The right rimfire to Picatinny adapter lets you mount modern optics on classic rimfire rifles that use dovetail rails. This guide highlights five reliable adapters that convert 11mm or 3/8″ dovetails to a standard Picatinny rail. Each option prioritizes stability, a low profile, and ample rail length for flexible eye relief and accessory placement. Whether you want red dots, magnifiers, or scopes, these adapters provide solid mounting bases without requiring major gunsmithing.
Summary of Selected Products
| Product | Brand | Key Benefit |
|---|---|---|
| Gotical Low Profile 11mm / 3/8″ Dovetail To Picatinny Rail Adapter Converter | 360 Tactical | Easy dovetail to Picatinny conversion with extended rail length |
| LONSEL Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount | LONSEL | Aircraft-grade aluminum, low profile, flexible optics placement |
| Bontok Dovetail to Picatinny Rail Adapter, 11mm Dovetail to 21mm | Bontok | Upgraded locking screws for solid mounting |
| BVGD Tactical Low Profile 3/8 inch Dovetail to Picatinny Rail Adaptor | BVGD | Two rail lengths for versatile optics mounting |
| UTG .22/Airgun to Picatinny/Weaver Low Pro Snap-in Adaptor | UTG | Snap-in design for quick, secure rail mounting |
Gotical Low Profile 11mm / 3/8″ Dovetail To Picatinny Rail Adapter Converter
The Gotical adapter transitions from 11mm or 3/8″ dovetail rails to a Picatinny rail, enabling scope, red dot, or magnifier mounting. It uses a dovetail mount with a single vertical stop pin and measures 2.8 inches at the base. The Picatinny portion extends about 3.9 inches, offering improved optic placement and eye relief. This design targets rimfire platforms that commonly feature 11mm or 3/8″ dovetails, including certain .22 models and air rifles. The result is a stable, repeatable mounting solution with compatible optics in varied field conditions.
Key features include compatibility with standard Picatinny and Weaver optics, straightforward installation, and a lightweight profile that preserves handling characteristics. Users should confirm rifle compatibility with the specific dovetail dimension before purchase, as some models may vary slightly from the standard rails.
LONSEL Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount
Constructed from aircraft-grade aluminum with a black hard coat anodize, this LONSEL adapter provides a robust, durable conversion from 11 mm dovetail to 21 mm Picatinny rail. It features a base length of 2.94 inches and extends the rail to about 3.94 inches, allowing flexible optics placement. The base accommodates 3/8″ to 7/8″ converter mounts and maintains a low profile at roughly 0.59 inches. The design focuses on stability and repeatability for rimfire platforms, including models with sensitive trigger lines or compact handguards. The combination of precision machining and durable finishing helps preserve zero under recoil and rough field use.
Considerations include ensuring the dovetail width matches the rifle’s rail and verifying the 3/8″ to 7/8″ range supports your action’s mounting hardware. This adapter is well-suited for shooters seeking a balance of rigidity and minimal added height.
LONSEL Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount – 1 Pack – 11 Slots
This low-profile LONSEL version adds 4.72 inches of Picatinny rail across 11 slots, enabling extended mounting options for optics without creating excessive height. It retains the aircraft-grade aluminum construction and black anodize finish for durability. The base length is 2.94 inches with a 0.59-inch riser, designed to fit 11 mm dovetails while using a 3/8″ to 7/8″ converter, offering versatility for a range of .22 rimfire configurations. The design prioritizes snag-free mounting and repeatable alignment for quick optic changes in the field or range environments.
Buyers should note rail length and slot arrangement to ensure compatibility with their optic footprint and windage/elevation slots. This option is ideal for shooters upgrading from conventional iron sights to compact scopes or red dots.
Bontok Dovetail to Picatinny Rail Adapter
The Bontok adapter converts 11 mm dovetail to 21 mm Picatinny rail with a low-profile scope mount design. It measures about 3.94 inches of rail length for flexible optics placement and uses an aircraft-grade aluminum base with a black matte anodized finish. Upgraded built-in locking screws secure the mount, reducing the risk of movement during firing. The included locking mechanism helps maintain alignment across rifling elevations and vibrations, which is particularly valuable for rimfire rifles with tighter tolerances.
