Pennsylvania Firearm Owners Association
Page 1 of 2 12 LastLast
Results 1 to 10 of 16
  1. #1
    Join Date
    Feb 2015
    Location
    814, Pennsylvania
    Posts
    1,010
    Rep Power
    6926539

    Default Turning an AR15 into a 9mm

    If I have an AR15 lower .. what and who's parts is the easiest , best way to use that lower with an upper that will allow me to fire 9x19

  2. #2
    Join Date
    Nov 2007
    Location
    Belly of the BEAST, Pennsylvania
    (Montgomery County)
    Posts
    1,338
    Rep Power
    21474850

  3. #3
    Join Date
    Feb 2015
    Location
    814, Pennsylvania
    Posts
    1,010
    Rep Power
    6926539

    Default Re: Turning an AR15 into a 9mm

    Quote Originally Posted by icp4life162005 View Post
    Seeing the stern and PSA mag adapter using glock mags.
    That would be fine if they are good to go..
    Preference on an upper?

  4. #4
    Join Date
    Sep 2011
    Location
    York, Pennsylvania
    (York County)
    Posts
    162
    Rep Power
    3637003

    Default Re: Turning an AR15 into a 9mm

    You can also use the Mean Arms EndoMag inserts that go into p-mags. No need for a mag block for the lower. If you already have a bunch of Glock mags then the lower mag block may be the way to go. I didn't have any Glock mags so I got several of the EndoMags. They have 2 different kind, a regular and one to use with CMMG uppers.
    Also remember it is probably a good idea to change to an extended 9MM buffer when using the 9MM upper.
    Good luck and happy shopping!!

    https://www.meanarms.com/products/detail/endomag-9mm
    Globalism started "it". Reject the "new normal".

  5. #5
    Join Date
    Jan 2007
    Location
    Pittsburgh, Pennsylvania
    (Allegheny County)
    Posts
    27,392
    Rep Power
    21474877

    Default Re: Turning an AR15 into a 9mm

    You need some sort of mag block to accommodate the type of mags you want to use - Colt style, or Glock.

    You need a 9mm heavy buffer.

    I think that's it for the lower.

    For the upper, the only difference is the barrel and the bolt carrier group.
    (Pgh) PAFOA GROUP SHOOT * Sat June 20th * ALL WELCOME (click 4 info)

  6. #6
    Join Date
    Jan 2007
    Location
    Pittsburgh, Pennsylvania
    (Allegheny County)
    Posts
    27,392
    Rep Power
    21474877

    Default Re: Turning an AR15 into a 9mm

    Here's my 9mm build thread.
    http://forum.pafoa.org/showthread.php?t=313395

    Here's a thread I started to get input before I started it.
    Some info pertaining to pricing is dated, and there are more options for mag blocks now. But it may give you some ideas and tips.
    http://forum.pafoa.org/showthread.php?t=294738
    (Pgh) PAFOA GROUP SHOOT * Sat June 20th * ALL WELCOME (click 4 info)

  7. #7
    Join Date
    Feb 2015
    Location
    814, Pennsylvania
    Posts
    1,010
    Rep Power
    6926539

    Default Re: Turning an AR15 into a 9mm

    Thanks all ... taking many notes
    One thing .... on the buffer ..... a heavier one or a longer one would be better ?
    or are they one in the same?

  8. #8
    Join Date
    Jan 2007
    Location
    Pittsburgh, Pennsylvania
    (Allegheny County)
    Posts
    27,392
    Rep Power
    21474877

    Default Re: Turning an AR15 into a 9mm

    Quote Originally Posted by Boondox View Post
    Thanks all ... taking many notes
    One thing .... on the buffer ..... a heavier one or a longer one would be better ?
    or are they one in the same?
    There are "9mm buffers". Get one.
    Simple.

    Oh, there's also some sort of thing to add to one - a buffer for the buffer? I forget.
    Not sure it's needed in all applications. I'm sure it's mentioned in my thread(s).
    It's not critical - it reduces wear. (as best I recall)

    Edit: "Buffer spacer" is the name of the thing I mentioned.
    It may be that newer designs of buffers no longer need them. Look into it.
    Last edited by Emptymag; April 5th, 2020 at 04:36 PM.
    (Pgh) PAFOA GROUP SHOOT * Sat June 20th * ALL WELCOME (click 4 info)

  9. #9
    Join Date
    Feb 2015
    Location
    814, Pennsylvania
    Posts
    1,010
    Rep Power
    6926539

    Default Re: Turning an AR15 into a 9mm

    Hey , you would not have a price idea of pre-panic prices on the AR9 build kits from PSA would you?

  10. #10
    Join Date
    Jan 2007
    Location
    Pittsburgh, Pennsylvania
    (Allegheny County)
    Posts
    27,392
    Rep Power
    21474877

    Default Re: Turning an AR15 into a 9mm

    Quote Originally Posted by Boondox View Post
    Hey , you would not have a price idea of pre-panic prices on the AR9 build kits from PSA would you?
    No idea. I built mine by selecting the parts I wanted - I didn't look at kits at the time.

    Even at current pricing being slightly elevated, this isn't a horrible price for a 9mm specific complete lower.
    It's for Colt pattern mags. Glock lower appears to be more.
    A good mag block to insert in an existing AR lower is going to cost $75 - $175 depending on the brand, so dedicated lowers are often the more affordable route.
    Just depends on what you have and what you want to do.
    A dedicated 9mm lower is always that. A 9mm mag block can be removed from a standard lower if you want to use the lower for a different caliber.
    https://palmettostatearmory.com/psa-...r-classic.html

    Have you decided if you want a pistol or carbine?
    I can't recall if you mentioned that.
    (Pgh) PAFOA GROUP SHOOT * Sat June 20th * ALL WELCOME (click 4 info)

Page 1 of 2 12 LastLast

Similar Threads

  1. Turning in firearms
    By domagala in forum General
    Replies: 24
    Last Post: November 10th, 2010, 10:56 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •