4 spring is somewhere in the 13# to 15# range.

    At any rate, if anyone knows the weights of the PX4 standard and D springs, I would appreciate that info.
    Your information is good, but there is a "translation metrix" missing, so to speak. The problem with the cross reference is that the m-92 springs are 3 coils longer. So, in a PX4 the stock spring produces a 20# yield and the PX4 D spring ~16#. However, the 10#, 11#, 12#, 13# spring designations are m-92 springs.

    Since a D spring from a model 92 is 3 coils longer it will be stiffer in a PX4, too stiff. Yet a D spring from a PX4 would be too weak in an m-92 (3 coils too short).

    I have found that a 12# m-92 spring in a PX4 will produce the same trigger pulls as a PX4 (actually Cougar) D spring.

    In a model 92 that same 12# spring would be right on the borderline of reliability (depending upon ammo and firing pin channel maintenance), yet in a PX4 it is strong enough that many use the 11# spring.

  3. #3913
    Member
    Join Date
    Dec 2016
    Location
    Columbus
    Regarding replacement recoil spring assemblies for the PX4 compact, I see some sites list separate parts for 9mm and .40SW, but other sites list the same (single) part as applicable to both 9mm and .40SW. Did Beretta eliminate the two separate parts in favor of one common part?

  4. #3914

    Guide rod assemblies

    Quote Originally Posted by BJV View Post
    Regarding replacement recoil spring assemblies for the PX4 compact, I see some sites list separate parts for 9mm and .40SW, but other sites list the same (single) part as applicable to both 9mm and .40SW. Did Beretta eliminate the two separate parts in favor of one common part?
    The PX4 Compact (and full size) use a different slide rebound spring (guide rod assembly) for 9mm and .40. Only the PX4 SubCompact has a progressive spring that is shared for both calibers.

    So, the PX4 Compact needs a different spring for .40. https://www.midwestgunworks.com/page/mgwi/prod/c8a652

    9mm https://www.berettausa.com/en-us/px4...tions/c8a644w/
    Last edited by PX4 Storm Tracker; 11-10-2020 at 11:59 AM.

  5. #3915
    Member
    Join Date
    Dec 2016
    Location
    Columbus
    Quote Originally Posted by PX4 Storm Tracker View Post
    The PX4 Compact (and full size) use a different slide rebound spring (guide rod assembly) for 9mm and .40. Only the PX4 SubCompact has a progressive spring that is shared for both calibers.

    So, the PX4 Compact needs a different spring for .40. https://www.midwestgunworks.com/page/mgwi/prod/c8a652

    9mm https://www.midwestgunworks.com/page/mgwi/prod/c8a644
    I had thought the same, but MGW shows the 9mm compact recoil assembly as discontinued:

    https://www.midwestgunworks.com/page/mgwi/prod/c8a644

    Brownells doesn't carry it anymore (whereas they once did), but they still carry the .40SW version.

    Maybe it's just supply shortages.

  6. #3916
    Quote Originally Posted by BJV View Post
    I had thought the same, but MGW shows the 9mm compact recoil assembly as discontinued:

    https://www.midwestgunworks.com/page/mgwi/prod/c8a644

    Brownells doesn't carry it anymore (whereas they once did), but they still carry the .40SW version.

    Maybe it's just supply shortages.
    https://www.berettausa.com/en-us/px4...tions/c8a644w/ I edited the previous comment too slowly...

  7. #3917
    Member
    Join Date
    Dec 2016
    Location
    Columbus
    Quote Originally Posted by PX4 Storm Tracker View Post
    https://www.berettausa.com/en-us/px4...tions/c8a644w/ I edited the previous comment too slowly...
    Got it. Thanks, Storm Tracker.

  8. #3918
    Member
    Join Date
    Aug 2017
    Location
    Central Texas
    Quote Originally Posted by claymore504 View Post
    Check out Black Rhino Concealment. They have the most pistols with lights and optics options I have seen. They make outstanding holsters.

    https://blackrhinoconcealment.com/ac...retta-acs.html
    Update on the Black Rhino Concealment AIWB, ACS for the Px4 Compact Carry with a TLR7 after much carry experience. It’s perfect for me, conceals under an untucked t, completely secure/comfy, excellent draw and I’m damn joyous that I can leave the TLR7 mounted on the pistol 24x7. Thank you claymore504 for the recommend, mfrey for making it possible by creating the TLR7 key, and BRC. Guess I should thank Ernest also for developing the Carry platform, thanks! I ordered the BRC with the RDO cut out/suppressor height sights option and am eagerly anticipating the Px4 RDO solution rev up with a CW sight.
    Attached Images Attached Images   

  9. #3919
    Site Supporter
    Join Date
    Jan 2020
    Location
    Cincinnati OH
    Anyone seen the new TLR7Sub which has a model that fits the PX4 Compact and Subcompact?

  10. #3920
    Member
    Join Date
    Feb 2019
    Location
    SE Texas
    Quote Originally Posted by medmo View Post
    Update on the Black Rhino Concealment AIWB, ACS for the Px4 Compact Carry with a TLR7 after much carry experience. It’s perfect for me, conceals under an untucked t, completely secure/comfy, excellent draw and I’m damn joyous that I can leave the TLR7 mounted on the pistol 24x7. Thank you claymore504 for the recommend, mfrey for making it possible by creating the TLR7 key, and BRC. Guess I should thank Ernest also for developing the Carry platform, thanks! I ordered the BRC with the RDO cut out/suppressor height sights option and am eagerly anticipating the Px4 RDO solution rev up with a CW sight.
    Glad Black Rhino had what you needed. I am amazed at the selection of combos they have overall.

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