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)
Shopping 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

Home Handgun Parts Barrel Parts Barrels KART PRECISION BARREL 1911 PRECISION QUALITY BARREL Support
Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for match accuracy and exceptional fit. Perfect for .45 ACP enthusiasts!
  • KART PRECISION BARREL 6" KART 1911 AUTO BARREL, .45 ACP STD
  • KART PRECISION BARREL 6" KART 1911 AUTO BARREL, .45 ACP STD

KART PRECISION BARREL 1911 PRECISION QUALITY BARREL - KART PRECISION BARREL 6" KART 1911 AUTO BARREL, .45 ACP STD

472021045

Variations:

Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for match accuracy and exceptional fit. Perfect for .45 ACP enthusiasts!
KART PRECISION BARREL 6" KART 1911 AUTO BARREL, .45 ACP STD
279.9 GBP 2 £279.90 *
Barrel Length: 6'' Barrel Weight: .3 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472021045
In stock - Is a 'Call to order' product.
279.9 GBP 2 £279.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! ⚙️ Crafted for match accuracy, it ensures a smooth finish and perfect fit for .38 Super.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .38 SUPER W/N
269.9 GBP 1 £269.90 *
Barrel Length: 5'' Barrel Weight: .37 lbs Cartridge: 38 Super Finish: Unfinished Model: Government Style: Ramp Product no.: 472020038
In stock - Is a 'Call to order' product.
269.9 GBP 1 £269.90 *
Ask question
Upgrade your 1911 with the KART Precision Quality Barrel! 🔧 Achieve unmatched accuracy with our .45 ACP standard barrel. Perfect for serious shooters!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .45 ACP STD
214.9 GBP 1 £214.90 *
Barrel Length: 5'' Barrel Weight: .27 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472020045
In stock - Is a 'Call to order' product.
214.9 GBP 1 £214.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel, crafted for match accuracy ✨. Perfect for .38 Super, featuring a mirror smooth finish.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .38 SUPER C/P
324.9 GBP 0 £324.90 *
Barrel Length: 5'' Barrel Weight: .37 lbs Cartridge: 38 Super Finish: Unfinished Model: Government Style: Ramp Product no.: 472020138
Backorderable - Is a 'Call to order' product.
324.9 GBP 0 £324.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for accuracy, it's perfect for .45 ACP enthusiasts. Experience unmatched performance!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .45 ACP W/N
239.9 GBP 5 £239.90 *
Barrel Length: 5'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramp Product no.: 472000002
In stock - Is a 'Call to order' product.
239.9 GBP 5 £239.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for unmatched accuracy and performance in .40 S&W. Perfect fit for your firearm!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .40 S&W STD
239.9 GBP 0 £239.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 40 S&W Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472000006
Backorderable - Is a 'Call to order' product.
239.9 GBP 0 £239.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for match accuracy, it ensures a smooth finish and tight tolerances.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, 9MM STD
279.9 GBP 3 £279.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 9 mm Luger Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472000009
In stock - Is a 'Call to order' product.
279.9 GBP 3 £279.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for unmatched accuracy and performance in .45 ACP. Perfect for serious shooters!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .45 ACP C/P
249.9 GBP 5 £249.90 *
Barrel Length: 5'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramp Product no.: 472000004
In stock - Is a 'Call to order' product.
249.9 GBP 5 £249.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for unmatched accuracy, choose from 5" or custom lengths for your .40 S&W.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .40 S&W C/P
269.9 GBP 0 £269.90 *
Barrel Length: 5'' Barrel Weight: .2 lbs Cartridge: 40 S&W Finish: Unfinished Model: Government Style: Ramp Product no.: 472000008
Backorderable - Is a 'Call to order' product.
269.9 GBP 0 £269.90 *
Ask question
Upgrade your 1911 with the precision-crafted 5" KART barrel for unmatched accuracy and smooth performance. ✨ Perfect for serious shooters!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, 9MM C/P
269.9 GBP 4 £269.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 9 mm Luger Finish: Unfinished Model: Government Style: Ramp Product no.: 472000011
In stock - Is a 'Call to order' product.
269.9 GBP 4 £269.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for precision and accuracy, perfect for 9mm Luger enthusiasts.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, 9MM W/N
269.9 GBP 0 £269.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 9 mm Luger Finish: Unfinished Model: Government Style: Ramp Product no.: 472000010
Backorderable - Is a 'Call to order' product.
269.9 GBP 0 £269.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for match accuracy, it ensures a smooth finish and optimal performance.
KART PRECISION BARREL 6" KART 1911 AUTO BARREL, .45 ACP W/N
219.9 GBP 0 £219.90 *
Barrel Length: 6'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramp Product no.: 472000003
Not available - Is a 'Call to order' product.
219.9 GBP 0 £219.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel. Crafted for match accuracy, it ensures a smooth finish and tight tolerances. ✨ Perfect for .40 S&W!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .40 S&W W/N
269.9 GBP 4 £269.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 40 S&W Finish: Unfinished Model: Government Style: Ramp Product no.: 472000007
In stock - Is a 'Call to order' product.
269.9 GBP 4 £269.90 *
Ask question
Upgrade your 1911 with the precision quality 4.25" Commander Barrel for unmatched accuracy. ✨ Crafted from ordnance steel for durability.
KART PRECISION BARREL 4.25" COMMANDER BARREL, .45 ACP STD
239.9 GBP 0 £239.90 *
Barrel Length: 4.25'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Commander Style: Non-Ramp Product no.: 472000013
Backorderable - Is a 'Call to order' product.
239.9 GBP 0 £239.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔥 Achieve match accuracy with our 6" 9mm barrel, crafted from high-quality ordnance steel.
KART PRECISION BARREL 6" 9MM WILSON/NOWLIN RAMP BARREL
324.9 GBP 0 £324.90 *
Barrel Length: 6'' Barrel Weight: .355 lbs Cartridge: 9 mm Luger Finish: Natural Model: Government Style: Match Grade, Ramp Product no.: 472000015
Backorderable - Is a 'Call to order' product.
324.9 GBP 0 £324.90 *
Ask question
Upgrade your 1911 with the precision quality 6" barrel from KART! 🛠️ Achieve match accuracy with exceptional tolerances and smooth finish.
KART PRECISION BARREL 6" KART 1911 AUTO BARREL, 45 ACP C/P
249.9 GBP 0 £249.90 *
Barrel Length: 6'' Barrel Weight: .3 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramped Product no.: 472000017
Not available - Is a 'Call to order' product.
249.9 GBP 0 £249.90 *
Ask question
214.9 324.9 16 GBP
279.9 GBP £279.90

