Arisaka Offset Optic Mount 8 RMR Tall - Precision Tactical Accessory for Enhanced Shooting AccuracyArisaka Defense$25.00
Loading...
Loading...
Loading...
Loading...
Arisaka Defense
Arisaka Defense
The Arisaka Defense Offset Mount Optic Plate is a modular red dot mounting solution designed for AR15 shooters who want to run a backup or cowitness optic without sacrificing primary scope performance. This patent-pending system lets you choose between 35- and 45-degree offset positions—giving you flexibility to clear larger turrets on high-magnification scopes or sit closer to more compact glass, all while keeping your red dot zeroed and centered over the bore at lower 1/3 cowitness height. Whether you're setting up a long-range tactical rifle, a competition gun, or a hunting rig with layered optics, this mount adapts to your needs instead of forcing you to compromise.
The engineering here is thoughtful and durable. Arisaka machined the base and plates from 6061-T6 aluminum and finished them with MIL-A-8625 Type III hard coat anodize—the kind of treatment that shrugs off recoil, impacts, and years in the field. The base footprint is compact (1.0" long, sitting 0.180" above your rail), yet it anchors securely with twin recoil lugs and spans three Picatinny slots. At just 1.9 ounces without an optic, it won't bloat your setup. The genius part: base and optic plates are reversible for left or right mounting, and they're sold separately or as a pair, so you can upgrade as your red dot collection grows.
Compatibility is extensive. Arisaka offers standard-height plates (for scope mounts in the 1.5"–1.8" range) and tall-height plates (1.9"–2.2") to mate with everything from Aimpoint Micro and Acro to Trijicon RMR and SRO, Holosun 407C/507C/508T, Leupold Delta Point Pro, SIG Romeo, Swampfox, and more. The plates are sold as a system—you pick the one that fits your optic—so measure twice before ordering. Included: IP20 and IP27 Torx Plus bit drivers for tool-free installation and adjustment.
| Brand | Arisaka Defense |
| Base Length | 1.0" |
| Height Above Rail | 0.180" |
| Weight (without optic) | 1.9 oz |
| Picatinny Slot Count | 3 (twin recoil lugs + clamping screw) |
| Material | 6061-T6 aluminum |
| Finish | MIL-A-8625 Type III hard coat anodize |
| Mounting System | AR15 top rail Picatinny |
| Offset Angles | 35° or 45° (selectable) |
| Mounting Side | Reversible (left or right) |
| Tools Included | IP20 and IP27 Torx Plus bit drivers |
Compatibility depends on your scope mount height and which optic plate you select. Standard-height plates (1.5"–1.8" scopes) include mounts for Aimpoint Micro (T1/T2/H1/H2), Trijicon RMR and SRO, Holosun 407C/507C/508T, Leupold Delta Point Pro, SIG Romeo Zero and Romeo 4/5, Swampfox Kingslayer/Sentinel/Liberty/Justice, Docter, Eotech MRDS, Vortex Venom/Viper, Burris Fastfire III, Meopta, Insight, JPoint, and Shield RMS/RMSc. Tall-height plates (1.9"–2.2" scopes) cover the same optics but in taller configurations. Confirm your scope height and optic type before ordering.
Yes. The base and optic plates are reversible, so you can flip the assembly to mount on either the left or right side of your AR15's top rail.
No. The base and optic plates are sold separately or as a combination. This modular approach lets you purchase the base once and then add or swap plates as you acquire new red dot sights over time.
The 35-degree position brings the red dot sight closer to your primary scope, useful when your scope has a slimmer profile or smaller turrets. The 45-degree position offers greater clearance around larger turrets or high-magnification scopes with wider bodies. You select which angle suits your setup.
The Arisaka Defense Offset Mount Optic Plate is a modular red dot mounting solution designed for AR15 shooters who want to run a backup or cowitness optic without sacrificing primary scope performance. This patent-pending system lets you choose between 35- and 45-degree offset positions—giving you flexibility to clear larger turrets on high-magnification scopes or sit closer to more compact glass, all while keeping your red dot zeroed and centered over the bore at lower 1/3 cowitness height. Whether you're setting up a long-range tactical rifle, a competition gun, or a hunting rig with layered optics, this mount adapts to your needs instead of forcing you to compromise.
The engineering here is thoughtful and durable. Arisaka machined the base and plates from 6061-T6 aluminum and finished them with MIL-A-8625 Type III hard coat anodize—the kind of treatment that shrugs off recoil, impacts, and years in the field. The base footprint is compact (1.0" long, sitting 0.180" above your rail), yet it anchors securely with twin recoil lugs and spans three Picatinny slots. At just 1.9 ounces without an optic, it won't bloat your setup. The genius part: base and optic plates are reversible for left or right mounting, and they're sold separately or as a pair, so you can upgrade as your red dot collection grows.
Compatibility is extensive. Arisaka offers standard-height plates (for scope mounts in the 1.5"–1.8" range) and tall-height plates (1.9"–2.2") to mate with everything from Aimpoint Micro and Acro to Trijicon RMR and SRO, Holosun 407C/507C/508T, Leupold Delta Point Pro, SIG Romeo, Swampfox, and more. The plates are sold as a system—you pick the one that fits your optic—so measure twice before ordering. Included: IP20 and IP27 Torx Plus bit drivers for tool-free installation and adjustment.
| Brand | Arisaka Defense |
| Base Length | 1.0" |
| Height Above Rail | 0.180" |
| Weight (without optic) | 1.9 oz |
| Picatinny Slot Count | 3 (twin recoil lugs + clamping screw) |
| Material | 6061-T6 aluminum |
| Finish | MIL-A-8625 Type III hard coat anodize |
| Mounting System | AR15 top rail Picatinny |
| Offset Angles | 35° or 45° (selectable) |
| Mounting Side | Reversible (left or right) |
| Tools Included | IP20 and IP27 Torx Plus bit drivers |
Compatibility depends on your scope mount height and which optic plate you select. Standard-height plates (1.5"–1.8" scopes) include mounts for Aimpoint Micro (T1/T2/H1/H2), Trijicon RMR and SRO, Holosun 407C/507C/508T, Leupold Delta Point Pro, SIG Romeo Zero and Romeo 4/5, Swampfox Kingslayer/Sentinel/Liberty/Justice, Docter, Eotech MRDS, Vortex Venom/Viper, Burris Fastfire III, Meopta, Insight, JPoint, and Shield RMS/RMSc. Tall-height plates (1.9"–2.2" scopes) cover the same optics but in taller configurations. Confirm your scope height and optic type before ordering.
Yes. The base and optic plates are reversible, so you can flip the assembly to mount on either the left or right side of your AR15's top rail.
No. The base and optic plates are sold separately or as a combination. This modular approach lets you purchase the base once and then add or swap plates as you acquire new red dot sights over time.
The 35-degree position brings the red dot sight closer to your primary scope, useful when your scope has a slimmer profile or smaller turrets. The 45-degree position offers greater clearance around larger turrets or high-magnification scopes with wider bodies. You select which angle suits your setup.