Out of stock
SKU: BCM-SELECTOR-SAFETY-AMBI-SEMI
MPN: SELECTOR-SAFETY-AMBI-SEMI
The BCM Ambidextrous Safety Selector - Semi gives semi-automatic AR15 and M4 shooters a true two-sided safety lever, so the gun can be taken on and off safe from either side without breaking a firing grip. This is the part southpaws and right-handed shooters who run a rifle from both shoulders reach for first. It works with Mil-Spec lower receivers, and the bcm ambi safety swaps in during a standard lower build or upgrade. For anyone setting up a defensive carbine, a competition rifle, or a duty gun, it solves the single biggest ergonomic gap in the stock fire control group.
Bravo Company Usa builds this selector with equal-length levers on both sides, so the throw feels identical no matter which thumb runs it. The action is smooth with solid, audible clicks into the safe and fire positions, which matters when you need to confirm status by feel under stress. The semi-auto detent geometry indexes cleanly into Mil-Spec lowers, and installation follows the same drop-in process as any standard selector and detent. The black finish holds up to hard use and repeated handling. Stated dimensions are roughly 3 x 1 x 2.25 inches at about 0.05 lbs, so it adds no meaningful weight to the rifle. Pair it with a fresh detent and spring from our rifle parts selection when you do the swap.
Reach for this selector when you build or rebuild an AR15 lower and want controls that work from both sides. It earns its place on patrol carbines, three-gun rifles, and home-defense builds where running the gun from cover means shooting off either shoulder. Installation is straightforward if you already work on your own lowers, and it drops into any Mil-Spec receiver. While the lower is apart, it's a good time to check your other small parts and keep a cleaning kit on the bench. Browse the rest of our ambi safety selector options to match the part to your build.
It is designed for Mil-Spec lower receivers and works with semi-automatic AR15 and M4 rifles and carbines. If your lower is built to Mil-Spec dimensions, this selector drops in using a standard detent and spring. Non-Mil-Spec or proprietary lowers may require checking the selector pocket and detent geometry before installation.
Yes. The selector has levers on both the left and right side of the receiver, with equal length on each side, so the throw feels the same from either thumb. That makes it a solid choice for left-handed shooters and for anyone who runs a rifle from both shoulders.
Yes. This is the semi-auto version, with detent geometry that indexes into the safe and fire positions on a semi-automatic fire control group. It is not configured for full-auto or burst lower receivers.
No. It installs like any standard AR15 safety selector, using the selector detent and spring in the grip. If you have built or worked on an AR15 lower before, the swap is straightforward. Confirm the levers click solidly into both positions once seated.
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