Specs/Tolerances

Discussion in '1911 Gunsmithing' started by Rooster0311, Dec 31, 2018.

  1. Rooster0311

    Rooster0311 Guest

    132
    Dec 27, 2018
    Do any of you inspect your mag feed lips periodically and if so what spec/tolerance? This particular question pertains to a 9mm variety. I took some measurements today of my new Dan Wesson...entry side of chamber and compared to a Glock 19 gen 4 (low round count). Both @ .390”.

    mags out of the box feed lip gap:
    #1 = .320”
    #2 = .325” 43F5C4DA-B9EB-4978-8387-ED999BB4C850.jpeg B4440B2E-8F48-48B8-B1FA-7D8AE28C187A.jpeg F245F92F-40A0-47F8-BF39-11539BFC3855.jpeg 29359254-56DC-4A99-ACC9-A2ADC0C33E06.jpeg

    Chamber was a curiosity but I would like to establish a window to inspect my mags from time to time.
    Happy New Year!
     
  2. Gary Wells

    Gary Wells Active Member

    261
    Sep 26, 2011
    If mine are working they don't need looking at. But I do appreciate taking the time to post up in case I have problems.
     
    Rooster0311 likes this.

  3. TangoWhiskeyFoxtrot

    TangoWhiskeyFoxtrot I do not consent.

    Dec 28, 2017
    Inspect yes. Measure no. Not unless there is a problem. I inspect them for any visible damage, smooth follower action, dirt/debris, etc. If I was having a problem that seemed related, and did not see an obvious bend or deformation, I probably would.

    Sent from my Moto G (4) using Tapatalk
     
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  4. MHarvey

    MHarvey Active Member

    118
    Sep 2, 2011
    I usually just do a visual inspection for damage as others stated above. The first time I’ve actually measured anything was on my STI mags yesterday. They fit tight enough in my Staccato to make it a little more difficult than normal to insert them. I measured the outside dimensions against a Wilson mag that I purchased for comparison. The Wilson mag is only 2 thousandths narrower in the mag body, but inserted easier.
     
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  5. gaijin

    gaijin Well-Known Member

    May 18, 2015
    When a mag starts nose diving the first rd, or fails to drop free from gun I'll inspect/tweak/replace spring or trash mag- as needed.
    Carry gun mags have been proven at range and in a match (if a gun/equipment is gonna choke, it'll do it in a match).
     
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