The Leupold Open Range Rimfire 1-piece base is a no-tap mounting solution for most .22 rimfire rifles with 11mm or 3/8-inch dovetail rails (Leupold part no. 184809). It is precision machined from aircraft-grade aluminum and is designed to be used with any size cross-slot rings, so you can choose the ring height and diameter your scope needs. It is made in the USA. It is a simple way to put a good scope on a rimfire plinker, trainer or small-game rifle.

Key Specifications

• The base is designed for .22 rimfire rifles, and Leupold says it suits most of them.
• It clamps to 11mm or 3/8-inch dovetail rails, a common rimfire interface.
• It is a no-tap design, so no drilling or tapping of the receiver is needed.
• It is a one-piece base for a continuous mounting surface.
• It works with any size cross-slot rings, so ring choice stays open.
• It is precision machined aircraft-grade aluminum, which keeps the weight low.
• It weighs 2.6 ounces.
• It has no built-in cant.
• It is made in the USA by Leupold.

Frequently Asked Questions

Which rifles does this base fit? It is made for most .22 rimfire rifles with 11mm or 3/8-inch dovetail rails.

What rings do I use with it? Leupold says it is designed to be used with any size cross-slot rings.

Does it need drilling? No. It is a no-tap design that mounts to the dovetail.

Buy the Leupold Open Range Rimfire 1-Piece Base, 11mm/3/8-Inch Dovetail

A rimfire rifle deserves a solid scope mount, and a one-piece aluminum base keeps the weight down. Order it from our Lubbock, Texas gun shop for fast shipping, and see more scope bases.