Armacon ARM-313 Direct Optic Base for BS-151 Mount
- $89
In short: Armacon ARM-313 Direct Optic Base for BS-151 Mount connects BS-151 replaceable-upper interface and hex driver to direct base for Holosun HS403/503/515; Aimpoint T1/T2/H1/H2; documented SIG Romeo models.
Compatibility matrix
| Documented hosts | Armacon BS-151 side mount |
|---|---|
| Required input | BS-151 replaceable-upper interface and hex driver |
| Resulting interface | direct base for Holosun HS403/503/515; Aimpoint T1/T2/H1/H2; documented SIG Romeo models |
| Do not select for | BS-150 unless separately confirmed; RMR-pattern and Picatinny-only devices |
Selection checkpoint: Confirm the exact host, lower/upper generation or handguard family before ordering. Similar Armacon interfaces are purpose-specific.
Technical specifications
| Part number | ARM-313 |
|---|---|
| Construction | 7075 aluminum with durable anodized finish |
| Interface detail | Direct low-profile optic base |
| Packaging | Zip-lock package |
Installation
Secure ARM-313 to the BS-151 upper interface with a hex driver, then install only a documented compatible device.
What's in the Box
| ARM-313 upper base ×1 | Manufacturer package |
Frequently asked questions
Which host is documented?
Armacon BS-151 side mount.
Which interface is required?
BS-151 replaceable-upper interface and hex driver.
What does the product provide?
direct base for Holosun HS403/503/515; Aimpoint T1/T2/H1/H2; documented SIG Romeo models.
What should be checked before ordering?
Confirm the exact product family and interface generation rather than relying on visual similarity.
Zenitco Specs
General
Mounting & Rails
Kit Contents
Care & Chemicals
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