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

Handgun Parts Trigger Group Parts Hammer Parts Hammer Extensions CARLSONS HAMMER EXPANDER FOR HENRY GOLDEN BOY RIMFIRE RIFLES BLACK Support

Enhance your shooting experience with the Carlson's Hammer Expander, offering positive, non-slip cocking for exposed hammers on rifles, shotguns, and handguns.
-9 %

CARLSONS HAMMER EXPANDER FOR HENRY GOLDEN BOY RIMFIRE RIFLES BLACK

723189001148 430107918
Variations
Filters:
Variations:

Variations:

-9 %
Enhance your shooting experience with the Carlson's Hammer Expander, offering positive, non-slip cocking for exposed hammers on rifles, shotguns, and handguns.
HAMMER EXPANDER - HAMMER EXPANDER FOR HENRY GOLDEN BOY RIMFIRE RIFLES BLACK
19.9 GBP 1 £19.90 * £21.90
In stock
Make: Henry Model: Golden Boy Product no.: 430107918
In stock
19.9 GBP 1 £19.90 * £21.90
-9 %
Enhance safe cocking with the Carlson's Hammer Expander, featuring a knurled aluminum design for better grip on exposed hammers of rifles, shotguns, and handguns.
HAMMER EXPANDER - HAMMER EXPANDER FOR T.C. CONTENDER BLACK
19.9 GBP 4 £19.90 * £21.90
In stock
Make: Thompson Center Model: Encore Product no.: 100000129
In stock
19.9 GBP 4 £19.90 * £21.90
-9 %
Enhance your shooting experience with Carlson's Hammer Expander, providing a secure, non-slip grip for safe cocking of exposed hammers on rifles and handguns.
HAMMER EXPANDER - HAMMER EXPANDER FOR HENRY BIG BOY RIFLES BLACK
19.9 GBP 4 £19.90 * £21.90
In stock
Make: Henry Model: Big Boy Product no.: 430107917
In stock
19.9 GBP 4 £19.90 * £21.90
19.9 19.9 3 GBP
-9 %
MSRP £21.90
19.9 GBP £19.90

Prices inclusive of duty & VAT.

Product no.: 430107918

Mfr. No.: 00114

723189001148 Knurled aluminum bar clamps to hammer spur; gives added thumb purchase for safe cocking with many scope-equipped, exposed hammer, rifles, shotguns and handguns. Ambidextrous, may require fitting.
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+
-9 %
MSRP £21.90
£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.
  • Enhanced thumb grip
  • Ambidextrous design
  • Safe cocking support
Wish List Ask question
19.9 19.9 3 GBP
Description Specification Customers reviews Accessories

CARLSONS HAMMER EXPANDER FOR HENRY GOLDEN BOY RIMFIRE RIFLES BLACK

-9 %
MSRP £21.90
19.9 GBP £19.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+
-9 %
MSRP £21.90
£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:

Enhance Your Shooting Experience with the HAMMER EXPANDER

The CARLSONS HAMMER EXPANDER is specifically designed for the Henry Golden Boy Rimfire Rifles, providing a reliable solution for improved cocking of exposed hammers.

Product Features

  • Positive, Non-Slip Cocking: Ensures safe and secure cocking for a variety of firearms.
  • Knurled Aluminum Bar: Clamps to the hammer spur, offering enhanced thumb purchase.
  • Ambidextrous Design: Suitable for both left and right-handed shooters, though some fitting may be required.

Specifications

Constructed from durable aluminum with a sleek black anodized finish, the HAMMER EXPANDER measures:

  • Length: 1 ½" (3.8cm)
  • Diameter: 3/8" (9.5mm)
  • Hammer Slot Width: .508" (12.9cm)
  • Height: .190" (4.8mm)

Upgrade your firearm's functionality with the CARLSONS HAMMER EXPANDER and enjoy a more confident shooting experience.



Attributes

  • Model: 
    Golden Boy
  • Weapon type: 
    Henry
  • Delivery weight: 0.036kg
  • Shipping height: 203mm
  • Shipping width: 95mm
  • Shipping length: 19mm
  • UPC: 723189001148

Item details

Made in USA
US export classification: 0A501.x

Customers reviews

Customer ratings (0)

0 / 5

Variations:

-9 %
Enhance your shooting experience with the Carlson's Hammer Expander, offering positive, non-slip cocking for exposed hammers on rifles, shotguns, and handguns.
HAMMER EXPANDER - HAMMER EXPANDER FOR HENRY GOLDEN BOY RIMFIRE RIFLES BLACK
19.9 GBP 1 £19.90 * £21.90
In stock
Make: Henry Model: Golden Boy Product no.: 430107918
In stock
19.9 GBP 1 £19.90 * £21.90
-9 %
Enhance safe cocking with the Carlson's Hammer Expander, featuring a knurled aluminum design for better grip on exposed hammers of rifles, shotguns, and handguns.
HAMMER EXPANDER - HAMMER EXPANDER FOR T.C. CONTENDER BLACK
19.9 GBP 4 £19.90 * £21.90
In stock
Make: Thompson Center Model: Encore Product no.: 100000129
In stock
19.9 GBP 4 £19.90 * £21.90
-9 %
Enhance your shooting experience with Carlson's Hammer Expander, providing a secure, non-slip grip for safe cocking of exposed hammers on rifles and handguns.
HAMMER EXPANDER - HAMMER EXPANDER FOR HENRY BIG BOY RIFLES BLACK
19.9 GBP 4 £19.90 * £21.90
In stock
Make: Henry Model: Big Boy Product no.: 430107917
In stock
19.9 GBP 4 £19.90 * £21.90

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