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Glock 21SF Gen3 Semi-automatic .45 ACP 4.6" Barrel 13+1 Rounds Used Law Enforcement Trade-in
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$449.99
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SKU: WX2*0711078
Overview
Built for shooters who want a full-size .45 ACP pistol with a more manageable grip profile, this used law enforcement trade-in combines the 21SF’s reduced backstrap circumference with Glock’s Gen3 layout for easier control. It is presented as a semi-automatic option with a 4.6" barrel and 13+1 capacity, making it well suited for range use, duty-style training, or as a practical home-defense handgun. The included Glock rail allows for accessory mounting, while the Safe Action system and gas nitride finish are part of the factory configuration. As a trade-in, it may show finish rub and holster wear, so buyers should expect cosmetic use consistent with its prior service history.
Why Hunters Choose the Glock
Reduced Backstrap
Circumference offers improved comfort and
Includes 13-round
Magazine for standard-capacity use
Glock Rail
Allows mounting compatible tactical accessories
Safe Action
System is designed to help
Law Enforcement
Trade-in pricing offers a lower
Key Features
- Glock 21SF Gen3 semi-automatic pistol chambered in .45 ACP.
- Used law-enforcement trade-in model with finish rub and holster wear.
- 4.6-inch barrel and 13+1-round capacity.
- Small Frame design reduces backstrap circumference for added comfort and control.
- Gas nitride finish is described as offering durability and corrosion resistance.
- Includes one 13-round magazine and a Glock rail for tactical accessories.
Best Used For
- Law enforcement trade-in buyers wanting a proven-duty pistol at a lower price point.
- Shooters with smaller hands seeking a reduced backstrap circumference for improved comfort and control.
- Hunters or outdoorsmen wanting a .45 ACP sidearm with manageable recoil and 13+1 capacity.
- Users planning to add tactical accessories using the integrated Glock rail.
- Buyers comfortable with visible finish rub and holster wear on a used firearm.
Specifications
| Accessory Compatibility | Adds tactical accessories |
|---|---|
| Action | Semi-automatic |
| Backstrap Circumference | Reduced circumference |
| Barrel Length | 4.6" |
| Barrel Manufacturing Method | Cold-hammer forging |
| Blade Finish | Gas nitride |
| Caliber | 45 ACP |
| Capacity | 13+1 rounds |
| Condition | Used Law Enforcement Trade-in |
| Corrosion Resistance Claim | Maximum durability and corrosion resistance |
| Frame Size | Small Frame |
| Hand Size Suitability | Especially for shooters with smaller hands |
| Included Magazine Count | 1 |
| Magazine Capacity | 13 rounds |
| Model | 21SF Gen3 |
| Rail | Glock rail |
| Safety System | Safe Action System |
| Trade In Notes | Expect some finish rub and holster wear |
Pros
- Reduced backstrap circumference offers improved comfort and control, especially for smaller hands.
- Includes a 13-round magazine for standard-capacity use.
- Glock rail allows mounting compatible tactical accessories.
- Safe Action system is designed to help prevent unintended discharge.
- Law enforcement trade-in pricing offers a lower entry cost than original retail.
- Used condition may show finish rub and holster wear, but remains serviceable.
Considerations & Trade-offs
- As a used law-enforcement trade-in, expect visible finish rub and holster wear; cosmetic condition may vary from one pistol to the next.
- The 13+1 capacity is solid for a .45 ACP pistol, but it comes with a single included 13-round magazine, so additional magazines may be needed for range use or carry setup.
- The 21SF’s reduced backstrap circumference is intended to improve comfort and control, which may be a better fit for smaller hands than the standard frame.
- This is a .45 ACP full-size service pistol, so it offers a larger footprint than compact carry options and may be less convenient for concealed carry.
Suggested Comparisons
- .45 ACP semi-automatic pistols
- Compact or small-frame handguns
- Law enforcement trade-in firearms
- Pistols with accessory rails
Suggested Accessories
- Magazine pouch
- Cleaning kit
- Pistol case
- Weapon light
Frequently Asked Questions
What comes with this Glock 21SF Gen3 trade-in package?
The listing says it includes one 13-round magazine.
Is this a new pistol or a used trade-in?
This is listed as a used law enforcement trade-in model, so some finish rub and holster wear should be expected.
What does the 21SF frame change compared with the standard Glock 21?
The 21SF reduces the circumference of the backstrap, which is described as offering increased comfort and control, especially for shooters with smaller hands.
Does this pistol have a rail for accessories?
Yes. The description says it is equipped with a Glock rail for adding tactical accessories.
What safety system is mentioned for this model?
The listing states it uses Glock's Safe Action System, which is described as helping ensure the firearm does not fire unintentionally.