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Tikka Opti-Lock Rings — Black — 1" Extra Low (S1300923) — Informational Overview
The Tikka Opti-Lock Rings are scope rings designed to mount an optic with a 1-inch (25.4mm) main tube diameter. This model is listed in black with an extra low ring height and is identified by part number S1300923 and UPC 082442110479. “Opti-Lock” refers to Tikka’s ring system family, intended to provide a stable optic mounting interface when paired with compatible bases/receivers (exact compatibility depends on the rifle model and mounting system used).
Because extra low rings sit very close to the barrel/receiver line, users typically verify clearance carefully for scope objective diameter, bolt handle operation (on bolt actions), and any accessories such as lens caps.
Key Identifiers
Brand: Tikka
Product Line: Opti-Lock Rings
Tube Diameter: 1 inch (25.4mm)
Ring Height: Extra Low
Color/Finish: Black
Part Number / MPN: S1300923
UPC: 082442110479
1" Scope Tube Compatibility: Confirm the Optic Tube Size
These rings are designed for 1-inch scope tubes. Users typically confirm:
The optic has a 1" main tube (not 30mm, 34mm, etc.)
There is sufficient straight tube length for ring placement
The turret saddle and eyepiece geometry do not conflict with ring spacing
Correct tube diameter selection is essential for secure clamping and to avoid damaging the scope.
Extra Low Ring Height: Clearance and Cheek Weld Notes
“Extra low” rings are generally chosen to keep the optic as close to the bore line as possible. This can support:
A lower overall sighting height
A more natural cheek weld on many stocks
A streamlined setup with minimal optic elevation
However, extra low rings require careful clearance checks. Users commonly verify:
Objective bell clearance over the barrel and receiver
Clearance for flip caps or lens covers (if used)
Bolt handle clearance (especially on bolt-action rifles)
Any interference with factory rear sights (if present)
Ring height needs can vary significantly depending on scope objective size and barrel contour.
Opti-Lock System Considerations: Base and Receiver Interface
“Tikka Opti-Lock” rings may be intended to pair with specific Tikka mounting solutions (such as Opti-Lock bases or compatible receiver interfaces, depending on rifle model). Users typically confirm:
Their rifle’s mounting interface type (e.g., Tikka dovetail vs Picatinny/Weaver rail)
Whether Opti-Lock bases are required for these rings
Hardware compatibility and correct ring/base pairing for proper alignment
Matching by MPN S1300923 is typically the most reliable way to ensure you’re selecting the correct Opti-Lock ring variant.
Black Finish: Practical Appearance and Matching
A black finish is commonly selected for:
Low glare and subdued appearance
Easy matching with black optics and bases
Reduced visibility of fingerprints and minor cosmetic wear
Installation and Safety Notes (General)
Scope rings are accuracy- and safety-relevant components. Common best practices include:
Following manufacturer torque specs for ring caps and clamp screws
Leveling the optic during installation
Avoiding over-tightening that can dent the scope tube
Re-checking fasteners periodically after initial use
If unsure about ring height selection or compatibility, many users consult a qualified gunsmith/armorer.
Quick Reference Summary
Tikka Opti-Lock Rings
1" tube diameter
Extra low height
Black
MPN: S1300923
UPC: 082442110479
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