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Sprinco USA

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Sprinco USA Products

1 - 20 of 25 results

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SPRINCO USA

SPRINCO USA SPRING KIT-BUFFER ENHANCED 4-COIL BOLT EXTRACTOR SPRING
M4 CARBINE CS INTERMEDIATE SPRING KITS

The Hot White spring was an accidental production between White and Blue spring loads, offering an intermediate power buffer spring.
After customer feedback, the Hot White spring became a preferred solution for those seeking a performance balance between White and Blue springs.
This intermediate spring is also a suitable enhancement for users who typically opt for Mil-Spec carbine springs.

In stock

£34.90 £34.90 - £39.90

SPRINCO USA

SPRINCO USA UPGRADE TRIPLE KIT-3)4-COIL EXTRACTOR SPRING, INSERT,O-RING
M16/M4 EXTRACTOR SPRING UPGRADE KITS

Extractor Springs

Sprinco’s Extractor Springs are made from heat-treated chrome silicon, cryogenically processed, and molybdenum disulfide plated for durability and performance.
The XP 5-Coil spring provides a heavier load than OEM springs, eliminating the need for additional D-Fender™ rings or CRANE Viton O-Rings.
Enhanced 4-Coil springs are recommended for 18" or longer barrels for those who reload, while the 5-Coil spring is reliable for all 5.56 barrel lengths but may be too strong for certain bolts.

In stock

£23.90 £12.90 - £23.90

Upgrade your AR-15 with Sprinco's Mil-Spec extractor inserts & O-rings. 🛠️ Quality you can trust, made in the USA for peak performance!

SPRINCO USA

SPRINCO USA LUCKY 13 BLACK EXTRACTOR INSERT & VITON O-RING 13 PK
AR-15 EXTRACTOR INSERTS & O-RINGS MIL-SPEC

Extractor Springs

Sprinco USA produces Mil-Spec extractor inserts and O-rings, exceeding standard requirements, using their own high-quality molds and materials.
All Sprinco products are made in the USA, ensuring superior grade base materials over commercial or foreign imports.
The Black Extractor Spring Inserts and Viton CRANE O-Rings meet specific military specifications (MIL-PRF-6855-REV G and MIL-R-83248C).

In stock

£21.90 £9.90 - £21.90

SPRINCO USA

SPRINCO USA PROG. RECOIL SPRING 10LB.
1911 PROGRESSIVE RECOIL SPRING

Recoil Springs

In stock

£14.90

SPRINCO USA

SPRINCO USA 308 M4 EXTENSION TUBE CS XP BUFFER SPRING IN HARD TUBE
AR 308 M4 EXTENSION TUBE XP BUFFER SPRING

The Orange buffer spring is designed for heavy caliber applications such as .308, 6.5 CM, and .260 Rem in AR-10 pattern rifles with standard 7" M4 extension tubes.
It is suitable for carbine platforms with a robust gas system, particularly in 16” - 18” ML gas carbine platforms with heavy BCGs.
This spring is also effective for tuning over-gassed carbines and can be used in AR-10 tubes with 3.25" buffers or with lesser calibers like 5.56.

In stock

£36.90

Upgrade your AR .308 with Sprinco's Enhanced Ejector Springs! 🌟 Durable, heat-resistant, and designed for peak performance. Get your 3-pack today!

SPRINCO USA

SPRINCO USA ENHANCED SUPER DUTY EJECTOR SPRING- STANDARD POWER 3PK
AR .308 ENHANCED SUPER DUTY EJECTOR SPRINGS

Ejector Springs

Sprinco's Ejector Springs are made from heat-treated, stress-relieved chrome silicon wirestock with cryogenic processing, ensuring durability and reliability.
The springs are coated with a re-micronized molybdenum disulfide formulation for reduced friction and enhanced performance.
These ejector springs are designed to withstand temperatures up to 750ºF and maintain performance specifications over an extreme length duty cycle.

In stock

£22.90 £9.90 - £22.90

SPRINCO USA

SPRINCO USA AR .308 BUFFER SPRING
M4/CAR-15 EXTRA POWER CARBINE BUFFER SPRING

The Sprinco USA Extra Power Buffer Spring is designed to improve M4 carbine reliability and was first developed in 2006 for a Force Modernization Team.
The Red spring's design load is approximately 25% greater than the White spring, enhancing performance for specific ammunition types.
It is suitable for a variety of calibers including 9mm, 6.8 SPC, 6.5 Grendel, and others, but compatibility may vary based on individual firearm specifications and ammunition loads.

