AR-15 Pivot Pin Detent Spring
The United Defense AR-15 Pivot Pin Detent Spring is a mil-spec replacement spring for the front pivot pin assembly on AR-15 pattern lower receivers. Wound from hardened spring steel, it delivers the consistent tension required to keep the pivot pin detent seated and your takedown pin operating the way it should. This is a critical small part for any lower build, repair job, or armorer's spare parts box. It's a direct drop-in fit for AR-15, M4, and most AR-10/LR-308 lowers built to standard specifications.
In stock
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- SKU
- 8448586-2
$1.95
Description
Features
- Mil-Spec Dimensions — Manufactured to standard AR-15 specifications for a true drop-in fit in any mil-spec lower receiver.
- Pivot Pin Retention — Provides the constant tension needed to hold the pivot pin detent firmly in place during disassembly and reassembly.
- Hardened Steel Construction — Wound from heat-treated spring steel to maintain consistent pressure over thousands of cycles.
- Corrosion-Resistant Finish — Protective coating helps resist rust and wear inside the receiver pocket.
- Direct Replacement Part — Swaps in for the factory pivot pin detent spring without modification or fitting.
- Essential Build Component — A must-have small part for AR-15 lower receiver builds, repairs, and spare parts kits.
- Compact and Lightweight — Adds zero noticeable weight while restoring proper function to your lower receiver.
- Wide Platform Compatibility — Works across AR-15, M4, and most LR-308/AR-10 pattern lowers built to mil-spec tolerances.
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Customer Reviews
Top customer reviews
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Perfect WebsiteI purchased two of these pivot pin detent springs. Used one for repair, other is spare.
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Awesome Spare Part 5*Leading AR15 pivot pin detent spring for the price sold by a awesome company. Thank you ks!
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Great Company5 Star
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ExcellentThe parts are awesome. Would recommend.
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THANKS KEEPSHOOTINGDelighted with this order.
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