Gunsmith Tools & SuppliesBrownellsSold by Brownells

Brownells

Detent Ball Spring Kit - Detent Ball Spring Refill 1/16'''' (1.6mm) 20 Pack

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

20-pack Refill

Kit for detent ball springs

Sized Match

Detent Ball Kit

Includes Eight

Spring sizes for common gunsmithing

Tempered Steel

Construction

3/4 Inch

Closed, finished ends

$14.99
View on Brownells

You'll be taken to Brownells to complete your purchase.

Hunter's Outpost earns a commission from affiliate links at no extra cost to you.

SKU: 080820062

Overview

This refill kit is intended for gunsmithing work where having the right detent ball spring on hand matters. It includes correctly sized in-the-hole coil springs matched to the eight most popular detent ball sizes used in the gunsmithing industry, helping reduce time spent searching for a fit. The springs are made with two closed ends and are supplied in a 20-pack, with enough length that one spring can usually be made into two. It is a practical option for maintaining a ready supply of matching springs for detent ball kits.

Why Hunters Choose the Brownells

Correctly Sized

To match the Detent Ball

Includes 20

Springs for each of eight

Closed, Finished

Ends support gunsmithing use

One Spring

Can usually be made into

Tempered Steel

Construction

Key Features

  • 20-pack refill kit for detent ball springs
  • Sized to match the Detent Ball Kit
  • Includes eight spring sizes for common gunsmithing detent balls
  • Tempered steel construction
  • 3/4 inch long springs with closed, finished ends
  • One spring can usually be made into two

Best Used For

  • Gunsmiths replacing detent ball springs in common firearm repair and maintenance work
  • Shop owners keeping matched spring sizes on hand for repeated detent ball kit refills
  • Detail-oriented builders needing correctly sized coil springs for organized bench work
  • Users who want a refill pack for Brownells detent ball kit sizes without searching individually

Specifications

Blade SteelTempered steel
CompatibilityMatches Detent Ball Kit
End TypeClosed (finished) ends
Length3/4 in
Pack Quantity20
Spring TypeIn-the-hole coil spring

Pros

  • Correctly sized to match the Detent Ball Kit
  • Includes 20 springs for each of eight popular detent ball sizes
  • Closed, finished ends support gunsmithing use
  • One spring can usually be made into two
  • Tempered steel construction

Considerations & Trade-offs

  • Sized to match the corresponding detent ball kit, so it is intended as a refill rather than a standalone spring assortment.
  • The kit is organized around eight popular detent ball sizes, which may not cover every gunsmithing application.
  • Each spring is 3/4" long, so the usable length depends on the specific job and whether it can be divided as noted.
  • Sold as a 20-pack refill, which is practical for repeat use but may be more than needed for occasional projects.

Suggested Comparisons

  • Gunsmithing spring assortment
  • Detent ball kit refill
  • Firearm maintenance parts
  • Small parts storage and organization

Suggested Accessories

  • Gunsmithing bench block
  • Detent ball kit
  • Small parts organizer
  • Spring assortment kit

Frequently Asked Questions

What is this spring kit intended to be used with?

It is described as a correctly-sized refill kit for the Detent Ball Kit, with springs matched to the eight most popular detent ball sizes used in the gunsmithing industry.

How many springs are included?

The product is sold as a 20-pack refill.

What material are the springs made from?

The listed specification says tempered steel.

Are the spring ends finished or open?

The description says the springs have two closed, finished ends.

What size are the springs?

The listed specification says the springs are 3/4 inch long.