Consider the number of slots and space for your optics—this model offers 9-slot capacity to accommodate a typical range of scopes and red dot configurations. It is well-suited for compact 11 mm dovetail receivers found on rimfires and some air rifles alike.
BVGD Tactical Low Profile 3/8 inch Dovetail to Picatinny Rail Adaptor
BVGD’s low-profile adapter converts 11 mm or 3/8″ dovetails to a Picatinny rail with two potential rail lengths. The base length is 2.8 inches, while the extended rail reaches 3.9 inches, providing flexibility for optics placement and eye relief. This model is designed to fit dovetails commonly found on rimfire rifles and airguns, delivering a robust mounting platform for red dots and small scopes. The durable construction and finish are intended to withstand outdoor use and repeated mounting cycles without compromising alignment.
Potential considerations include ensuring the selected version aligns with your rifle’s dovetail width and testing the zero retention with your specific optic’s weight and balance.
UTG .22/Airgun to Picatinny/Weaver Low Pro Snap-in Adaptor
UTG offers a snap-in adaptor designed to convert most .22/airgun rails to Picatinny or Weaver bases. This low-profile, lightweight rail platform features a top slot with spring tension for rapid mounting and removal. The snap-in design is intended to reduce installation time while maintaining reliable engagement with standard rails. It is particularly suitable for shooters who frequently swap optics between rifles or prefer a quick-ready mounting option without tools.
Important notes include verifying compatibility with your specific airgun or rimfire model, as rail dimensions can vary. The snap-in mechanism is best suited for less aggressive recoil profiles and optics with compatible footprint.
M1SURPLUS Adapter Rail Mount
The M1Surplus adapter rail mount converts 3/8″ dovetail grooves to accept 7/8″ Weaver and Picatinny style scopes and accessories. It is designed to fit rifles with factory 3/8″ dovetail grooves, such as Mossberg 702 and Henry Arms 22 lever-action rimfires. The mount enables compatibility with a broad range of optics and accessories, expanding the versatility of traditional rimfire rifles. Its robust aluminum construction emphasizes durability and secure alignment in field conditions.
When selecting this option, confirm that your rifle’s dovetail groove spacing and width align with the adapter’s base; ensure adequate clearance for any charging handles or safety mechanisms at your action’s rear.
Bontok Dovetail to Picatinny Rail Adapter, 11mm Dovetail to 21mm
The Bontok 11mm to 21mm adapter features a 14-slot Picatinny rail up to 6.11 inches long, with a base length of 2.94 inches. The black matte finish and aircraft-grade aluminum construction emphasize durability and rigidity. The adapter includes precision machining to ensure smooth rail engagement and reliable alignment for a variety of optics, from compact red dots to mid-length scopes. This version prioritizes ample rail space for multiple accessories while maintaining a low profile for rimfire rifles.
Consider the weight and length of your optic system, as longer rails can introduce higher front-end weight. Replaceable or installable locking screws help preserve zero during use.
Buying Guide: How to Choose The Right Rimfire To Picatinny Adapter
Key considerations when selecting an adapter include dovetail size compatibility, rail length, and profile height. Confirm whether your rifle’s receiver has 11 mm or 3/8″ dovetail grooves, and match this to the adapter’s base and converter specs. Longer Picatinny rails offer flexibility for placing magnifiers or larger scopes but may add height, potentially affecting cheek weld and stock alignment.
Material and finish influence durability and resistance to wear. Aluminum bodies with black hard coat or anodized finishes provide rigidity and corrosion resistance, though some aluminum adapters can be heavier than polymer alternatives. The presence of locking screws or clamp-style fasteners affects installation security; locking screws reduce the risk of shift under recoil, especially on higher-power rimfire configurations.
Rail length and slot count determine how many optics or accessories you can mount simultaneously. Slotted designs (e.g., 9, 11, or 14 slots) accommodate different footprint widths from red dots to compact scopes. Ensure the adapter’s height, base width, and 3/8″ to 7/8″ converter compatibility align with your rifle’s mounting system, safety levers, and handguard geometry.
Finally, consider installation effort and user experience. Some adapters are tool-free and snap-in, while others require minimal screws or pins. If you anticipate frequent optic changes, prioritize quick-release or locking mechanisms that maintain zero without tools. For hunting, range use, or training, a stable, repeatable mount improves repeatability and confidence across sessions.