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Compare Glock 20 vs. Glock 40 Gen 4

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

	Image
Glock	Brand	Glock
Glock 20	Model	Glock 40 Gen 4
Firearm	Category	Firearm
10mm	Caliber	10mm
10, 15	Capacity	Standard: 15; Optional: 10
Pistol	Type	Pistol
-	Action	Semi Auto
4.61"	Barrel Length	6.02"
8.07"	Overall Length	9.49"
29.81 - 30.69 oz	Weight	35.45 oz
Glock 20 V MOS Frisco Guns MAP Buy Glock 20 V MOS Frisco Guns MAP Buy Glock 20 Gen 4 Guns.com Used Guns $614.99 Buy Glock G20 Gen 5 MOS Mile High Shooting $620.00 Buy Glock V-Series Model 20 Locked Loaded $652.04 Buy Show all	Lowest Prices Online	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

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Recent comments

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

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

57 min 43 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.

2 hours 27 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.

3 hours 13 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 50 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 58 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

4 hours 16 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.

4 hours 35 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.

4 hours 41 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 54 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.

6 hours 15 min ago ByEasyCZ