Image unavailable
Offset Optic Mount - Offset Plate, 1913 Picatinny Rail Adapter, 40 Degrees Only
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$25.00
View on Brownells
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 430104533
Overview
This modular offset mount is built for AR15 setups that pair a red dot with a primary optic, giving the shooter a choice of 35 or 45 degree positioning without adding extra components. The 35 degree option keeps the sight closer to slimmer scopes, while the 45 degree option offers more room around larger turrets or higher-magnification optics. Mounted to the top Picatinny rail, it is intended to keep the offset optic centered over the bore and maintain a lower 1/3 co-witness height when the rifle is canted. For hunters and field shooters running a compact backup sight on a scoped rifle, it offers a practical way to set up a fast transition optic.
Why Hunters Choose the Arisaka Defense
Modular Design
Lets you choose 35 or
35 Degree
Position places the red dot
45 Degree
Position provides added clearance around
Attaches Top
Picatinny rail of an AR15
Maintains Lower
1/3 co-witness height when the
Key Features
- Modular offset optic mount for a red dot sight
- Selects 35 or 45 degree offset positions without extra components
- 35 degree position sits closer to slimmer, smaller scopes
- 45 degree position adds clearance around wider turrets or larger scopes
- Attaches to the top Picatinny rail of an AR15 rifle
- Maintains centered bore alignment and lower 1/3 co-witness height when canted
Best Used For
- AR15 users setting up a red dot for close-range transitions alongside a primary scope
- Hunters running slimmer, smaller scopes and wanting a closer offset optic position
- Shooters using larger or higher-magnification scopes who need added clearance around turrets
- Users who want a modular offset mount without adding extra components
- AR-15 owners looking for a canted red dot setup that maintains lower 1/3 co-witness height
Specifications
| Additional Components Required | false |
|---|---|
| Attachment Location | Top Picatinny rail of an AR15 rifle |
| Centered Over Bore | true |
| Co Witness Height | Lower 1/3 co-witness height |
| Compatibility | Red dot sight |
| Mount Type | Offset optic mount |
| Offset Position | 40 degrees only |
| Patent Pending | true |
| Rail Interface | 1913 Picatinny rail adapter |
Pros
- Modular design lets you choose 35 or 45 degree offset without extra components.
- 35 degree position places the red dot closer to slimmer, smaller scopes.
- 45 degree position provides added clearance around wider turrets and larger scopes.
- Attaches to the top Picatinny rail of an AR15 rifle.
- Maintains lower 1/3 co-witness height when the rifle is canted.
Considerations & Trade-offs
- This mount is designed for AR15 top Picatinny rails, so it is not a universal solution for other platforms or rail types.
- The offset position is limited to the included 35 or 45 degree options, so it does not offer finer angle adjustment.
- The 35 degree setting is intended to sit closer to slimmer, smaller scopes, while the 45 degree setting adds clearance for wider turrets or larger, higher-magnification scopes; choosing the wrong position can affect fit around your primary optic.
- This is an offset plate/adapter component, so it is meant to work as part of a red dot mounting setup rather than as a complete optic system on its own.
Suggested Comparisons
- AR-15 optic mounting accessories
- Picatinny rail adapters
- Offset red dot sight mounts
- Modular scope and optic mounting solutions
Suggested Accessories
- Red dot sight
- Picatinny rail accessory
- AR15 mounting hardware
- Optic mounting plate
Frequently Asked Questions
What mounting positions does this offset optic mount offer?
The product description says it allows the user to select a 35 or 45 degree offset position for a red dot sight without needing additional components.
Is this mount intended for an AR15?
Yes. The description says it is designed to attach to the top Picatinny rail of an AR15 rifle.
What is the difference between the 35 degree and 45 degree positions?
According to the description, the 35 degree position brings the red dot sight closer to slimmer, smaller scopes, while the 45 degree position provides additional clearance around wider turrets or larger, higher magnification scopes.
Does the optic stay centered over the bore when using the offset sight?
Yes. The description states that when the rifle is canted to use the offset red dot sight, the optic remains centered over the bore and maintains a lower 1/3 co-witness height.
Does this product include everything needed for installation?
The description says the mount provides the offset position without requiring additional components, but it does not list the full installation contents or any included accessories.