Prices inclusive of duty & VAT.

Product no.: 472021045

Mfr. No.: NONE

Forged from ordnance steel to strict, national match specs; rifled by a proprietary technique that holds lands and grooves to exceptionally close tolerances and leaves the surface finish mirror smooth. Air gauged to maintain .0002" tolerance through the bore. Feed ramps are throated for wadcutter ammo. Standard Barrel - Non-ramped, oversize hood, top and bottom lugs to achieve an exact fit for optimum match accuracy. Ramped Barrel - Fully supports the case head; gives direct feeding from magazine to chamber. Requires machining of frame. Gunsmithing fitting required. Std - Standard barrel, non-ramped. W/N - Wilson/Nowlin Ramp. C/P - Clark/Para Ordnance Ramp
In stock - Is a 'Call to order' product.
7
Is a 'Call to order' product.
Wish List Ask question
Requires order by phone

Variations:

Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for match accuracy and exceptional fit. Perfect for .45 ACP enthusiasts!
KART PRECISION BARREL 6" KART 1911 AUTO BARREL, .45 ACP STD
279.9 GBP 2 £279.90 *
Barrel Length: 6'' Barrel Weight: .3 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472021045
In stock - Is a 'Call to order' product.
279.9 GBP 2 £279.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! ⚙️ Crafted for match accuracy, it ensures a smooth finish and perfect fit for .38 Super.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .38 SUPER W/N
269.9 GBP 1 £269.90 *
Barrel Length: 5'' Barrel Weight: .37 lbs Cartridge: 38 Super Finish: Unfinished Model: Government Style: Ramp Product no.: 472020038
In stock - Is a 'Call to order' product.
269.9 GBP 1 £269.90 *
Ask question
Upgrade your 1911 with the KART Precision Quality Barrel! 🔧 Achieve unmatched accuracy with our .45 ACP standard barrel. Perfect for serious shooters!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .45 ACP STD
214.9 GBP 1 £214.90 *
Barrel Length: 5'' Barrel Weight: .27 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472020045
In stock - Is a 'Call to order' product.
214.9 GBP 1 £214.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel, crafted for match accuracy ✨. Perfect for .38 Super, featuring a mirror smooth finish.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .38 SUPER C/P
324.9 GBP 0 £324.90 *
Barrel Length: 5'' Barrel Weight: .37 lbs Cartridge: 38 Super Finish: Unfinished Model: Government Style: Ramp Product no.: 472020138
Backorderable - Is a 'Call to order' product.
324.9 GBP 0 £324.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for accuracy, it's perfect for .45 ACP enthusiasts. Experience unmatched performance!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .45 ACP W/N
239.9 GBP 5 £239.90 *
Barrel Length: 5'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramp Product no.: 472000002
In stock - Is a 'Call to order' product.
239.9 GBP 5 £239.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for unmatched accuracy and performance in .40 S&W. Perfect fit for your firearm!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .40 S&W STD
239.9 GBP 0 £239.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 40 S&W Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472000006
Backorderable - Is a 'Call to order' product.
239.9 GBP 0 £239.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for match accuracy, it ensures a smooth finish and tight tolerances.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, 9MM STD
279.9 GBP 3 £279.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 9 mm Luger Finish: Unfinished Model: Government Style: Non-Ramp Product no.: 472000009
In stock - Is a 'Call to order' product.
