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glock 20

Firearm Model
The Glock 20, introduced in 1991, was developed for the then-growing law enforcement and security forces market for the 10mm Auto. The pistol will handle both full-power as well as reduced "FBI" loads that have reduced muzzle velocity. Due to the longer cartridge and higher pressures, the pistol is slightly larger than the Glock 17, having an approximately 2.5 mm (0.1 in) greater width and 7 mm (0.3 in) greater length. Though many small parts interchange with the Glock 17, with a close to 50% parts commonality, the major assemblies are scaled-up and do not interchange. The standard magazine capacity of the Glock 20 is 15 rounds. In 2009, Glock announced they would offer a 152 mm (6.0 in) barrel as a drop-in option.

The Glock 20SF is a version of the Glock 20 that utilizes the Short Frame (SF) which is based on the standard G20 frame (same width), but reduces the trigger reach from the back of the grip by 2.5 mm (0.098 in) and the heel of the pistol is shortened by 4 mm (0.16 in) so the trigger can be reached and operated better by users with relatively small hands.

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Recent contents

  1. Glock 20, Gen 4 10mm - Grey Frame!

      1. For Sale
    • $600
    • Tacoma
    • Washington
    Selling my gen 4 Glock 20, grey frame, in an effort to pare down my handgun collection. Like new condition with 250 rounds through it. Comes with original packaging/manual/accessories and 2 x 15 round magazines. Also willing to include 150 rounds of 10 mm (Magtech and S&B, 180 gr FMJ) for...
  2. S

    Glock 20 SF 10mm almost brand new

      1. For Sale
    • $500
    • Roseburg
    • Oregon
    Considering Selling my G20 SF. Has Tru glo night sights. It's had almost 2 magazines through it just to function test. It was my nightstand gun. Literally shot it, cleaned it and its been in my nightstand since. Comes with two 15 round mags, case, etc. Everything it came with. $500-600...
  3. DonkHumpington

    3 - Glock OEM G20 Gen 4 15rd mags (10mm) (SPF)

      1. For Sale
    • $50
    • Castle Rock
    • Washington
    Very lightly used. Gen 4, 15rds. $55 for all 3, shipped to your door, or $50 local pickup.
  4. DonkHumpington

    FS> Glock 20 GLOCK BARREL G20 6" 10MM

      1. For Sale
    • $100
    • Castle Rock
    • Washington
    Genuine OEM Glock replacement barrel. Barrel rifling has hexagonal profile with right hand twist. 6.02 inch - 153mm length. Fits M/20. Part number 15 on the Glock Schematic. Minimal shots fired. https://www.glockparts.com/custom/GLSP07557.htm $100 shipped to your door
  5. SrMachoSolo

    Glock 20 10mm Long Slide

      1. Want to Buy
    • Hillsboro
    • Oregon
    Looking to build a G20L in 10mm. Lone Wolf is out of stock, of course. Anyone willing to part with theirs? -Robert
  6. W

    Glock 20 gen 4 - LIKE NEW

      1. For Sale
      2. For Trade
    • $650
    • Independence
    • Oregon
    Selling my Gen 4 Glock 20. It is in excellent, like-new condition. Used for backpacking this summer. I fired maybe 50 rounds through it. Comes w/ everything from the factory. Local pick-up preferred. Willing to ship FFL too FFL if needed. $650 picked-up or PLUS shipping. My local FFL does the...
  7. M

    Glock 20 gen 4 with extras and ammo

      1. For Sale
      2. For Trade
    • $750
    • Lakewood
    • Washington
    Tonigjt only new unfired glock 20 gen 4 with trijicon HD xr night sights, polished internals, owb holster, 3 glock oem 15 round mags, 2 boxes of Underwood xtream penetrator 140gr ammo, 50 rounds of S&B 180gr JHP, and 50 rounds of magtech 180gr fmj ammo. Im asking for 750 or best offer for the...
  8. M

    New Glock 20 Gen 4 with extras and ammo

      1. For Sale
      2. For Trade
    • $800
    • Lakewood
    • Washington
    New, never fired Glock 20 Gen 4 10mm Auto comes with 3 15 round glock factory magazines, trijicon HD XR day/night sights(photoluminesent orange front sight dot with 3 dot tritium dight sights), new Safariland 7TS ALS paddle Holster and Tagua Leather thumb holster, 50 rounds of magtech 180gr FMJ...
  9. M

    10mm Auto Glock 20 Gen 4 unfired with extras

      1. For Sale
      2. For Trade
    • $850
    • Lakewood Tacoma
    • Washington
    New, never fired Glock 20 Gen 4 10mm Auto comes with new Safariland ALS Holster and Tagua Leather thumb holster, 50 rounds of magtech FMJ ammo, 50 rounds of S&B 180gr JHP, and 40 rounds of Underwood Xtream Ammo. Asking for $850 for everything or trade. Interested in Subguns, Pistols, ect plus...
  10. M

