Arisaka Defense
OFFSET OPTIC MOUNT – BLACK
Item # ARIS OOM-BASE MSRP $100.00FREE SHIPPING
PRODUCT DETAILS
TECH SPECS:
Precision-Engineered 35°/45° Modular Mount to Add an Offset Red Dot
Elevate your AR rifle setup with the Arisaka Offset Optic Mount—a rugged, ultra-low-profile platform that allows mounting your red dot sight at a 35° or 45° offset without additional adapters. Expertly crafted in the USA from 6061-T6 aluminum and finished in MIL-A-8625 Type III hard-coat anodizing, this mount preserves a low one-third co-witness with your primary optic and maintains perfect vertical alignment over the bore in both positions
Key Features
-
Adjustable Offset Angles: Choose 35° (closer clearance) or 45° (to clear larger turrets) by simply reversing the stem during installation
-
Ultra Compact & Lightweight: Just 1″ long, occupies three Picatinny slots, and weighs ~1.9?oz—even with standard plate installed
-
Modular & Reversible: Designed for ambidextrous mounting—reverse the base and plate to use on the left or right side of your rail
-
Consistent Optic Height: Maintains optic height and centerline over bore at both angles for reliable sighting during cant and transitions
-
Highly Compatible: Works with a wide range of red dot sights when used with the correct snap-in optic plate—sold separately. Compatible optics include Trijicon RMR/SRO, Aimpoint Micro, Holosun, SIG Romeo, Vortex Venom/Viper, Leupold DPP, and C-More
-
Premium Construction: Base and plates CNC-machined from 6061-T6 aluminum and finished with MIL-A-8625 Type III hard-coat anodize for durability and corrosion resistance
-
Made in the USA: Designed and manufactured domestically and covered under U.S. Patent No. 11,067,365
In the Box
-
Arisaka Offset Optic Mount Base (Black)
-
Your choice of optic-compatible plate (must purchase separately unless bundled)
-
Torx-plus IP20 & IP27 bit drivers
-
Installation instructions and torque specs included
Ideal For
-
Users running a primary magnified optic who want fast-use red dot backup without removing their main scope
-
Left- or right-handed shooters looking for modular, mirrored mounting setups
-
Precision shooters needing consistent vertical alignment and cheek weld at offset angles
Configuration Notes
-
Choose Standard Height Plates (1.5″–1.8″) or Tall Plates (1.9″–2.2″) to match your optic’s mounting height
-
Consult listed compatibility tables to select the correct plate for your red dot model
-
Recommended torque values: Picatinny base clamp set at 55?in-lb; plate stem screws at 30?in-lb; optic-to-plate screws per optic manufacturer (generally not exceeding 20?in-lb)
With superior build quality, thoughtfully engineered geometry, and US-made precision, the Arisaka Defense Offset Optic Mount – Black is the premium solution for shooters demanding seamless offset usability.
| Specification | Details |
|---|---|
| Manufacturer | Arisaka Defense |
| Product Type | Offset Optic Mount |
| Offset Angle | Configurable to 35° or 45° (reversible stem) |
| Mounting Interface | Picatinny (1913) – requires 3 slots |
| Material | 6061-T6 Aluminum |
| Finish | MIL-A-8625 Type III Hard Coat Anodized |
| Weight | ~1.9 oz (with standard height plate) |
| Mount Length | 1.0 inch |
| Mount Height | Varies based on optic plate (Standard or Tall plates available separately) |
| Compatibility | Accepts modular Arisaka optic plates for: RMR/SRO, DPP, Aimpoint Micro, Holosun, SIG Romeo, Vortex Venom/Viper, C-More, and more |
| Orientation | Ambidextrous – reversible for left or right-side offset |
| Made in USA | Yes |
| Patent | U.S. Patent No. 11,067,365 |
| Includes | Mount base, mounting hardware, Torx bits, instructions |
| Recommended Torque | Clamp screws: 55 in-lb, Stem screws: 30 in-lb, Optic: per manufacturer specs |
Questions 0
Ask a QuestionProven Arms & Outfitters A bolt-action rifle requires the shooter to manually operate a bolt to load a round, eject the spent casing, and chamber the next round. In contrast, a semi-automatic rifle is designed to automatically eject the spent casing and chamber a new round with each pull of the trigger. Semi-automatic rifles offer faster follow-up shots, while bolt-action rifles are typically more accurate due to their design.
