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Glock 21 Gen4 45 ACP Police Trade-ins (Good Condition)

  • Item Number: 21GEN4 G
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  • View More Items by Glock
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  • Condition: USED
Glock 21 Gen4 45 ACP Police Trade-ins (Good Condition)
GLOCK 21 Gen4 45 ACP Police Trade-ins (Good Condition)
GLOCK 21 Gen4 45 ACP Police Trade-ins (Good Condition)
GLOCK 21 Gen4 45 ACP Police Trade-ins (Good Condition)
GLOCK 21 Gen4 45 ACP Police Trade-ins (Good Condition)
$329.99 $469.00

Limited-time Deal
In Stock
30-Day Free Returns

If this used firearm is found to be mechanically defective, it can be returned in its original, shipped condition for a full refund or replacement within 30 days of purchase. Learn more

  • GLOCK GLOCK 21 GEN4 US MADE POLICE TRADE ( GOOD CONDITION)

    Glock 21 Gen4 45ACP Police Trade-In Pistols (Good Condition)
    $329.99

  • GLOCK 21SF 45ACP POLICE TRADE-IN (VERY GOOD) CONDITION

    Glock 21SF Gen3 45 ACP Police Trade-in Pistols (Very Good Condition
    $399.99

  • GLOCK GLOCK 21 GEN4 45 ACP POLICE TRADE-IN (VERY GOOD) CONDITION

    Glock 21 Gen4 45 ACP Police Trade-ins (Very Good Condition)
    $369.99

  • GLOCK GLOCK 21 GEN4 US MADE POLICE TRADE ( VERY GOOD CONDITION)

    Glock 21 Gen4 45ACP Police Trade-In Pistols (Very Good Condition)
    $359.99

  • GLOCK 21SF 45 ACP POLICE TRADE-IN (GOOD) CONDITION

    Glock 21SF Gen3 45 ACP Police Trade-in Pistols (Good Condition
    $379.99

  • GLOCK 21 45 AUTO USED

    Glock 21 SF Gen3 45 ACP Police Trade-In Pistol
    $319.99

  • GLOCK 21GEN4 45 ACP USED

    Glock 21 Gen 4 45 ACP Police Trade-In Pistol
    $349.99

  • GLOCK 21 GEN4 45 ACP STRIPPLED POLICE TRADE-IN (FAIR) CONDITION

    Glock 21 Gen 4 45 ACP Strippled Police Trade-In Pistol (Fair Condition)
    $319.99

  • GLOCK 21 GEN3 45 ACP USED

    Glock 21 Gen 3 45 ACP Police Trade-In Pistol
    $329.99

  • Hornady 45 Auto 185 gr XTP American Gunner 20/Box

    Hornady 45 Auto 185 gr XTP American Gunner 20/Box
    $14.99
    ($0.75 / round)

  • Hornady 45 Auto 185 gr FTX Critical Defense 20/Box

    Hornady 45 Auto 185 gr FTX Critical Defense 20/Box
    $24.49
    ($1.22 / round)

  • Hornady 45 Auto+P 230 gr XTP 20/Box

    Hornady 45 Auto+P 230 gr XTP 20/Box
    $34.99 $19.49
    ($0.97 / round)

  • Hornady 45 Auto 230 GR XTP JHP Subsonic 20/Box

    Hornady 45 Auto 230 GR XTP JHP Subsonic 20/Box
    $21.79
    ($1.09 / round)

  • Magtech 45 Auto 230 gr FMJ 50/Box

    Magtech 45 Auto 230 gr FMJ 50/Box
    $24.99 $19.99
    ($0.40 / round)

  • Hornady 45 Auto 200 gr XTP/JHP 20/Box

    Hornady 45 Auto 200 gr XTP/JHP 20/Box
    $17.99
    ($0.90 / round)

  • Winchester 45 ACP +P 175 gr Ranger Frangible SF Police Trade Ammo 50/Box

    Winchester 45 ACP +P 175 gr Ranger Frangible SF Police Trade Ammo 50/Box
    $39.99
    ($0.80 / round)

  • Winchester 45 Auto 230 gr JHP Ranger T-Series Police Trade Ammo 50/Box

    Winchester 45 Auto 230 gr JHP Ranger T-Series Police Trade Ammo 50/Box
    $49.99 $44.99
    ($0.90 / round)

  • Hornady 45 Auto +P 220 gr Flexlock Critical Duty 20/Box

    Hornady 45 Auto +P 220 gr Flexlock Critical Duty 20/Box
    $25.99
    ($1.30 / round)

  • Sig Sauer 45 Auto 200 gr JHP Elite V-Crown 20/Box

    Sig Sauer 45 Auto 200 gr JHP Elite V-Crown 20/Box
    $31.99 $18.99
    ($0.95 / round)

  • Federal 45 Auto 230 gr JHP HST Police Trade Ammo 50/Box

    Federal 45 Auto 230 gr JHP HST Police Trade Ammo 50/Box
    $39.99
    ($0.80 / round)

  • Winchester 45 ACP 230 gr Bonded JHP PDX1 Defender 20/Box

    Winchester 45 ACP 230 gr Bonded JHP PDX1 Defender 20/Box
    $23.99
    ($1.20 / round)

Product Description

Firearm Features

  • Model: 21 (Gen4)
  • Caliber: .45 Auto
  • Capacity: 13 Rounds
  • Magazines: Comes with 2
  • Barrel Length: 4.61 in.

The photo represents the overall condition of these Glock 21 Gen4 police trades, all of which are in good condition, and come with two magazines.

Price is for one Glock 21 Gen4 Pistol. Please note that used firearms may contain surface rust, scratches and/or holster wear.

Used--Glock-21-police-trade-firearms

Customer Comments & Questions

Customer Reviews

Write a review
(5 out of 5) l heart Glocks
by Samuel from oly, WA on February 17, 2020

The pistol came in very clean condition. For the price you just can't go wrong. Shooting 45 ACP is fun.

(5 out of 5) Glock 21 gen 4
by John from Champlin, MN on March 16, 2022

Nice shape, couple of scuffs but better than the good rating it has.

(5 out of 5) Glock 21
by SK from JC, TN on September 8, 2025

I’ve always liked the Glock 21 but never pulled the trigger on owning one until now. I was a little skeptical at first. I’ve never purchased a used firearm sight unseen before, especially an LE trade-in. I decided to roll the dice, and I’m so glad I did. It does have minimal holster wear on the slide, which I fully expected, but the frame is scratch-free. I gave it a good thorough cleaning, and she’s good to go. I don’t know if I just got lucky or if this is the typical quality firearm they send in good condition, but I’ll definitely be doing business with Sportsman’s Outdoor Superstore again.

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