279.9 GBP 3 £279.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for unmatched accuracy and performance in .45 ACP. Perfect for serious shooters!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .45 ACP C/P
249.9 GBP 5 £249.90 *
Barrel Length: 5'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramp Product no.: 472000004
In stock - Is a 'Call to order' product.
249.9 GBP 5 £249.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for unmatched accuracy, choose from 5" or custom lengths for your .40 S&W.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .40 S&W C/P
269.9 GBP 0 £269.90 *
Barrel Length: 5'' Barrel Weight: .2 lbs Cartridge: 40 S&W Finish: Unfinished Model: Government Style: Ramp Product no.: 472000008
Backorderable - Is a 'Call to order' product.
269.9 GBP 0 £269.90 *
Ask question
Upgrade your 1911 with the precision-crafted 5" KART barrel for unmatched accuracy and smooth performance. ✨ Perfect for serious shooters!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, 9MM C/P
269.9 GBP 4 £269.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 9 mm Luger Finish: Unfinished Model: Government Style: Ramp Product no.: 472000011
In stock - Is a 'Call to order' product.
269.9 GBP 4 £269.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔧 Crafted for precision and accuracy, perfect for 9mm Luger enthusiasts.
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, 9MM W/N
269.9 GBP 0 £269.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 9 mm Luger Finish: Unfinished Model: Government Style: Ramp Product no.: 472000010
Backorderable - Is a 'Call to order' product.
269.9 GBP 0 £269.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🛠️ Crafted for match accuracy, it ensures a smooth finish and optimal performance.
KART PRECISION BARREL 6" KART 1911 AUTO BARREL, .45 ACP W/N
219.9 GBP 0 £219.90 *
Barrel Length: 6'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramp Product no.: 472000003
Not available - Is a 'Call to order' product.
219.9 GBP 0 £219.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel. Crafted for match accuracy, it ensures a smooth finish and tight tolerances. ✨ Perfect for .40 S&W!
KART PRECISION BARREL 5" KART 1911 AUTO BARREL, .40 S&W W/N
269.9 GBP 4 £269.90 *
Barrel Length: 5'' Barrel Weight: .3 lbs Cartridge: 40 S&W Finish: Unfinished Model: Government Style: Ramp Product no.: 472000007
In stock - Is a 'Call to order' product.
269.9 GBP 4 £269.90 *
Ask question
Upgrade your 1911 with the precision quality 4.25" Commander Barrel for unmatched accuracy. ✨ Crafted from ordnance steel for durability.
KART PRECISION BARREL 4.25" COMMANDER BARREL, .45 ACP STD
239.9 GBP 0 £239.90 *
Barrel Length: 4.25'' Barrel Weight: .2 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Commander Style: Non-Ramp Product no.: 472000013
Backorderable - Is a 'Call to order' product.
239.9 GBP 0 £239.90 *
Ask question
Upgrade your 1911 with the KART Precision Barrel! 🔥 Achieve match accuracy with our 6" 9mm barrel, crafted from high-quality ordnance steel.
KART PRECISION BARREL 6" 9MM WILSON/NOWLIN RAMP BARREL
324.9 GBP 0 £324.90 *
Barrel Length: 6'' Barrel Weight: .355 lbs Cartridge: 9 mm Luger Finish: Natural Model: Government Style: Match Grade, Ramp Product no.: 472000015
Backorderable - Is a 'Call to order' product.
324.9 GBP 0 £324.90 *
Ask question
Upgrade your 1911 with the precision quality 6" barrel from KART! 🛠️ Achieve match accuracy with exceptional tolerances and smooth finish.
KART PRECISION BARREL 6" KART 1911 AUTO BARREL, 45 ACP C/P
249.9 GBP 0 £249.90 *
Barrel Length: 6'' Barrel Weight: .3 lbs Cartridge: 45 Auto (ACP) Finish: Unfinished Model: Government Style: Ramped Product no.: 472000017
Not available - Is a 'Call to order' product.
249.9 GBP 0 £249.90 *
Ask question

