FFL-compliant checkout Live inventory verification Pickup / transfer ready
(800) 551-2791 beverlyhillsguns.com
0

Your cart is empty

Total $0.00
Sign In Create Account
Browse Beverly Hills Guns
Navigate by category, brand, and customer workflow.
Training, appointments, transfers, and company pages.
Store & Compliance
Built for modern storefront browsing without losing the firearm compliance workflow behind the scenes.
  • Live inventory validation before checkout
  • Workflow-aware store pickup and transfer routing
  • State-aware compliance filtering
  • Scoped category search that respects browse context
Search Beverly Hills Guns
Search by Manufacturer, Model, UPC, or MPN.
Arisaka Defense ARSOOM-BASE
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Arisaka Defense

$100.00
Available California compliant

Arisaka Defense Offset Optic Mount, Base, Anodized Finish, Black, Fits Picatinny OOM-BASE

Key Details
Brand Arisaka Defense
Manufacturer Part Number OOM-BASE
UPC 601557939623
SKU ARSOOM-BASE
Current Stock 158 available
Quantity Updated Apr 23, 2026 4:10 PM
Already have an account from an in-store purchase? Log in to use that profile for checkout and future orders.
Continue Shopping
Share This Product
Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

The Patented Arisaka Offset Optic Mount is a modular mounting solution that allows the user to select a 35 or 45 degree offset position for their red dot sight without additional components. The 35 degree position brings the red dot sight up closer to slimmer, smaller scopes, while the 45 degree position provides additional clearance around wider turrets. The mount is set to 35 or 45 degrees by reversing the stem between the optic plate and base during assembly. The mount's unique geometry correctly aligns the optic vertically over the bore and maintains a consistent height at both 35 and 45 degrees. Two heights of plates are offered; standard (1.5" to 1.8") and tall (1.9" to 2.2"). The base and optic plates can be reversed, making the mount fully ambidextrous. It is recommended that you choose the plate height that corresponds to your primary optic height. For example, if your scope is mounted in a 1.54" height mount, you'd choose the regular height plate for your offset red dot. This ensures a consistent cheek weld and seamless transition between your primary optic and offset red dot. A wide selection of red dot sights are supported with interchangeable optic plates.

Features
  • 1.9 oz including standard optic plate
  • 2.2 oz including tall optic plate
  • Length: 1.0 for the base, which occupies three Picatinny slots (twin recoil lugs and clamping screw)"
  • Height: The base sits 0.180 above the surface of the Picatinny rail"
  • Hardware: One 10-32x1.5 Torx socket cap head screw, two M4x16mm screws. Each separate plate includes two M4x10mm screws"
  • Made in the USA
Specifications
UPC: 601557939623
Manufacturer: Arisaka Defense
Manufacturer Part #: OOM-BASE
Finish: Anodized
Type: Offset Mount