Arisaka Defense OPA Offset Picatinny Adapter for OCM-C/OSM-K/OSM-M/SSM-K/SSM-M
User Ratings
No ratings yet
Be the first to review this product
The Arisaka Defense Offset Picatinny Adapter (OPA) is a 1-piece aluminum adapter with a black finish.
Designed to provide an offset Picatinny interface for mounting compatible accessories. Compatible with OCM-C, OSM-K, OSM-M, SSM-K, and SSM-M.
Specifications
- Manufacturer:
- Arisaka Defense
- Category:
- red-dot-mount-riser
- Interfaces:
- MIL-STD-1913
- UPC:
- 601557939975
- MPN:
- 601557939975
- Required Component:
- No
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
Current
$24.99
Lowest
$24.99
Highest
$24.99
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertSimilar Products
Unity Tactical FAST Absolute Riser Flat Dark Earth 2.26 Inch Optical Height
Unity Tactical
$109.95
Scalarworks LEAP CompM5s Mount - 1.93" Height SW1920
Scalarworks
$135.33
Scalarworks Aimpoint ACRO LEAP/03 QD Mount 1.57 in (Black)
Scalarworks
$159.00
Vortex Optics 45RDM 45 Degree Offset Picatinny Mount
Vortex Optics
$59.00
Leupold DeltaPoint Pro 45° AR Mount Aluminum Picatinny
Leupold
$58.06
Leupold DeltaPoint Pro DLOC AR Mount (Matte) 1-Piece Quick Detach
Leupold
$169.99
Holosun Picatinny Mount for 407C 507C 508T Optics (Matte Black)
Holosun
$29.99
Hawke Long Picatinny-to-Picatinny Riser 0.5" Height QR/Clamp Style
Hawke Sport Optics
$27.99
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
AK Optics Mounting Guide: Side Rail vs Dust Cover vs Handguard
Compare the main AK optics mounting approaches and choose the right setup for durability, repeatable zero, and practical shooting performance.
8 min read
Guide
Glock-Compatible Red Dot Setup and Zeroing Basics
How to set up a red dot on Glock-compatible pistols, avoid mounting mistakes, and choose a practical zero for defensive and range use.
7 min read
Guide
AR-15 Optic Height Over Bore Explained (1.54, 1.93, 2.26)
An AR-15 optic mounting guide explaining height over bore, close-range offset, holdovers, and tradeoffs between absolute co-witness, lower-third, and taller mount heights.
7 min read