Used Glock 21 SF Police Trade In G21 45 ACP Night Sites one Mag

Out of Stock


Excellent condition Glock 21 Police Trade in. Comes in the box with one mag. 

GLOCK 21 SF (Short Frame)

The “big bore” 45 Auto caliber has since long been regarded with a special reverence. Many shooters feel a special relationship with this timeless caliber. The GLOCK 21SF presents everything one would expect of a 45 Auto pistol. The SF design reduces the circumference of the receiver, offering increased ease-of-use and control, especially to shooters with smaller hands.



Categories: Semi Auto Pistols
Condition: Used
Manufacturer: Glock
Model: 21
Caliber: 45 Auto / ACP
SKU: G21LEtrade
UPC: 764503072017
Vendor: Gunprime
Reviews (30)
By Chris, The Woodlands TX on 08/15/22
Great price, Great gun, fast service!

Pistol was in excellent shape. Gunsprime had a mismatched delivery. I called to check on the status of my order and they told me they didn't have a SF they could give and would be a wait till they got another in. Instead they offered me an upgraded one in Cercoate if I would accept that one. Easy choice! Was shipped that day and arrived two days later to my FFL. Thanks for the extra gunsprime! Very satisfied and will definitely purchase again.
On the pistol, this weapon is more accurate than I can be. 12" pattern at 25 yds. I'm impressed with pistol!
Chris in Texas

By Willie fai on 06/29/22
I love my g21the best thing I have bought in. a long time.

The best thing I have bought in a long time. I will buy more from Gunprime.great service thank you guys.

By NoRobots on 06/29/22
Used G21

Received a Glock 21 in great condition! Everything was handled quickly and professionally.

Thank you for the prompt and friendly service!

By Scott on 06/21/22
Well done

Looks to be in excellent condition, received to my FFL much earlier than anticipated. Now I'm waiting on my ammunition and cleaning kit to go out and enjoy it.

By C Allen on 06/15/22
Very positive experience

Happy with my purchase, first time buyer online and all went very well. No complaints, will purchase again from gunprime.

By Sam the Man on 06/09/22
Gun came quickly and as promised.

The Glock speed loader was not in the box and It did need a thorough cleaning but otherwise I am happy..
Can’t wait to take it to the range!!!

By Jeff on 05/31/22
Glock 21 sf (excellent condition)

This gun was not what I would consider excellent condition should have been listed as good. Gun functions but just had to many scratch’s to be considered excellent condition.

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By Capt. Morgan on 03/22/22
A little something old… and something new…

Ended up with a Gen 3 Glock21SF marked “Clay Co. Sheriff.” A little holster wear but after a clean and lube seems barely fired.

No glo on the night sights… just ordered a new Night Fision replacement set so will see how it goes.

Once installed will head the range and cycle a few hundred rounds.

By dundunit on 03/14/22
Not bad

My pistol I got was well loved and showed a lot of holster wear. Not a huge deal but you’re always hoping you’ll get the “special one”. Clean bore, clean pistol. Can’t really complain.

By Brian on 03/12/22
Great Used Trade-In

The Glock came into my FFL in pretty solid shape. Some small holster wear on the slide, frame looks nearly-new. Sights are solid and the price was great. Magazines were in good shape. One of the mags did have someone's last night written on it in faded sharpie. The Glock came with the original case that matched up serial numbers to the pistol. The magazine name matched the name written in tape on the Glock box so this thing stayed together throughout its life! Shipping is very fast with Gun Prime and pretty reasonable. I had a bit of an order issue and Gun Prime was responsive, fixed the issue, and threw in an extra magazine for my troubles! Great customer service!

By Steven on 03/12/22
Awesome condition with fast delivery

This gun is a Leo trade in and it is in near new condition. Came with two magazines in the same condition. Delivery was quick to my FFL and the price was very good.

By Bobby Creel on 03/08/22
Look nearly new

I got 2 gen3 sf and one looks brand new and the other is almost as good. I'm very happy with these. Definitely worth the price. Shipped very quickly too.