Reordered

£36.90

Upgrade your AR-15 with Sprinco's 30-Round Magazine Springs! ✨ Enjoy reliable performance and easy loading for your go-to mags.

SPRINCO USA

SPRINCO USA AR-15 30-ROUND MAGAZINE SPRING, FLAT WIRE 3-PK
AR-15 30-ROUND MAGAZINE SPRINGS

Magazine Springs

Flat wire design allows for indefinite storage of 30-round AR-15 magazines at full capacity without spring fatigue.
Compatible with most magazine bodies and anti-tilt followers, including USGI, Magpul, Lancer, and Hexmag, with a few exceptions.
Made from 17-7 stainless Mil-Spec wire, these springs ensure uniform feed rates and improved support to the top rounds, while being easier to load.

Reordered

£38.90 £18.90 - £38.90

SPRINCO USA

SPRINCO USA INNER EXTRACTOR SPRING-FOR XP 5-COIL EXTRACTOR SPRING
AR .308 INNER EXTRACTOR SPRING

Extractor Springs

The XP 5-Coil spring is stronger than OEM springs, eliminating the need for a D-Fender™ ring or CRANE Viton O-Rings.
Enhanced 4-Coil springs are ideal for 18"+ barrel lengths and those who reload, while the 5-Coil may be too strong for certain bolts or long barrels.
The springs maintain performance even under extreme duty cycles and temperatures up to 750°F, and the dual spring .308 set can be used with or without CRANE O-rings.

Reordered

£11.90

Upgrade your M16/M4 with Sprinco's Enhanced Extractor Springs for reliability and performance. 🔧 Perfect for 18"+ barrels!

SPRINCO USA

SPRINCO USA ENHANCED 4-COIL BOLT CARRIER EXTRACTOR CS SPRING
M16/M4 ENHANCED CARRIER EXTRACTORS

Extractor Springs

Sprinco's Extractor Springs are heat treated and cryo processed for durability, can handle heat up to 750°F, and are plated with molybdenum disulfide for enhanced performance.
The 5-Coil spring is suitable for all 5.56 BBL lengths but may be too strong for 18"+ BBL rifles or bolts with tight tolerances, while the 4-Coil is recommended for extended duty in 18"+ BBLs.
These springs are designed for longevity, potentially lasting the lifetime of the bolt, and the .308 extractor springs can be used with or without CRANE O-rings.

Reordered

£9.90 £9.90 - £19.90

SPRINCO USA

SPRINCO USA SPRING KIT- ENHANCED BUFFER & 4-COIL BOLT EXTRACTOR SPRING
M4 CARBINE CS ENHANCED SPRING KITS

The Blue spring has approximately 15% greater load than the White spring, designed for high performance demands.
It is recommended to consult the tuning procedure reference documents before seeking further recommendations.
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.

Reordered

£39.90 £36.90 - £39.90

SPRINCO USA

SPRINCO USA SPRING KIT-STD BUFFER & HD 5-COIL BOLT EXTRACTOR SPRING
M4 CARBINE CS STANDARD SPRING KITS

The spring is designed to match the performance of a new Mil-Spec M4 Carbine Spring for reliable operation in any 5.56 Carbine.
It is ideal for those who want to maintain "fresh" Mil-Spec spring performance without frequent replacements.
SPRINCO USA's spring is a suitable option for shooters who prefer not to upgrade but desire consistent, long-term reliability.

Reordered

£39.90 £36.90 - £39.90

Upgrade your AR-15 with Sprinco's Enhanced Super Duty Ejector Spring! 🔧 Durable, heat-resistant, and designed for peak performance.

SPRINCO USA

SPRINCO USA ENHANCED SUPER DUTY EJECTOR SPRING- STANDARD POWER 3PK
AR-15 ENHANCED SUPER DUTY EJECTOR SPRING

Ejector Springs

Sprinco’s Ejector Springs are heat treated, stress relieved, and cryogenically processed for durability.
These springs are plated with a molybdenum disulfide formulation for enhanced performance.
Designed to match the loads of new Mil-Spec springs and can withstand heat up to 750ºF while maintaining their performance specifications.

