Skip to main content

Compare Glock 40 vs. Glock 20SF

Compare gun price, size, weight, capacity and other specifications.

	Image
Glock	Brand	Glock
Glock 40	Model	Glock 20SF
Firearm	Category	Firearm
10mm	Caliber	10mm
Standard: 15+1; Optional: 10	Capacity	10, 15
Pistol	Type	Pistol
Semi Auto	Action	Semi Auto
6.02"	Barrel Length	4.61"
9.49"	Overall Length	8.07"
35.45 oz	Weight	30.51 oz
Glock 40 Gen 4 ADJ MOS Eagle Sports Range $1,199.99 Buy Glock 40 Gen 4 Modular Optic System Eagle Sports Range MAP Buy Glock 40 Gen 4 MOS Rebuilt Locked Loaded MAP Buy Glock 40 Gen 4 MOS Factory Rebuilt Locked Loaded $460.47 Buy Glock 40 Gen 4 MOS Locked Loaded $465.74 Buy Show all	Lowest Prices Online	Glock 20SF Gen 3 (Short Frame) Guns.com $759.99 Buy Glock 20SF Gen 3 (Short Frame) Guns.com $799.99 Buy Glock 20SF Factory Rebuilt BattleHawk Armory $411.79 Buy Glock 20SF Not Just Guns $501.40 Buy Glock 20 SF Tombstone Tactical $538.99 Buy Show all

Compare with other guns

Glock 40

Glock 40

vs

Glock 40 Gen 4

Glock 40 Gen 4

Glock 20SF

Glock 20SF

vs

Glock 29 Gen 4

Glock 29 Gen 4

Glock 40

Glock 40

vs

Glock 29SF

Glock 29SF

Glock 20SF

Glock 20SF

vs

Colt Delta Elite

Colt Delta Elite

Glock 40

Glock 40

vs

FN 510 Tactical

FN 510 Tactical

Glock 20SF

Glock 20SF

vs

Smith & Wesson M&P 10mm

Smith & Wesson M&P 10mm

Recent coupons (10)

13% Off +2% Bucks (excl. apply)

DADDAY

Expiration date 2026-Jun-15 Store Optics Planet Report

Up to 14% OFF Rifle Scopes, Red Dots & Night Vision

SPOTME

Expiration date Unknown Store Optics Planet Report

ARKPROOG

Expiration date Unknown Store BuyAGun.net Report

$150+ Orders Ship Free (Excl. Firearms, Ammo, Reloading, Mag. Packs & Flash Sales)

150FREESHIP

Expiration date Unknown Store Brownells Report

10% Off Most Barrels (Excl. Apply)

BARREL0526

Expiration date Unknown Store MidwayUSA Report

12% OFF Sitewide (Excl. Apply)

JUNE1226

Expiration date Unknown Store AR15Discounts Report

10% Off Exigent Defense

EXIGENT10

Expiration date Unknown Store BattleHawk Armory Report

5% Off PSA Sabre Firearms

scotsman2sabre5

Expiration date 2027-May-25 Store Palmetto State Armory Report

5% Off of PSA's Sabre Line of Products

BEYOND9SABRE5

Expiration date Unknown Store Palmetto State Armory Report

PMC5OFF

Expiration date Unknown Store Ammunition Depot Report

Add a Coupon

Active rebates (10)

Foxtrot Consumer Promotion

Brand Sig Sauer Expiration date 2026-Aug-31

Savage Arms Father's Day Axis $75 Rebate

Brand Savage Arms Expiration date 2026-Jun-30

Silent Summer Rebate

Brand IWI Expiration date 2026-Nov-01

Norma NXD and Safeguard Ammo Rebate

Brand Norma Expiration date 2026-Jul-01

Winchester Summer Firearms Rebate

Brand Winchester Expiration date 2026-Jun-21

Beretta Shotgun Rebate

Brand Beretta Expiration date 2026-Aug-01

Back In Your Holster Revolver Rebate

Brand Colt Expiration date 2026-Jul-01

Gear Up - Free XDM Elite 10mm

Brand Springfield Expiration date 2026-Sep-01

Kimber 2K11 Summer Centennial

Brand Kimber Expiration date 2026-Jul-05

Stoeger STR Rebate

Brand Stoeger Expiration date 2026-Jul-01

Recent comments

Otter Creek Polonium 30 - $439.99 (Add to Cart for Best Price)

Just checked in cart price of $439. Calm down sally.

