Glock 21 SF for sale
(15)
Glock 21SF Gen 3 .45 ACP Pistol, Black - PF2150201
Brand:
Glock
Action:
Double Action
Barrel Length:
4.61
Caliber:
.45 ACP
Capacity:
10+1
Finish Per Color:
Black
(2)
Glock G21SF .45 ACP Short Frame Pistol, Black - PF21502
Brand:
Glock
Action:
Double Action
Barrel Length:
4.6in
Caliber:
.45 ACP
Capacity:
13+1
Finish Per Color:
Black
(0)
Glock 21SF .45ACP 4.6-inch Barrel 13rd Glock Rail
Brand:
Glock
Action:
Pistol
Barrel Length:
4.61
Caliber:
.45 ACP
Capacity:
13
Finish Per Color:
Black
(0)
Glock 21SF .45 ACP 4.6" Barrel 13-Rounds Rebuilt
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
.45 ACP
Capacity:
13
Finish Per Color:
Black
Marketplace Insights
★ 4.8/5
based on 17 customer reviews across 4 variants from 23 retailers
Highly reliable and accurate .45 ACP with excellent ergonomics and low recoil, though some customers experienced retailer-related issues with magazine options.
What customers like
Reliability & Performance71%
I have put approx 2000 rounds through it. My pistol has never jammed.
Accuracy41%
3-5 inch groups at 10 yards.Shot Rem Golden Saber 230 gr JHP
Comfortable Ergonomics35%
Fits the hand well and after a little trigger work is a great shooter.
Low Recoil for .4524%
Virtually no muzzle flap and very little recoil makes this an ideal duty weapon!
High Capacity Magazine24%
13+1 in .45 caliber is no joke.
Common concerns
Magazine Capacity Confusion12%
I was certain that I ordered the model with 13 round magazines and received 10 round mags.
Retailer Service Issues12%
Not happy with Bass Pro on this sale, they get 1 star.
Frequently Asked Questions
Glock 21 SF for sale
What is a Glock 21SF?
The Glock 21SF is a full-size striker-fired pistol chambered in .45 ACP with a 13-round magazine. The "SF" designation stands for Short Frame, meaning a reduced grip circumference compared to the standard G21, accommodating shooters with smaller hands. It was marketed as a duty and self-defense pistol.
What is the difference between Glock 21 and 21SF?
The 21SF has a shorter, narrower grip frame than the standard 21, making it more comfortable for shooters with smaller hands. Both chamber .45 ACP and hold 13 rounds. The SF also added a dual recoil spring assembly and a Picatinny rail for accessory mounting.
Is the Glock 21SF any good?
The 21SF is a reliable, full-size .45 ACP pistol with a shortened frame that fits smaller hands better than the standard 21. It handles recoil well and has a strong reliability record. Discontinued but available used for around $500–$550.
Is the Glock 21SF discontinued?
Yes, Glock discontinued the 21SF. Used examples remain available through our marketplace, with 4 variants listed across 23 retailers. Median pricing is around $548, with most listings between $521–$675. All variants currently show in-stock availability.
How many rounds does a Glock 21SF hold?
The Glock 21SF standard magazine holds 13 rounds of .45 ACP. Ten-round magazines are also available for states with capacity restrictions.
Does Glock 21 and 21SF use the same magazine?
Yes, mostly. Both use .45 ACP 13-round magazines, but some 21SF variants featured an ambidextrous magazine release requiring a specific front cut in the magazine. Standard Glock 21 magazines may not function correctly in those particular 21SF models. Check your specific variant before assuming full interchangeability.
When was the Glock 21SF made?
Glock introduced the 21SF in 2007. The short-frame variant was designed to compete for a Department of Defense contract. Though that contract didn't materialize, the 21SF gained adoption among law enforcement and remains in production today.
What does Glock FS stand for?
FS on Glock models can mean either Front Serrations (Glock's official designation) or Fixed Sights depending on the retailer or context. The meaning is not consistent across all sources, so verify which definition applies to the specific model you are researching.