Upgrade Kit-4-Coil Extractor Spring, Insert, O-Ring

Name: Upgrade Kit-4-Coil Extractor Spring, Insert, O-Ring
Brand: Sprinco USA
Availability: OutOfStock

Sprinco USA · Upper Parts

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Best price

$5.39at Brownells

Out of stock checked Oct 1, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$5.39checked Oct 1, 2026	Out of stock	Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Sep 28, 2026.

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Store	Latest	Lowest	Highest
Brownells	$5.39	$5.39	$5.39

Since Sep 28, 2026.

About this part

The Upgrade Kit-4-Coil Extractor Spring, Insert, O-Ring is an AR-15 upper part from Sprinco USA. One store lists it, Brownells at $5.39.

Specifications

Manufacturer: Sprinco USA
Platform: AR-15

From the manufacturer

Sprinco's Extractor Springs are made of chrome silicon wirestock that has been heat treated, stress relieved, and cryogenic processing post winding. The springs are also plated with re-micronized molybdenum disulfide formulation. ADVANTAGES: XP 5-Coil spring has a heavier spring load than OEM springs, thus negating the need for a D-Fender(TM) ring or adding CRANE Viton O-Rings Use 5-Coil spring with either black extractor spring insert OR CRANE Viton O-Rings, but not both Enhanced 4-Coil springs maintain an extended duty cycle load of a NEW Mil-Spec spring and is recommended for use in 18""+BBL lengths for those who retrieve their brass for reloa Mfg: Sprinco Usa