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 Barrel Parts Thread Protectors YANKEE HILL MACHINE CO., INC. .578"-28 PISTOL BARREL .650 OD Support

.578"-28 Pistol Thread Protectors by Yankee Hill Machine Co. feature a knurled exterior for easy installation, preventing barrel thread damage when not in use.

YANKEE HILL MACHINE CO., INC. .578"-28 PISTOL BARREL .650 OD

100009097
Variations
Filters:
Variations:

Variations:

.578"-28 Pistol Thread Protectors by Yankee Hill Machine Co. feature a knurled exterior for easy installation, preventing barrel thread damage when not in use.
PISTOL THREAD PROTECTORS - .578"-28 PISTOL BARREL .650 OD
Not available
Color: Silver Product no.: 100009097
Not available
19.9 GBP 0 £19.90 *
Protect your barrel threads with Yankee Hill Machine's knurled Stainless Steel Pistol Thread Protectors, easy to install and perfect for switching muzzle devices.
PISTOL THREAD PROTECTORS - 1/2"-28 PISTOL BARREL .570 OD
25.9 GBP 0 £25.90 *
Backorderable
Color: Silver Product no.: 100009098
Backorderable
25.9 GBP 0 £25.90 *
.570 Pistol Barrel Thread Protector by Yankee Hill Machine Co. features a knurled exterior for easy installation, preventing thread damage when not using a muzzle device.
PISTOL THREAD PROTECTORS - .570 PISTOL BARREL TREAD PROTECTOR 1/2-28 PLATED BLACK
26.9 GBP 0 £26.90 *
Backorderable
Color: Black Product no.: 100050341
Backorderable
26.9 GBP 0 £26.90 *
25.9 26.9 3 GBP

Not available.

Product no.: 100009097

Mfr. No.: YHM-3426

Notify on availability 19.9 GBP
25.9 26.9 3 GBP
Description Specification Customers reviews Accessories

YANKEE HILL MACHINE CO., INC. .578"-28 PISTOL BARREL .650 OD

Notify on availability

Description:

Protect Your Pistol Barrel with Precision

Introducing the PISTOL THREAD PROTECTORS by YANKEE HILL MACHINE CO., INC., designed to safeguard your pistol barrel threads when a muzzle device is not in use.

Features:

  • Knurled exterior for easy handling
  • Machined from durable Stainless Steel
  • Available for the following threads:
    • 1/2"-28: protector has a .570 OD
    • 9/16"-24: protector has a .633 OD
    • .578"-28: protector has a .650 OD

Benefits:

  • Prevents damage to your barrel threads when a muzzle device is not installed.
  • Especially handy for quick changes between muzzle devices.
  • Knurled exterior makes installation and removal a breeze.

Ensure the longevity of your firearm with these essential thread protectors from YANKEE HILL MACHINE CO., INC.. Ideal for any firearms enthusiast looking to maintain their equipment in top condition.



Attributes

  • Colour: 
    Silver
  • Delivery weight: 0.005kg
  • Shipping height: 1mm
  • Shipping width: 57mm
  • Shipping length: 89mm

Item details

Made in USA
US export classification: 0A501.x

Customers reviews

Customer ratings (1)

5 / 5
Definitely recommended

Brownells USA finishing touch for KKM G30 with trim 25/12/2013

I chose the YHM protector to finish the KKM barrel on my Glock 30 (KKM was out of stock) based on the matching stainless finish and workmanlike internal shoulder. The actual item is very nice with crisp knurl (beware holdster rub!), proper lands for clean threads, and no machine marks. Installed, it looks like the barrel was machined that way. I did find the length a tad long and left an internal gap between the barrel crown and the protector shoulder. I trimmed about 0.040" from the protector length to close that gap. Not a real function item and easy to do on my lathe so I am leaving the protector at five stars.

Variations:

.578"-28 Pistol Thread Protectors by Yankee Hill Machine Co. feature a knurled exterior for easy installation, preventing barrel thread damage when not in use.
PISTOL THREAD PROTECTORS - .578"-28 PISTOL BARREL .650 OD
Not available
Color: Silver Product no.: 100009097
Not available
19.9 GBP 0 £19.90 *
Protect your barrel threads with Yankee Hill Machine's knurled Stainless Steel Pistol Thread Protectors, easy to install and perfect for switching muzzle devices.
PISTOL THREAD PROTECTORS - 1/2"-28 PISTOL BARREL .570 OD
25.9 GBP 0 £25.90 *
Backorderable
Color: Silver Product no.: 100009098
Backorderable
25.9 GBP 0 £25.90 *
.570 Pistol Barrel Thread Protector by Yankee Hill Machine Co. features a knurled exterior for easy installation, preventing thread damage when not using a muzzle device.
PISTOL THREAD PROTECTORS - .570 PISTOL BARREL TREAD PROTECTOR 1/2-28 PLATED BLACK
26.9 GBP 0 £26.90 *
Backorderable
Color: Black Product no.: 100050341
Backorderable
26.9 GBP 0 £26.90 *

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