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Rifle Parts Receiver Parts Recoil Parts Recoil Springs SPRINCO USA M4 CARBINE ENHANCED BUFFER SPRING Support
Upgrade your M4 Carbine with the SPRINCO USA Enhanced Buffer Spring for improved performance; 15% stronger than the White spring for optimal reliability.

SPRINCO USA M4 CARBINE ENHANCED BUFFER SPRING

657780250073 943000035
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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
40.9 GBP 0 £40.90 *
Backorderable
Product no.: 943000035
Backorderable
40.9 GBP 0 £40.90 *
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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
43.9 GBP 0 £43.90 *
Backorderable
Product no.: 943000034
Backorderable
43.9 GBP 0 £43.90 *
Ask question
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
43.9 GBP 0 £43.90 *
Backorderable
Product no.: 943000033
Backorderable
43.9 GBP 0 £43.90 *
Ask question

Variations:

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
40.9 GBP 0 £40.90 *
Backorderable
Product no.: 943000035
Backorderable
40.9 GBP 0 £40.90 *
Ask question
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
43.9 GBP 0 £43.90 *
Backorderable
Product no.: 943000034
Backorderable
43.9 GBP 0 £43.90 *
Ask question
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
43.9 GBP 0 £43.90 *
Backorderable
Product no.: 943000033
Backorderable
43.9 GBP 0 £43.90 *
Ask question
40.9 43.9 3 GBP
40.9 GBP £40.90

Prices inclusive of duty & VAT.

Product no.: 943000035

Mfr. No.: 25007

657780250073 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.
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Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

Free shipping starting at £199.00.
Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy
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Description:

Enhance your shooting performance with SPRINCO USA's M4 Carbine Spring Kits!

The M4 Carbine CS Enhanced Spring Kits by SPRINCO USA feature an Enhanced Power Buffer Spring designed to improve the overall performance of your firearm. The Blue spring offers a load approximately 15% greater than the White spring, catering to the high-performance demands of various platforms.

Key Features:

  • Enhanced Power: The Blue spring's design provides increased load capacity.
  • Expert Endorsement: Developed in collaboration with Mike Pannone of CTT Solutions.
  • Versatile Compatibility: Recommended for use with H2 or ST-T2 buffers in 14.5 - 16” ML carbines.

Before making a selection, we advise you to refer to the provided tuning procedure reference documents for optimal recommendations. The vast range of gas port values encountered in the field means that while the Blue spring is popular, the best choice may vary based on your specific setup.

Upgrade your M4 Carbine with the SPRINCO USA Enhanced Buffer Spring and experience the difference in performance!



Top takeaways

  1. The Blue spring has approximately 15% greater load than the White spring, tailored for high-performance demands.
  2. Mike Pannone of CTT Solutions influenced the production of the Blue spring, which is suitable for a range of specimen platforms.
  3. While often paired with an H2 or ST-T2 buffer for 14.5 - 16” ML carbines, the optimal setup can vary due to diverse gas port values.

Attributes

  • Delivery weight: 0.073kg
  • Shipping height: 25mm
  • Shipping width: 25mm
  • Shipping length: 340mm
  • UPC: 657780250073

Item details

Made in USA

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Variations:

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
40.9 GBP 0 £40.90 *
Backorderable
Product no.: 943000035
Backorderable
40.9 GBP 0 £40.90 *
Ask question
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
43.9 GBP 0 £43.90 *
Backorderable
Product no.: 943000034
Backorderable
43.9 GBP 0 £43.90 *
Ask question
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
43.9 GBP 0 £43.90 *
Backorderable
Product no.: 943000033
Backorderable
43.9 GBP 0 £43.90 *
Ask question

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