My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Wish list
Your basket is empty. (0)
Basket
Newsletter Newsletter
Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

Rifle Parts Bolt Parts Extractor Parts Extractor Springs SPRINCO USA SPRING UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING Support

Upgrade your .308 with Sprinco's XP 5-Coil Extractor Spring for enhanced reliability, extreme duty cycles, and heat resistance up to 750°F, no D-Fender™ needed.

SPRINCO USA SPRING UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING

657780264056 943000055
Variations
Filters:
Variations:

Variations:

Upgrade your .308 with Sprinco's XP 5-Coil Extractor Spring for enhanced reliability, extreme duty cycles, and heat resistance up to 750°F, no D-Fender™ needed.
AR .308 DUAL EXTRACTOR CS SPRING UPGRADE KITS - SPRING UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING
15.9 GBP 0 £15.90 *
Backorderable
Product no.: 943000055
Backorderable
15.9 GBP 0 £15.90 *
-12 %
Upgrade your AR .308 with Sprinco's XP 5-Coil Extractor Springs for enhanced reliability, extreme duty cycles, and heat resistance up to 750°F.
AR .308 DUAL EXTRACTOR CS SPRING UPGRADE KITS - UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING 3PK
22.9 GBP 4 £22.90 * £25.90
In stock
Product no.: 943000056
In stock
22.9 GBP 4 £22.90 * £25.90
15.9 22.9 2 GBP
15.9 GBP £15.90

Prices inclusive of duty & VAT.

Product no.: 943000055

Mfr. No.: 26405

657780264056 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™ 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 reloading While the XP 5-Coil spring is totally reliable for all 5.56 BBL lengths, it can be aggressive on case rims in 18""+length BBL rifles, and may be too strong for some bolts with extremely tight bolt face tolerances Extreme duty cycles provided while maintaining performance specifications Unaffected by heat up to 750°F D-Fender™ rings are NOT recommended for use with our 5-Coil extractor springs. Dual spring XP .308 extractor spring sets may be used with or without CRANE O-rings. May be required for use in DPMS G2 Bolts for full-auto use. Plug & play - May easily be the only extractor springs needed for the life of your bolt!!
Backorderable
Be the first to rate this product
1
2
3
4
5
6
7
8
9
10+
£15.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy
No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
Wish List Ask question
15.9 22.9 2 GBP
Description Specification Customers reviews Accessories

SPRINCO USA SPRING UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING

15.9 GBP £15.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+
£15.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

Description:

Upgrade your firearm's reliability with Sprinco's innovative extractor springs.

Sprinco’s Extractor Springs are expertly crafted from chrome silicon wirestock that has undergone heat treatment, stress relief, and cryogenic processing post winding. Each spring is plated with a re-micronized molybdenum disulfide formulation to enhance performance.

Key Advantages:

  • XP 5-Coil Spring: Offers a heavier spring load compared to OEM springs, eliminating the need for a D-Fender™ ring or CRANE Viton O-Rings.
  • Compatibility: Use the 5-Coil spring with either a black extractor spring insert or CRANE Viton O-Rings, but not both simultaneously.
  • Enhanced Performance: The 4-Coil springs maintain an extended duty cycle load equivalent to a new Mil-Spec spring, ideal for 18" or longer barrel lengths, especially for those who retrieve their brass for reloading.
  • Reliability: The XP 5-Coil spring is reliable for all 5.56 barrel lengths, although it may be aggressive on case rims in rifles with 18" or longer barrels and could be too strong for some bolts with very tight tolerances.
  • Extreme Duty Cycles: Designed to provide extreme duty cycles while maintaining performance specifications.
  • Heat Resistance: Unaffected by heat up to 750°F.
  • Use with Caution: D-Fender™ rings are NOT recommended for use with our 5-Coil extractor springs.
  • Versatile Dual Spring Sets: XP .308 extractor spring sets can be used with or without CRANE O-rings, and may be required for use in DPMS G2 bolts for full-auto applications.
  • Plug & Play: These may easily be the only extractor springs needed for the life of your bolt!

Experience the difference in performance and reliability with Sprinco's extractor spring upgrade kits.



Top takeaways

  1. SPRINCO USA's AR .308 Dual Extractor CS Spring Upgrade Kits feature heat-treated, stress-relieved, and cryogenically processed chrome silicon wirestock springs with molybdenum disulfide plating.
  2. The XP 5-Coil spring offers a heavier load than OEM springs, eliminating the need for D-Fender™ rings or CRANE Viton O-Rings, and is suitable for all 5.56 BBL lengths.
  3. These springs maintain performance under extreme duty cycles and temperatures up to 750°F, and the dual spring XP .308 sets can be used with or without CRANE O-rings.

Attributes

  • Delivery weight: 0.005kg
  • Shipping height: 51mm
  • Shipping width: 3mm
  • Shipping length: 64mm
  • UPC: 657780264056

Item details

Made in USA

Customers reviews

Customer ratings (0)

0 / 5

Variations:

Upgrade your .308 with Sprinco's XP 5-Coil Extractor Spring for enhanced reliability, extreme duty cycles, and heat resistance up to 750°F, no D-Fender™ needed.
AR .308 DUAL EXTRACTOR CS SPRING UPGRADE KITS - SPRING UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING
15.9 GBP 0 £15.90 *
Backorderable
Product no.: 943000055
Backorderable
15.9 GBP 0 £15.90 *
-12 %
Upgrade your AR .308 with Sprinco's XP 5-Coil Extractor Springs for enhanced reliability, extreme duty cycles, and heat resistance up to 750°F.
AR .308 DUAL EXTRACTOR CS SPRING UPGRADE KITS - UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING 3PK
22.9 GBP 4 £22.90 * £25.90
In stock
Product no.: 943000056
In stock
22.9 GBP 4 £22.90 * £25.90

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2025 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top