Description
Swapping out a gritty mil-spec safety for the Timber Creek AMBISST is one of those upgrades that pays off every single time you pick up your rifle. This is a true drop-in replacement for the factory selector on any mil-spec AR-15 lower, giving you controls on both sides of the receiver so you can work the safety whether you shoot right-handed, left-handed, or somewhere in between. The tungsten finish adds a sharp look that plays nice with a lot of popular lower colors, and the crosshatch texturing on both levers keeps your thumb and finger planted even with gloves on or in the rain.
Dialing In the AMBISST Throw
The standout feature here is the selectable throw. You can run it as a traditional 90-degree safety or drop it down to a snappy 45-degree short throw, which a lot of folks find faster and more natural once they try it. The levers are modular too, so you can set the longer lever on whichever side suits your grip and put the shorter one where you don't want it catching your trigger finger. That flexibility is a big part of why people end up putting these on every build in the safe.
What Sets the Timber Creek Ambi Selector Apart
Built from aircraft-grade aluminum with an anodized finish, the levers are made to hold up to real range time and hard use. Timber Creek is a family-run outfit out of Springfield, Oregon, and they back their parts with a lifetime warranty, so you're covered for the long haul. Installation is quick since the kit comes complete with the spring and detent, and most people have it done in a few minutes with basic tools.
One thing worth knowing before you install: this selector plays well with most triggers but is not designed to work with every aftermarket unit, so it's smart to confirm compatibility with your setup and run a full function check once it's in. For a standard mil-spec build, though, it's a simple, satisfying upgrade that gives you crisp, positive clicks at both settings.
Key Specifications
- Manufacturer: Timber Creek Outdoor Inc
- Manufacturer Part Number: AMBISST
- Model: Ambidextrous Safety Selector (AMBI SS)
- UPC: 816397023016
- Color: Tungsten
- Type: Ambidextrous drop-in safety selector
- Throw Options: 45 or 90 degrees (selectable short throw)
- Lever Material: Aircraft-grade aluminum, anodized
- Lever Design: Modular, crosshatch textured (long and short levers)
- Compatibility: Mil-Spec AR-15 lower receivers
- Country of Origin: Made in the USA
- Warranty: Lifetime warranty
What’s Included
- Ambidextrous safety selector drum
- Long selector lever
- Short selector lever
- 2 set screws
- Safety selector spring
- Safety selector detent
Frequently Asked Questions
Will the AMBISST fit my AR-15?
Yes, it's designed as a direct drop-in replacement for the factory selector on any mil-spec AR-15 lower receiver. It comes with the spring and detent you need, so installation only takes a few minutes with basic tools. Just plan on running a function check once it's installed.
What's the difference between the 45 and 90-degree throw?
The 90-degree throw is the traditional mil-spec motion, while the 45-degree short throw cuts the distance your thumb has to travel to go from safe to fire. A lot of people find the shorter throw faster and more natural once they get used to it, and this selector lets you set it up either way to match your preference.
Can I use this if I'm left-handed?
Absolutely. The whole point of an ambidextrous selector is controls on both sides of the receiver, so lefties and righties both benefit. The levers are modular too, so you can put the longer lever on whichever side works best for your grip and keep the shorter one where it won't rub your trigger finger.
Does the AMBISST work with aftermarket triggers?
It works with most triggers, but it isn't designed to function correctly with every aftermarket unit. If you're running something other than a standard mil-spec trigger, it's a good idea to confirm compatibility before installing and always complete a full function check afterward.





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