Warne Vapor V421M Medium 1" Tube Black Aluminum Rimfire Rifle Scope Mount

The Warne Vapor V421M is a medium-height rimfire scope mount built to do the job without breaking the bank. If you're running a .22 or other rimfire on a rifle with a 3/8" dovetail, this one-inch tube mount delivers solid, repeatable performance at a price that won't sting. Warne engineered the Vapor line to be stronger and more reliable than other budget options in its class, and the proof is in the field—hunters and shooters have been trusting these mounts for years.

Built from lightweight aluminum and finished in black, the V421M keeps weight off your gun while staying tough enough for real use. The engineering is straightforward: solid mechanical design, proper tolerances, and American manufacturing. You get a mount that holds zero, accepts scopes with objectives up to 42mm, and installs without fuss on your rimfire's dovetail system. Whether you're setting up a squirrel rifle, a .22 trainer, or a precision rimfire build, this is the kind of no-nonsense gear that works.

Warne backs their work with a lifetime warranty, and the fact that they still make these in the USA matters—you're buying something built to last, not engineered to fail after a season.

Key Features

• One-inch tube design for standard modern scope rings and mounts
• Medium height—ideal for proper eye relief and ergonomics on rimfire rifles
• Fits 3/8" rimfire dovetail rails
• Lightweight aluminum construction reduces added weight
• Accepts scopes with objectives up to 42mm
• Field-proven design with decades of real-world use
• Made in the USA
• Lifetime warranty

Specifications

Frequently Asked Questions

Will this mount fit my rimfire rifle?

The Warne Vapor V421M is designed for rifles with a 3/8" dovetail rail—the standard on most rimfire guns. Check your rifle's rail specification to confirm compatibility before ordering.

What scope magnifications and sizes work with this mount?

The one-inch tube accepts standard one-inch scope rings. It's rated for objectives up to 42mm, so you have plenty of flexibility in choosing a scope that matches your shooting style and distance.

How do I know if medium height is right for my setup?

Medium height is the most common choice for rimfire rifles with standard actions and rails. It provides proper eye relief and shooter comfort for both sitting and prone positions. If you're unsure, check your scope's manufacturer recommendations or reach out to us before you buy.

Is installation difficult?

The Vapor V421M uses a straightforward dovetail mounting system. Field installation is simple with basic tools—no gunsmithing required.