Reordered

£19.90 £11.90 - £19.90

SPRINCO USA

SPRINCO USA SPRING KIT- XP BUFFER SPRING W/ DUAL EXTRACTOR SPRING SET
AR .308 PATTERN CARBINE CS SPRING KIT

The AR .308 Pattern Carbine CS Spring Kit by Sprinco USA is designed to address M4 carbine reliability issues, especially for operations in Eastern Asia.
The Red spring in the kit has approximately 25% greater load capacity than the White spring, enhancing performance for various calibers.
Users should refer to tuning procedure reference documents before seeking recommendations for the spring's use with specific firearms and ammunition loads.

Reordered

£42.90

Upgrade your .308 with Sprinco's XP 5-Coil Extractor Spring Kit! 💪 Reliable, durable, and perfect for enhanced performance. Get yours today!

SPRINCO USA

SPRINCO USA UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING 3PK
AR .308 DUAL EXTRACTOR CS SPRING UPGRADE KITS

Extractor Springs

SPRINCO USA's AR .308 Dual Extractor CS Spring Upgrade Kits feature heat-treated, cryogenically processed chrome silicon wirestock springs with molybdenum disulfide plating.
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 reliable across all 5.56 BBL lengths.
These springs maintain performance even under extreme duty cycles and temperatures up to 750°F, and may be the only extractor springs needed for the life of your bolt.

Reordered

£24.90 £14.90 - £24.90

Upgrade your rifle with the M16 Rifle CS Standard Spring Kit! 🌟 Perfect for .223, 5.56, and more. Enhance your shooting experience today!

SPRINCO USA

SPRINCO USA SPRING KIT STD BUFFER SPRING&ENHANCED 4COIL EXTRACT SPRING
M16 RIFLE CS STANDARD SPRING KIT

The Green spring is suitable for A1/A2 fixed stock rifles and VLTOR A5 buffer tubes, optimized for .223, 5.56, and similar calibers.
It may also be used for heavier calibers in long barrel rifles, but may require an H2 or H3 buffer for calibers like .308.
For over gassed heavier caliber guns with rifle length tubes, the Red or Orange carbine springs with a standard carbine buffer and spacer are recommended.

Reordered

£39.90 £36.90 - £39.90

SPRINCO USA

SPRINCO USA REDUCED POWER KIT BUFFER XP 5-COIL BOLT EXTRACTOR SPRING
M4 CARBINE CS REDUCED POWER SPRING KITS

Sprinco USA's Reduced Power Buffer Spring, known as the Yellow spring, is about 20% lighter than the White spring.
The Yellow spring was developed through collaboration with ammunition manufacturers and gunsmiths and was the preferred choice out of four samples.
For guns requiring a lighter spring, it is recommended to enlarge the gas port for improved reliability, and the Yellow spring is suitable for low power training rounds.

Reordered

£39.90 £36.90 - £39.90

SPRINCO USA

SPRINCO USA SPRING KIT-XP BUFFER W/ HD 5-COIL BOLT EXTRACTOR SPRING
M4 CARBINE/6.8 CS SPRING KIT

The Sprinco USA Extra Power Buffer Spring is designed to address M4 carbine reliability issues, specifically for challenges faced in the Eastern Asia Theatre.
The Red spring has design loads approximately 25% greater than the White spring, enhancing performance for various calibers including 9mm, 6.8 SPC, and .500 Beowulf.
Before using, refer to the tuning procedure reference documents, as the optimal spring choice may vary based on individual weapon characteristics and ammunition loads.

Reordered

£39.90

SPRINCO USA

SPRINCO USA SPRING KIT-XP BUFFER SPRING W/ DUAL EXTRACTOR SPRINGS
AR 308 M4 EXTENSION TUBE CS SPRING KIT

The Orange buffer spring is designed for heavy BCG carbine applications in .308/6.5 CM/.260 Rem calibers using standard 7" M4 extension tubes.
It is suitable for tuning over-gassed carbines in AR-10 pattern tubes with 3.25" buffers or for lesser calibers like 5.56.
This SPRINCO USA spring kit includes an extra power buffer spring and dual extractor springs for enhanced performance.

Reordered

£42.90

SPRINCO USA

SPRINCO USA WALTHER PPQ TSK COMPETITION TRIGGER KIT
WALTHER PPQ TSK COMPETITION TRIGGER KIT

Recoil Springs

Reordered

£29.90

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