    Glock 20 Gen4

      1. Want to Buy
    • Kalama
    • Washington
    Looking to buy a Glock 20, hopefully Gen 4. I commercial/sport fish in Alaska and had a run in with a moose last year. All I had on me was a .38 revolver which was NOT ideal for dropping a moose. Luckily the sound scared it off. I'm hoping I can purchase one and go through the transfer process...
  11. M

    WTB Glock 20 Gen 4

      1. For Sale
    • $0
    • Kalama
    • Washington
    Looking to buy a Glock 20, hopefully Gen 4. I commercial/sport fish in Alaska and had a run in with a moose last year. All I had on me was a .38 revolver which was NOT ideal for dropping a moose. Luckily the sound scared it off. I'm hoping I can purchase one and go through the transfer...
  12. chrisblake

    Glock 20 gen. 4 with MCK, KKM barrel, EOTech 512

      1. For Sale
    • $1500
    • Puyallup
    • Washington
    Hello all, thank you for checking my ad! For sale is this Glock 20 (10mm) gen. 4 that has not been fired. It comes with the stock barrel and guide rod/spring assembly and the installed KKM match grade barrel and installed Lone Wolf stainless spring and rod assembly. The MCK I bought with...
  13. Silver Fox

    Glock 20, OEM 15 round magazines

      1. For Sale
    • $20
    • McMinnville
    • Oregon
    I have two Glock 20 mags for sale. $20.00 per mag. Picked up in McMinnville or shipped on your dime if legal in your zip code blah blah blah..... Now with pics included! as of 22 May these are back on the market. SF-
  14. Slade762

    Glock 21 holster

      1. For Sale
    • $50
    • Elma
    • Washington
    Gun fighters Inc. Ronin OWB right hand holster. Only had it a couple months and carried with it only a couple times, feels great. Opened up the end with a heat gun to fit my threaded barrel, other than that it's in perfect condition.
  15. plasmire

    Glock 20

      1. Want to Buy
    • Redmond
    • Washington
    Looking for a Glock 20 my budget is $500 and located in the Greater Seattle area.
  16. polymer_paulie

    GALCO KingTuk Deluxe IWB holster for Glock

      1. For Sale
      2. For Trade
    • $25
    • Vancouver
    • Washington
    Galco inside waistband (IWB) pistol holster: Holster fits Glock models: 20, 21, 21 SF w/ standard Glock rail, 29, 30, 30 w/ standard Glock rail Right handed, black hybrid holster made of Kydex & saddle leather that is premium center cut steer hide. Completely concealable or “tuckable” design...
  17. polymer_paulie

    GALCO KingTuk Deluxe IWB holster for Glock

      1. For Sale
      2. For Trade
    • $30
    • Vancouver
    • Washington
    Galco inside waistband (IWB) pistol holster: Holster fits Glock models: 20, 21, 21 SF w/ standard Glock rail, 29, 30, 30 w/ standard Glock rail Right handed, black hybrid holster made of Kydex & saddle leather that is premium center cut steer hide. Completely concealable or “tuckable” design...
  18. clanhanson

    Glock 20 Gen4 + Extras

      1. For Sale
    • $800
    • Helena
    • Montana
    Selling my Glock 20 Gen 4. Includes original case, manuals, lock, magazine loading tool, backstraps, etc. Also includes its factory front and rear sight which were replaced with a set of Truglo tritium sights. Has a Talon grip installed which makes the handgun very easy to handle. Includes...
  19. Badb57

    PRICE DROP Glock 20 10mm w/4mags for mini14

      1. For Sale
      2. For Trade
    • $675
    • HILLSBORO
    • Oregon
    Comes with everything in the photo, I also have ammo 10mm ARX Interceptor 90 grain 200 rounds available to purchase seperatly, MPN 10ARXBR-20 UPC 810678030977 Manufacturer INCEPTOR AMMO Caliber 10MM AUTO AMMO Bullet Type Lead-Free Muzzle Velocity 1780 fps Muzzle Energy 633 ft...
  20. S

    Gen 4 Glock 20 standard frame with holster and ammo Near New!

      1. For Sale
      2. For Trade
    • $700
    • Redmond
    • Oregon
    I have a completely stock standard gen 4 Glock 20 for sale. I also have the Razco chest holster attachment that puts it below the FHF bino harness. It will also come with an Advantage Arms 22LR conversion. https://www.rockyourglock.com/custom/ADV-AACLE20-21.htm Very nice piece. Just trying...
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