By Shooting in OK on 03/04/22
Great used weapon

Received in great condition for a used product, additional items (hard case, lock, extra magazines and original manufactures literature) were in great condition. Would recommend.

By Buddy on 02/18/22
Great job

Fastest response and delivery I have ever experienced. Gun was great!

By Damian on 02/14/22
Good deal

There are some wear marks on LE trade in guns always, but overall really good deal especially for the money. Thanks You!

By DWill on 02/02/22
Good Purchase

Received a Gen 4 G21 instead of the Gen 3 G21SF i was expecting. This is not necessarily a bad thing but i had plans to the use the slide of a Gen 3 for a P80 build. Nevertheless I’m extremely satisfied with my purchase and will buy from Gunprime in the future.

By Grunt on 02/01/22
Great Purchase

Better than expected condition. Fast delivery and service. Thank you.

By Val on 02/01/22
Great gun

Very nice condition, I am impressed.
Quick prompt shipping

By Cody on 01/31/22

The fastest shipping in the industry, beyond impressive. The G21SF was in near pristine perfection and embodies what Glock stands for. Only the barrel showed any sign that it was fired previously. It was super minuscule and could only be seen with a bore light.

By Dr. Phil on 01/28/22
Great firearms

Purchase LE trade ins and they were in great condition, better than expected. Was happy and will buy again.

By Bradley Ambers on 01/28/22

These people worked with me every inch of the way. They helped me find an FFL dealer in my area to send the firearm to. Sent the pistol in the fastest most efficient way possible. The person I was dealing with picked out the best of 3 possibilities and it was perfect, thank you. Communications was great even though I made myself a pest. I could not have asked for a better experience. I would trust them with all my future purchases. They are great. Thank you.

By Jose Pocho Santa on 01/27/22
Nice arm. Excellent service

Glock 21 SF police trade in. Excellent condition. Gunprime FFL service was flawless. Shipping process on time. Recommended

By Jose Pocho Santa on 01/27/22
Nice arm. Excellent service

Glock 21 SF police trade in. Excellent condition. Gunprime FFL service was flawless. Shipping process on time. Recomended

By Greg B. on 01/26/22
Used Glock 21 SF Police Trade In.

Shipped quickly and arrived at my FFL in 3 days.
Gun is in great shape. My only disappointment is that according to the listing and showing only 2 mags, I was under the assumption it was a Gen 3. The unit I received is a Gen 4. Gen 4's come with 3 mags from factory but this one only came with 2.
I was really hoping for a gen 3.
Next time I'll call to get confirmation first.
Irregardless of this, I'll buy from Gunprime again and I highly recommend.

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By Glock 21 on 01/25/22
Great buy

Product a great buy, with 2 mags, and carry case.

By 1st Time with G-Prime on 01/25/22
Not Bad

What really impressed my about my first purchase from Gun Prime was their shipping speed. They shipped the day after I ordered, and it was at my FFL a couple of days later.

I have not shot my new pistol yet, but it appears in very good condition. I expect some holster wear on the slide, and that is what I found. When I tested the included magazines, they did not drop free empty when the mag release was pressed. I tried other G21 surplus mags that i had on hand (and appeared less worn) and they did drop free empty when the mag release was pressed.

At this point, I am very satisfied with my purchase.

By Ken W on 01/24/22
Great buy!

I’m glad I “took the chance”! The 21 showed up and as advertised was in excellent shape! I broke it down for a quick peek and then out back for a function test! Very pleased! All was as advertised! Nice piece!!!

By Lev on 01/24/22
Absolutely gorgeos barelly used G21 arrived as described

My second LE trade in purchase from these guys and both times I lucked out big time, getting almost new pistols.

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By K9 guy on 01/24/22
Good buy

Received this very quickly. Good service from Gunprime! Mine is a Gen 3 21 SF. It is very accurate, and went through 100 rounds without any problem. My only complaint is with the trigger. Even for a Glock, the trigger is very heavy and creepy, and caused me to drop a couple of shots low left. Oddly enough, it did not seem to bother me as much during rapid fire. Overall, a very good buy.

By Cody on 01/24/22

Truly the fastest shipping around. Superb condition and couldn’t be happier.

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