Will this fit a CZ 457?

If the seller/manufacturer has stated the specifications correctly, it should "fit". AFAIK, 11mm on a CZ 457 is still 11mm on an air rifle. A few IMPORTANT caveats to keep in mind: (1:) I've not tried this product & do not "vouch" for it. (2.) When a mfr refuses to provide dimensional drawings, you SHOULD question their claims! (3.) Wrt the CZ 457, you really should COMPARE THIS to other products offered - note the diffs.

Will this work for gamo magnum g2 or maxxus g2?

Don’t know but it is 15mm bottom and 20mm top I use it on a crossbow

Has anyone got this to fit on a Ruger break barrel air rifle? The top of the dovetail is curved, not flat.

that should not matter as all of my guns with a 11mm rail are curved as in cut into the side of a round tube

Will it mount a 20mm red dot ?

Yes, it will mount a red dot scope with a picatinny base. In fact, I have a red dot scope on a Lonsel adapter on my Weihrauch HW97K air rifle. It puts 22 cal. pellets in the "X" Ring of the target, one after another in the same hole: very accurate..... This is a sturdy, well constructed product. D.W.

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LONSEL Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter

Product ID: 339120945

📏Converts 11mm dovetail to 21mm Picatinny rail

⚙️Low profile 0.59" riser with 9-slot rail

🛠️Aircraft-grade aluminum alloy

€ 14.33

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Description

🔧 Elevate your gear game — convert, mount, and dominate with precision!

SEAMLESS RAIL CONVERSION - Effortlessly transform your 11mm dovetail mount into a versatile 21mm Picatinny rail, expanding your optics and accessory options.
VERSATILE MOUNTING PLATFORM - Features 9 Picatinny slots to accommodate scopes, red dots, and other tactical accessories with precision.
OPTIMIZED LOW PROFILE DESIGN - Maintain a sleek, tactical look with a 0.59" riser height that balances elevation without bulk.
PRECISION ENGINEERED DURABILITY - Crafted from premium aircraft-grade aluminum with a sleek black hard coat anodize finish for unmatched strength and longevity.
TOOL ASSISTED SECURE INSTALLATION - Includes an Allen wrench and locking screws for a rock-solid, shake-free mount that stays put under pressure.

The LONSEL Dovetail to Picatinny Rail Adapter is a precision-machined, aircraft-grade aluminum mount that converts 11mm dovetail rails to 21mm Picatinny rails. Featuring a low-profile 0.59" riser and 9-slot rail, it offers versatile mounting options for scopes and accessories. Easy to install with included tools, it ensures a secure, shake-free fit for professional-grade tactical setups.

Specifications

ASIN	B0982V87YJ
Best Sellers Rank	#5,518 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Sporting Optics Mounts
Brand Name	LONSEL
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (3,418)
Date First Available	June 28, 2021
Item Package Dimensions L x W x H	5.83 x 3.15 x 0.75 inches
Manufacturer	LONSEL
Material	Aluminum
Package Weight	0.06 kg
Style	1 PACK - 9 Slots

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€ 14.33

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

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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