Skip to main content

Glock 20 Sights

Best selection of OEM & compatible Glock 20 sights for sale. Complete range of sighting options for the Glock 20 platform, from factory iron sights to fiber-optic, night-sight & mini red-dot solutions, easily identify sight type, mounting style & basic compatibility, while comparing the live prices.

Recent coupons (10)

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

150FREESHIP

Expiration date Unknown Store Brownells Report

10% Off S&W Firearms (Excl. Apply)

SAVE10

Expiration date Unknown Store Range USA 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

Free HazMat Fee over $99

FH260601

Expiration date 2026-Jun-03 Store Natchez Shooting & Outdoors Report

10% Off Exigent Defense

EXIGENT10

Expiration date Unknown Store BattleHawk Armory Report

11% Off (+ 2% Bucks)

GETET

Expiration date 2026-Jun-05 Store Optics Planet 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

15% Off Magpul Products

MAGPUL15

Expiration date Unknown Store Blackstone Shooting Sports Report

Add a Coupon

Recent comments

Bucket Hat UPF 50+ Boonie Hat Foldable for Men Women (20 colors) from - $9.01

Cheap Chinese made junk. Find yourself a real US government issue hat.

34 min 15 sec ago ByNatch
Eotech G45 5x Magnifier for All Holographic Weapon Sight - $499.99

shows up as 549 for me.

37 min 57 sec ago ByDarktidings
CZ Shadow 2 Compact PBJ Tan / Purple 9mm 4" Barrel 15-Rounds - $1596.24

Dear God, why? That is hideous.

41 min 35 sec ago ByMeatTreatforthePetite
Burris Co FastFire E Green-Dot Reflex Sight 1x 3.5 MOA - $169.99 + Free Shipping

How big is this chunky boy in comparison to a Holosun 407? It looks like a proper mailbox

1 hour 32 min ago Byzyang
50% off CVLIFE Soft Rifle Case Double Long Gun Bag,with Lockable Zipper and Backpack Strap,Rifle Backpack Rifle Bag Gun Case for Outdoor Hunting Shooting Range w/code FTWQOHKM - $33

Does not work fir any size or color

1 hour 33 min ago Bybello1077
50% off CVLIFE Soft Rifle Case Double Long Gun Bag,with Lockable Zipper and Backpack Strap,Rifle Backpack Rifle Bag Gun Case for Outdoor Hunting Shooting Range w/code FTWQOHKM - $33

Works for the 36" FDE and 42" FDE, but not the 46" in any color.

1 hour 40 min ago Bysjlplat
Remington 23728 UMC Full Metal Jacket FMJ 115 Grain 9mm Luger/Parabellum - 1000 Rd - $199.99

Sorry. My error. In my senility I overlooked your "lightweight" spring use. Those springs would certainly throw some codes and cause all sorts of experimentation. I'm still curious why the 124 Rem fails when the factory specs list identical velocities. Maybe the test barrel was longer. I'll have to chrono some. I have probably 15-20 9mm's on the rack, mostly alloy Sig and Beretta, some CZ and HK, Glock, S&W, FNH, etc., in hammer, striker and external extractor 1911 designs, use only duty weight springs, no subs or suppressors, no steel case, and don't shoot them as much anymore. They tend to be boringly reliable with major brands and reloads, with accuracy as the only variable. The Blazer was the only brand causing problems, and that out of a stiff M17. Oh, and a S&W SD9 which was such a POS that it became a test dummy.

2 hours 25 min ago Bynotsecretservice
Federal Champion BYOB Rimfire Ammunition 22 LR 36 gr. CPHP 1260 fps 1375/ct - $85.49 after code: DG5

Shipping is too high

3 hours 57 min ago ByJoshwilk18
34% off 1600 Lumens Rifle Light Laser IR 3-in-1 Combo, Ar Light Laser Combo Magnetic Rechargeable with Remote Switch, Aluminum Flashlight for Rifle Compatible with Picatinny and M-Rail w/code VS2PZ2KD

Code does not give 34 percent off

4 hours 57 min ago ByDonavonK
ZEROHAWK EM1 Enclosed Red Dot Sight with MOS/RMR to RMSc Adapter Plate, 2 & 32 MOA Multi Reticle System Micro Reflex Sight for Pistol, RMSc/K Footprint Compatible, Parallax-Free Sight (Black) - $149.99

Knock off osight? Idk why someone would buy this when those exist and Olight has the best warranty in the business.

6 hours 41 min ago Bybaseballplerrr