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Rifle Parts Receiver Parts Recoil Parts Recoil Springs SPRINCO USA SPRING KIT- ENHANCED BUFFER & 4-COIL BOLT EXTRACTOR SPRING Support

Enhance your M4 Carbine's performance with SPRINCO USA's Blue spring, offering 15% greater load for reliable cycling and improved reliability.
-10 %

SPRINCO USA SPRING KIT- ENHANCED BUFFER & 4-COIL BOLT EXTRACTOR SPRING

657780250486 943000034
Variations
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-10 %
Enhance your M4 Carbine's performance with SPRINCO USA's Blue spring, offering 15% greater load for reliable cycling and improved reliability.
M4 CARBINE CS ENHANCED SPRING KITS - SPRING KIT- ENHANCED BUFFER & 4-COIL BOLT EXTRACTOR SPRING
36.9 GBP 3 £36.90 * £40.90
In stock
Product no.: 943000034
In stock
36.9 GBP 3 £36.90 * £40.90
-10 %
The SPRINCO USA Enhanced Buffer Spring offers 15% greater load than the White spring, ideal for high-performance ML carbines, enhancing reliability and function.
M4 CARBINE CS ENHANCED SPRING KITS - SPRING KIT-ENHANCED BUFFER XP 5-COIL BOLT EXTRACTOR SPRING
36.9 GBP 6 £36.90 * £40.90
In stock
Product no.: 943000033
In stock
36.9 GBP 6 £36.90 * £40.90
Upgrade your M4 Carbine with the SPRINCO USA Enhanced Buffer Spring for improved performance; 15% stronger than the White spring for optimal reliability.
M4 CARBINE CS ENHANCED SPRING KITS - M4 CARBINE ENHANCED BUFFER SPRING
37.9 GBP 0 £37.90 *
Backorderable
Product no.: 943000035
Backorderable
37.9 GBP 0 £37.90 *
36.9 37.9 3 GBP
-10 %
MSRP £40.90
36.9 GBP £36.90

Prices inclusive of duty & VAT.

Product no.: 943000034

Mfr. No.: 25048

657780250486 Enhanced Power Buffer Spring. The design loads of the Blue spring are approximately 15% greater than the White spring for one of the considered Load Constants in the spring design. Refer to provided tuning procedure reference documents prior to calling for recommendations. We were encouraged to manufacture the Blue spring by Mike Pannone of CTT Solutions, who modified one of Sprinco's Red springs and recommended that they offer a spring with the loads of the Blue spring to address the high performance demands of other specimen platforms. While contemporary internet forum lore leans towards the use of the Blue spring with an H2 or ST-T2 buffer for 14.5 - 16” ML carbines, nothing is set in stone due to the vast range of gas port values in the wild that have come into play since we first entered the arena.
In stock 3 pcs. in the USA warehouse
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-10 %
MSRP £40.90
£36.90

Prices inclusive of duty & VAT.

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Delivery time approx. 7-14 days.

100-Day Return Policy

Delivery time approx. 7-14 days.

100-Day Return Policy
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36.9 37.9 3 GBP
Description Specification Customers reviews Accessories

SPRINCO USA SPRING KIT- ENHANCED BUFFER & 4-COIL BOLT EXTRACTOR SPRING

-10 %
MSRP £40.90
36.9 GBP £36.90

Prices inclusive of duty & VAT.

1
2
3
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5
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10+
-10 %
MSRP £40.90
£36.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

Delivery time approx. 7-14 days.

100-Day Return Policy

Description:

Enhance your firearm's performance with the M4 Carbine CS Enhanced Spring Kits!

The M4 CARBINE CS ENHANCED SPRING KITS from SPRINCO USA are designed to elevate your shooting experience. These kits include an Enhanced Power Buffer Spring and a 4-Coil Bolt Extractor Spring, tailored for high-performance demands.

Product Features:

  • Enhanced Power Buffer Spring: The Blue spring boasts a design load approximately 15% greater than the White spring, ensuring optimal performance.
  • High Performance: Developed in collaboration with Mike Pannone of CTT Solutions, who recognized the need for a spring that meets the rigorous demands of modern firearm platforms.
  • Versatile Compatibility: While the Blue spring is commonly paired with H2 or ST-T2 buffers for 14.5 - 16” ML carbines, its adaptability caters to various gas port values.

Before making any adjustments, we recommend referring to the provided tuning procedure reference documents for the best results. Upgrade your M4 Carbine today and experience the difference!



Top takeaways

  1. The Blue spring has approximately 15% greater load than the White spring, designed for high performance demands.
  2. It is recommended to consult the tuning procedure reference documents before seeking further recommendations.
  3. While the Blue spring is often associated with H2 or ST-T2 buffers for 14.5 - 16” ML carbines, the vast range of gas port values affects its compatibility.

Attributes

  • Delivery weight: 0.073kg
  • Shipping height: 25mm
  • Shipping width: 25mm
  • Shipping length: 337mm
  • UPC: 657780250486

Item details

Made in USA

Customers reviews

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Variations:

-10 %
Enhance your M4 Carbine's performance with SPRINCO USA's Blue spring, offering 15% greater load for reliable cycling and improved reliability.
M4 CARBINE CS ENHANCED SPRING KITS - SPRING KIT- ENHANCED BUFFER & 4-COIL BOLT EXTRACTOR SPRING
36.9 GBP 3 £36.90 * £40.90
In stock
Product no.: 943000034
In stock
36.9 GBP 3 £36.90 * £40.90
-10 %
The SPRINCO USA Enhanced Buffer Spring offers 15% greater load than the White spring, ideal for high-performance ML carbines, enhancing reliability and function.
M4 CARBINE CS ENHANCED SPRING KITS - SPRING KIT-ENHANCED BUFFER XP 5-COIL BOLT EXTRACTOR SPRING
36.9 GBP 6 £36.90 * £40.90
In stock
Product no.: 943000033
In stock
36.9 GBP 6 £36.90 * £40.90
Upgrade your M4 Carbine with the SPRINCO USA Enhanced Buffer Spring for improved performance; 15% stronger than the White spring for optimal reliability.
M4 CARBINE CS ENHANCED SPRING KITS - M4 CARBINE ENHANCED BUFFER SPRING
37.9 GBP 0 £37.90 *
Backorderable
Product no.: 943000035
Backorderable
37.9 GBP 0 £37.90 *

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