Weaver 3/8" Dovetail to Weaver Rail Adapter – Rimfire and Airgun Mount Conversion

The Weaver 3/8" to Weaver Style Adapter converts 3/8" dovetail grooves—commonly found on rimfire rifles, airguns, and some shotguns—into a full Weaver-style base for mounting standard rings and tactical accessories. This low-profile aluminum adapter clamps directly to existing dovetail grooves without drilling or permanent modification, giving you immediate compatibility with Weaver and Picatinny rings.

CNC-machined from aircraft-grade aluminum with a matte black anodized finish. Installs with hex screws for a secure, repeatable mount. Ideal for .22 LR rifles, pellet guns, and other firearms with 3/8" grooves that need modern optics mounting solutions. Lightweight and unobtrusive.

• Type: Dovetail-to-Weaver adapter base
• Compatible With: 3/8" dovetail grooves (rimfire rifles, airguns, some shotguns)
• Material: Aircraft-grade aluminum, matte black anodized
• Mounting Standard: Weaver-style rail (accepts Weaver and Picatinny rings)
• Installation: Clamp-on design with hex screws, no gunsmithing required
• Use: Optic mounting base conversion for rimfire and airgun platforms