What can be done if the front sight moves side-to-side?

The front sight comes with a short screw, and a screw that's a tad bit longer. I also have a gen4 g19. I tried the longer screw first and it bottomed out, so I had to use the shorter (correct) screw and everything tightened up just fine. No side to side movement so, not sure why you're having problems since we both have the same exact gun, same exact sights. Maybe you didn't notice that this sight comes with 2 different length screws for the front sight??

are these night sights

Yes they glow green at night just as bright green as the fiberoptics do during the day. The night sights are placed in the back of the green fiberoptics. you will be surprised at the brightness of this sight day and night. I Love Mine and would not trade them for any other sight.

It states that there is a black option and a green option for these sights. What does it mean by Black sights?

Rear sight will be black , front will still have tritium sight.

Can I install it on my G21 and G22 gen4 without any modification?

The Glock G21 is a large frame gun and the G22 is a small frame Glock pistol, The G21 has a slightly wider slide and longer magazine well to accomidate the longer 10mm & 45acp cartridges, but the dovetail in the slide and the slot for the front sight are identical allowing the small frame and large frame Gen 1 through Gen 4 Glocks to share common sights. The current Glock rear sight tool will change sights on all small and large receiver (frame) guns as will the front sight tool. I have changed sights on both small and large frame Glocks.

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TRUGLO TFO Tritium & Fiber-Optic Handgun Sight | Snag-Resistant Front & Rear Bright Night Sights, Compatible with Glock Handguns

Product ID: 1507608

Details

Brand
TRUGLO
Color
Green Front /
Compatible Devices
Handgun
Item Weight
22.68 g
Magnification Maximum
1 x
Magnification Minimum
1 x

🎯Precision fiber-optic aiming

🔋Battery-free 24/7 visibility

🛡️Durable CNC-machined steel

€ 171.61

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Description

🎯 Lock on your target day or night — never miss the shot again!

RUGGED SNAG RESISTANT - CNC-machined steel with Nitride Fortress Finish ensures durability and smooth holster fit.
STEALTH MODE VISIBILITY - Concealed fiber-optic design keeps your sight invisible to targets while maximizing your view.
UNMATCHED 24 7 BRIGHTNESS - Patented TFO tech delivers consistent glow without batteries or external light.
EFFORTLESS DAY NIGHT USE - Fiber-optic and tritium combo guarantees bright aiming points in any lighting condition.
GLOCK OPTIMIZED COMPATIBILITY - Fits a wide range of Glock models for seamless integration and enhanced accuracy.

The TRUGLO TFO Tritium & Fiber-Optic Handgun Sight is a precision-engineered, battery-free sight system designed specifically for Glock handguns. Featuring patented TFO technology, it provides bright, consistent aiming points 24/7 by combining tritium illumination with fiber-optic light gathering. Built from CNC-machined steel with a protective Nitride Fortress Finish, it offers rugged durability and a snag-resistant profile that fits standard holsters. Compatible with multiple Glock models, this sight enhances accuracy and stealth visibility for professional shooters and enthusiasts alike.

Specifications

ASIN	B001ASZSVW
Best Sellers Rank	#75,892 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #180 in Gun Sights
Brand Name	TRUGLO
Color	Green Front / Green Rear
Compatible Devices	Handgun
Customer Reviews	4.7 4.7 out of 5 stars (2,252)
Global Trade Identification Number	00788130080764
Hand Orientation	Ambidextrous
Included Components	Sights
Item Display Dimensions	5.75 x 3.75 x 0.75 inches
Item Display Weight	4.8 ounces
Item Highlight	For Glock Pistols
Item Type Name	TFO Sights
Item Weight	22.68 g
Lens Color	Green
Magnification Maximum	1 x
Magnification Minimum	1 x
Manufacturer	TruGlo
Manufacturer Part Number	TG131GT1
Material Type	Metal
Model Name	TFO Tritium and Fiber-Optic Handgun Sights for Glock Pistols
Model Number	TFOGLK
Mounting Type	Rail Mount
Number of Items	1
Product Style	Glock Low Set
Sport Type	Airsoft, Hunting
Thread Type	UNC
UPC	788130080764
Unit Count	1 Count
Warranty Description	Limited

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€ 171.61

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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