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

Gunsmith Tools Small Hardware Bulk Spring Kits BROWNELLS DETENT BALL SPRING REFILL 9/34" (3.6MM) 20 PACK Support

Get 20 correctly-sized detent ball springs in one kit, saving time and money, with double value from each spring for your gunsmithing needs.

BROWNELLS DETENT BALL SPRING REFILL 9/34" (3.6MM) 20 PACK

050806021402 080820140
Variations
Filters:
Diameter (in)
1/16
1/4
1/8
3/16
3/32
5/32
7/32
9/64
Variations:

Variations:

Get 20 correctly-sized detent ball springs in one kit, saving time and money, with double value from each spring for your gunsmithing needs.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 9/34" (3.6MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 9/64 Length: 3/4 in Quantity: 20 Product no.: 080820140
In stock
19.9 GBP 1 £19.90 *
Ensure optimal performance with Brownells 1/16" Detent Ball Spring Refill kit, featuring tempered steel springs, ¾" long, sold in convenient 20 packs.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 1/16" (1.6MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 1/16 Length: 3/4 in Quantity: 20 Product no.: 080820062
In stock
19.9 GBP 1 £19.90 *
Ensure your firearms function flawlessly with the Brownells Detent Ball Spring Refill, featuring 20 correctly-sized tempered steel springs, ¾" long.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 3/32" (2.4MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 3/32 Length: 3/4 in Quantity: 20 Product no.: 080820093
In stock
19.9 GBP 1 £19.90 *
The Brownells Detent Ball Spring Kit includes 20 correctly-sized springs for popular detent ball sizes, saving you time and money with double the value.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 1/8" (3.2MM) 20 PACK
19.9 GBP 4 £19.90 *
In stock
Diameter (in): 1/8 Length: 3/4 in Quantity: 20 Product no.: 080820125
In stock
19.9 GBP 4 £19.90 *
Ensure your firearm operates smoothly with the Brownells Detent Ball Spring Refill, featuring 20 tempered steel springs, each 5/32" (4.0mm) long.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 5/32" (4.0MM) 20 PACK
19.9 GBP 2 £19.90 *
In stock
Diameter (in): 5/32 Length: 3/4 in Quantity: 20 Product no.: 080820156
In stock
19.9 GBP 2 £19.90 *
The Brownells Detent Ball Spring Kit includes 20 correctly-sized springs for the most popular detent ball sizes, saving you time and money in your gunsmithing tasks.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 3/16" (4.8MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 3/16 Length: 3/4 in Quantity: 20 Product no.: 080820187
In stock
19.9 GBP 1 £19.90 *
Ensure reliable performance with Brownells 7/32" Detent Ball Spring Refill Kit, featuring 20 tempered steel springs, perfectly sized for your detent ball needs.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 7/32" (5.5MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 7/32 Length: 3/4 in Quantity: 20 Product no.: 080820218
In stock
19.9 GBP 1 £19.90 *
Ensure optimal performance with Brownells Detent Ball Spring Refill, featuring 1/4" (6.3mm) tempered steel springs, ¾" long, sold in packs of 20.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 1/4" (6.3MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 1/4 Length: 3/4 in Quantity: 20 Product no.: 080820250
In stock
19.9 GBP 1 £19.90 *
The Brownells Detent Ball Spring Kit features correctly-sized springs made from tempered steel, measuring ¾" long, and comes in convenient 20 per pak refills.
DETENT BALL SPRING KIT
89.9 GBP 0 £89.90 *
Backorderable
Diameter (in): 1/16, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 9/64 Quantity: 160 Product no.: 080820000
Backorderable
89.9 GBP 0 £89.90 *
19.9 89.9 9 GBP
19.9 GBP £19.90

Prices inclusive of duty & VAT.

Product no.: 080820140

050806021402 Never search for the right detent ball spring again. Save your valuable time, and money, with this Kit of correctly-sized "in-the-hole" coil springs - a perfect match for each and every size contained in our Detent Ball Kit. You get 20 each of eight springs to match the eight most popular sizes of detent balls used in the gunsmithing industry. The springs are made with two "closed" (finished) ends and enough length that one spring can usually be made into two; a double value.
In stock 1 pcs. in the USA warehouse
Be the first to rate this product
1
2
3
4
5
6
7
8
9
10+
£19.90

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

Delivery time approx. 7-14 days.