SORT BY MOST RECENT
No Customer Review on this product
PRODUCT DETAILS
TECH SPECS:
Precision-Engineered 35°/45° Modular Mount to Add an Offset Red Dot
Elevate your AR rifle setup with the Arisaka Offset Optic Mount—a rugged, ultra-low-profile platform that allows mounting your red dot sight at a 35° or 45° offset without additional adapters. Expertly crafted in the USA from 6061-T6 aluminum and finished in MIL-A-8625 Type III hard-coat anodizing, this mount preserves a low one-third co-witness with your primary optic and maintains perfect vertical alignment over the bore in both positions
Key Features
-
Adjustable Offset Angles: Choose 35° (closer clearance) or 45° (to clear larger turrets) by simply reversing the stem during installation
-
Ultra Compact & Lightweight: Just 1″ long, occupies three Picatinny slots, and weighs ~1.9?oz—even with standard plate installed
-
Modular & Reversible: Designed for ambidextrous mounting—reverse the base and plate to use on the left or right side of your rail
-
Consistent Optic Height: Maintains optic height and centerline over bore at both angles for reliable sighting during cant and transitions
-
Highly Compatible: Works with a wide range of red dot sights when used with the correct snap-in optic plate—sold separately. Compatible optics include Trijicon RMR/SRO, Aimpoint Micro, Holosun, SIG Romeo, Vortex Venom/Viper, Leupold DPP, and C-More
-
Premium Construction: Base and plates CNC-machined from 6061-T6 aluminum and finished with MIL-A-8625 Type III hard-coat anodize for durability and corrosion resistance
-
Made in the USA: Designed and manufactured domestically and covered under U.S. Patent No. 11,067,365
In the Box
-
Arisaka Offset Optic Mount Base (Black)
-
Your choice of optic-compatible plate (must purchase separately unless bundled)
-
Torx-plus IP20 & IP27 bit drivers
-
Installation instructions and torque specs included
Ideal For
-
Users running a primary magnified optic who want fast-use red dot backup without removing their main scope
-
Left- or right-handed shooters looking for modular, mirrored mounting setups
-
Precision shooters needing consistent vertical alignment and cheek weld at offset angles
Configuration Notes
-
Choose Standard Height Plates (1.5″–1.8″) or Tall Plates (1.9″–2.2″) to match your optic’s mounting height
-
Consult listed compatibility tables to select the correct plate for your red dot model
-
Recommended torque values: Picatinny base clamp set at 55?in-lb; plate stem screws at 30?in-lb; optic-to-plate screws per optic manufacturer (generally not exceeding 20?in-lb)
With superior build quality, thoughtfully engineered geometry, and US-made precision, the Arisaka Defense Offset Optic Mount – Black is the premium solution for shooters demanding seamless offset usability.
| Specification | Details |
|---|---|
| Manufacturer | Arisaka Defense |
| Product Type | Offset Optic Mount |
| Offset Angle | Configurable to 35° or 45° (reversible stem) |
| Mounting Interface | Picatinny (1913) – requires 3 slots |
| Material | 6061-T6 Aluminum |
| Finish | MIL-A-8625 Type III Hard Coat Anodized |
| Weight | ~1.9 oz (with standard height plate) |
| Mount Length | 1.0 inch |
| Mount Height | Varies based on optic plate (Standard or Tall plates available separately) |
| Compatibility | Accepts modular Arisaka optic plates for: RMR/SRO, DPP, Aimpoint Micro, Holosun, SIG Romeo, Vortex Venom/Viper, C-More, and more |
| Orientation | Ambidextrous – reversible for left or right-side offset |
| Made in USA | Yes |
| Patent | U.S. Patent No. 11,067,365 |
| Includes | Mount base, mounting hardware, Torx bits, instructions |
| Recommended Torque | Clamp screws: 55 in-lb, Stem screws: 30 in-lb, Optic: per manufacturer specs |
SORT BY MOST RECENT
No Customer Review on this product
Questions 0
Ask a QuestionProven Arms & Outfitters A bolt-action rifle requires the shooter to manually operate a bolt to load a round, eject the spent casing, and chamber the next round. In contrast, a semi-automatic rifle is designed to automatically eject the spent casing and chamber a new round with each pull of the trigger. Semi-automatic rifles offer faster follow-up shots, while bolt-action rifles are typically more accurate due to their design.