AR-15 Selector Detent
The United Defense AR-15 Selector Detent is a mil-spec replacement detent pin for the safety selector on AR-15, M4, and AR-10 pattern rifles. Machined from hardened steel with a black oxide finish, it provides the positive click and lock-up between the SAFE and FIRE positions when paired with a standard selector detent spring. This is the small but critical part that frequently gets lost during disassembly or a stripped-lower build. A smart spare to keep on hand for AR builders, armorers, and any shooter who maintains their own rifle.
In stock
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- SKU
- N8448631
$1.95
Description
Features
- Mil-Spec Dimensions — Manufactured to mil-spec tolerances for drop-in fit with any standard AR-15 or AR-10 safety selector.
- Hardened Steel Construction — Machined from hardened steel to resist wear from constant spring pressure and selector rotation.
- Black Oxide Finish — Corrosion-resistant black finish blends with factory lower receiver internals and stands up to solvents and lubricants.
- Precision Machined Profile — Tapered tip and consistent diameter ensure smooth engagement with the safety selector detent holes.
- AR-15 / AR-10 Compatible — Direct replacement for OEM detents across AR-15, M4, and AR-10/LR-308 pattern lowers.
- Lower Parts Kit Replacement — Ideal spare or replacement piece for builders, armorers, and anyone reassembling a stripped lower.
- Critical Fire Control Component — Works with the selector detent spring to hold the safety selector positively in SAFE and FIRE positions.
- Compact, Easy to Stock — Small, inexpensive part worth keeping in your range bag, build kit, or armorer's spare parts box.
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Customer Reviews
Top customer reviews
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Perfect for meThese replacement parts are great. Would absolutely buy again.
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Just as pictured.Received in two days after buying. Will be back to shop at keepshooting again.
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Very PleasedFunctions great as a spare selector detent for my AR15.
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Rapid ProcessingParts look good. Exactly what I needed.
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Very PleasedFunctions great as a replacement selector detent for my AR15.
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