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.
  • Correctly-sized for convenience
  • 20 springs per pack
  • Tempered steel durability
Wish List Ask question
19.9 89.9 9 GBP
Description Specification Customers reviews Accessories

BROWNELLS DETENT BALL SPRING REFILL 9/34" (3.6MM) 20 PACK

19.9 GBP £19.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+
£19.90

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:

Ensure You Always Have the Right Detent Ball Spring on Hand

Never search for the right detent ball spring again. Save your valuable time and money with this Kit of correctly-sized "in-the-hole" coil springs - a perfect match for each and every size contained in our Detent Ball Kit.

Product Features:

  • Includes 20 each of eight springs to match the eight most popular sizes of detent balls used in the gunsmithing industry.
  • Springs are made with two "closed" (finished) ends for durability.
  • Each spring has enough length that one can usually be made into two; offering double the value.
  • Specifications: Tempered steel, ¾" long. Refills sold 20 per pack.

With this refill kit from BROWNELLS, you can ensure that your gunsmithing tasks are completed efficiently and effectively.



Attributes

  • Diameter (in): 
    9/64
  • Length: 
    3/4 in
  • Quantity: 20
  • Delivery weight: 0.005kg
  • Shipping width: 83mm
  • Shipping length: 146mm
  • UPC: 050806021402

Item details

Made in USA

Customers reviews

Customer ratings (0)

0 / 5

Variations:

Get 20 correctly-sized detent ball springs in one kit, saving time and money, with double value from each spring for your gunsmithing needs.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 9/34" (3.6MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 9/64 Length: 3/4 in Quantity: 20 Product no.: 080820140
In stock
19.9 GBP 1 £19.90 *
Ensure optimal performance with Brownells 1/16" Detent Ball Spring Refill kit, featuring tempered steel springs, ¾" long, sold in convenient 20 packs.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 1/16" (1.6MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 1/16 Length: 3/4 in Quantity: 20 Product no.: 080820062
In stock
19.9 GBP 1 £19.90 *
Ensure your firearms function flawlessly with the Brownells Detent Ball Spring Refill, featuring 20 correctly-sized tempered steel springs, ¾" long.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 3/32" (2.4MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 3/32 Length: 3/4 in Quantity: 20 Product no.: 080820093
In stock
19.9 GBP 1 £19.90 *
The Brownells Detent Ball Spring Kit includes 20 correctly-sized springs for popular detent ball sizes, saving you time and money with double the value.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 1/8" (3.2MM) 20 PACK
19.9 GBP 4 £19.90 *
In stock
Diameter (in): 1/8 Length: 3/4 in Quantity: 20 Product no.: 080820125
In stock
19.9 GBP 4 £19.90 *
Ensure your firearm operates smoothly with the Brownells Detent Ball Spring Refill, featuring 20 tempered steel springs, each 5/32" (4.0mm) long.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 5/32" (4.0MM) 20 PACK
19.9 GBP 2 £19.90 *
In stock
Diameter (in): 5/32 Length: 3/4 in Quantity: 20 Product no.: 080820156
In stock
19.9 GBP 2 £19.90 *
The Brownells Detent Ball Spring Kit includes 20 correctly-sized springs for the most popular detent ball sizes, saving you time and money in your gunsmithing tasks.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 3/16" (4.8MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 3/16 Length: 3/4 in Quantity: 20 Product no.: 080820187
In stock
19.9 GBP 1 £19.90 *
Ensure reliable performance with Brownells 7/32" Detent Ball Spring Refill Kit, featuring 20 tempered steel springs, perfectly sized for your detent ball needs.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 7/32" (5.5MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 7/32 Length: 3/4 in Quantity: 20 Product no.: 080820218
In stock
19.9 GBP 1 £19.90 *
Ensure optimal performance with Brownells Detent Ball Spring Refill, featuring 1/4" (6.3mm) tempered steel springs, ¾" long, sold in packs of 20.
DETENT BALL SPRING KIT - DETENT BALL SPRING REFILL 1/4" (6.3MM) 20 PACK
19.9 GBP 1 £19.90 *
In stock
Diameter (in): 1/4 Length: 3/4 in Quantity: 20 Product no.: 080820250
In stock
19.9 GBP 1 £19.90 *
The Brownells Detent Ball Spring Kit features correctly-sized springs made from tempered steel, measuring ¾" long, and comes in convenient 20 per pak refills.
DETENT BALL SPRING KIT
89.9 GBP 0 £89.90 *
Backorderable
Diameter (in): 1/16, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 9/64 Quantity: 160 Product no.: 080820000
Backorderable
89.9 GBP 0 £89.90 *

Customers also bought

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