AR-15 Trigger Spring
The United Defense AR-15 Trigger Spring is a mil-spec replacement spring for the standard AR-15 fire control group. Made from hardened spring steel, it delivers consistent trigger return and a positive reset, and drops directly into any mil-spec AR-15, M4, or M16 lower without fitting or modification. Whether you're finishing a fresh build, refreshing a high-round-count rifle, or stocking your armorer's parts box, this is one of the small components no AR owner should be without. A smart spare to keep on hand for range repairs and routine maintenance.
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- SKU
- N8448593
$2.95
Description
Features
- MIL-SPEC Construction — Manufactured to military specification dimensions for direct compatibility with standard AR-15 fire control groups.
- Hardened Spring Steel — Built from high-quality spring steel for consistent tension, reliable reset, and long service life.
- Direct Drop-In Replacement — Swaps in for any worn, lost, or damaged factory AR-15 trigger spring with no fitting required.
- Consistent Trigger Reset — Delivers dependable forward pressure on the trigger for a positive, repeatable reset shot after shot.
- AR-15 Platform Compatible — Fits standard mil-spec AR-15 / M16 / M4 trigger assemblies and most lower parts kits on the market.
- Corrosion-Resistant Finish — Protective finish resists rust and fouling buildup inside the lower receiver.
- Essential Spare Part — A critical small part to keep in your range bag, armorer's kit, or build box for fast field repairs.
- Affordable Maintenance Item — Low-cost insurance against a down rifle caused by a single broken or fatigued spring.
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