8 min 48 sec ago Bypallen2270
Otter Creek Polonium 30 - $439.99 (Add to Cart for Best Price)

I did indeed do that and it wasn’t working. Also the $532 was a reduction from a higher price $589 IIRC when added to cart. Looks like this was fixed. Thanks for being a master of the obvious.

1 hour 38 min ago ByStrn19
INLAND Suppressor 22LR BLK Aluminum - $225.99

There needs to be more companies to embrace the maglite styling on cans. The fancy designs add machine time and cost. Give us knurled black tubes.

2 hours 24 min ago Bydeebotres
Glock Factory Handgun Magazine for Glock Model 43X/48 9mm Luger 15/rd Pkg'd - $28.49 w/ code: DG5

can only buy 1..no deal

3 hours 1 min ago ByFreedom777
Kel-Tec PR57 5.7x28mm 4.64" Pistol Black 20rd - $249.99

Can anyone actually see the advantage of having to top load a pistol one by one or with clips?? I'm respectfully curious.They are saying the 21 round capacity is an advantage but just about every other 5.7 pistol have near or the same capacity with mags..so I don't understand why anyone would buy this over say a TISAS 5.7, RUGER 5.7 and PSA 5.7. The other question is what happens if you have a malfunction or failure? How do you clear it fast? You obviously can't strip the mag and clear the round then quickly change mags to stay in the fight if needed.
I'm truly curious. If I missed something about it let me know respectfully

3 hours 9 min ago ByLivinitup1976
EAA Girsan MC1911 10mm Auto 4.4" OD Green 9+1 Rounds - $659.99

Just wish it was optics ready and a double stack high capacity pistol

3 hours 27 min ago ByLivinitup1976
Feyachi HL-20 Pistol Light 1500 Lumen Upgrade LED Weapon Light Compact Rail Mounted Handgun Tactical Flashlight Rail Locating Keys for Picatinny, Sand - $24.54

I've got no issues with mine. Lives on the pic rail on my 9" AR22 so the light is about flush with the end of the hand guard. The switch falls right where my fingers are while gripping. A couple thousand rounds and no issues. Have hit some barriers, chairs and tables. Still lights up. And the fde isn't too far off my handguard's color. So it looks decent too. I do like pistol lights on SBR's due to hand placement and use.

3 hours 46 min ago By_rcro
Feyachi HL-20 Pistol Light 1500 Lumen Upgrade LED Weapon Light Compact Rail Mounted Handgun Tactical Flashlight Rail Locating Keys for Picatinny, Sand - $24.54

I've got no issues with mine. Lives on the pic rail on my 9" AR22 so the light is about flush with the end of the hand guard. The switch falls right where my fingers are while gripping. A couple thousand rounds and no issues. Have hit some barriers, chairs ans tables. Still lights up. And the fde isn't too far off my handguard's color. So it looks decent too. I do like pistol lights on SBR's due to hand placement and use.

3 hours 52 min ago By_rcro
Glock Factory Handgun Magazine for Glock Model 43X/48 9mm Luger 15/rd Pkg'd - $28.49 w/ code: DG5

Not a bad deal considering how hard these are to find in stock currently.

5 hours 5 min ago Bycc60
Magpul MBUS Gen 3 Sight Set - Black - $79.95

Hardly a deal. These have been on sale for $65 and $70 before.

5 hours 26 min ago ByEasyCZ