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Ar-15 St45 Short Throw Ambidextrous Safety Selectors - St45 Short Throw Ambidextrous Safety Selector Black
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$35.99
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SKU: 100038370
Overview
Built for AR-15 users who want faster selector movement, this short-throw ambidextrous safety selector reduces the standard 90-degree travel to a shorter, quicker transition between fire and safe. Its ambidextrous layout supports operation from either side of the rifle, and the selector is described as smooth in both directions. The design uses aluminum levers with a steel core, and installation hardware is included. Armaspec notes that it should not be used on AR lower receivers that do not have “FIRE” markings.
Why Hunters Choose the Armaspec
Short-throw Design
A traditional 90-degree safety
Ambidextrous Operation
Supports quick use from either
Smooth, Seamless
Movement is described for both
Aluminum Levers
A steel core provide a
Torx Screws
Secure the levers in place
Key Features
- Short-throw AR-15 safety selector with reduced 45-degree travel
- Ambidextrous design supports operation from either hand
- Smooth, seamless selector movement in both directions
- Aluminum levers with a steel core construction
- Levers secured with Torx screws
- Installation key included
Best Used For
- AR-15 owners wanting a short-throw selector for faster fire-to-safe transitions
- Left- or right-handed shooters needing ambidextrous control from either side
- Users who prefer a smooth selector movement with reduced travel distance
- Rifle builders seeking a black safety selector with included installation key
- Shooters with compatible AR lower receivers marked for FIRE selector use
Pros
- Short-throw design reduces selector travel compared with a traditional 90-degree safety.
- Ambidextrous operation supports quick use from either side of the rifle.
- Smooth, seamless movement is described for both directions of travel.
- Aluminum levers with a steel core provide a solid, purpose-built construction.
- Torx screws secure the levers in place for installation.
- Installation key is included with the selector.
Considerations & Trade-offs
- The short-throw design changes the selector’s movement from a traditional 90-degree throw, so it may feel different from a standard AR-15 safety selector.
- It is intended for AR lower receivers marked "FIRE"; the manufacturer warns against using it on lower receivers that do not have that marking.
- Installation requires the included Torx key, so setup depends on having the provided tool available.
- The ambidextrous layout adds flexibility for either hand, but it also means the selector is designed around a specific control style rather than a conventional one-sided setup.
Suggested Comparisons
- AR-15 standard safety selectors
- Ambidextrous safety selectors
- Short-throw safety selectors
- AR-15 lower receiver upgrade parts
Suggested Accessories
- AR-15 lower receiver parts
- Torx driver
- Gun cleaning kit
- Spare hardware kit
Frequently Asked Questions
What makes the ST45 different from a standard AR-15 safety selector?
According to the product description, the ST45 uses a short-throw design that cuts the traditional 90-degree throw in half, giving shorter travel between fire and safe.
Is this safety selector ambidextrous?
Yes. The ST45 is described as ambidextrous, so it can be operated with either hand.
What materials are mentioned for the selector?
The description says the levers are machined from aluminum and sandwich a steel core.
Does the installation hardware come with the selector?
Yes. The description says the key needed for installation is included.
Are there any receiver compatibility notes I should know before buying?
Yes. The company warns that these levers should not be used on AR lower receivers that do not have 'FIRE' marked on them.