Description:

Uncompromising Quality For Added Performance & Better Accuracy
Forged from ordnance steel to strict, national match specs; rifled by a proprietary technique that holds lands and grooves to exceptionally close tolerances and leaves the surface finish mirror smooth. Air gauged to maintain .0002" tolerance through the bore. Feed ramps are throated for wadcutter ammo. Standard Barrel - Non-ramped, oversize hood, top and bottom lugs to achieve an exact fit for optimum match accuracy. Ramped Barrel - Fully supports the case head; gives direct feeding from magazine to chamber. Requires machining of frame. Gunsmithing fitting required. Std - Standard barrel, non-ramped. W/N - Wilson/Nowlin Ramp. C/P - Clark/Para Ordnance Ramp

SPECS: 4150 ordnance steel, in-the-white. Available in 5” (12.7cm), 6” (15.2cm), or Commander 4.25” (10.8cm) lengths.

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The barrel is forged from ordnance steel with national match specs, featuring a proprietary rifling technique for smooth lands and grooves, and air gauged for .0002" tolerance.
  2. Available in non-ramped (standard) and ramped versions, with the ramped barrel requiring frame machining and offering direct magazine-to-chamber feeding.
  3. Manufactured by KART PRECISION BARREL, the product comes in unfinished 4150 ordnance steel and is available in three lengths: 5", 6", and Commander 4.25".

Attributes

  • Barrel Length: 6''
  • Barrel Weight: .3 lbs
  • Cartridge: 45 Auto (ACP)
  • Finish: Unfinished
  • Model: Government
  • Style: Non-Ramp
  • Weapon type: 1911
  • Delivery weight: 0.091kg
  • Shipping height: 10mm
  • Shipping width: 48mm
  • Shipping length: 163mm

Item details

Made in USA
US export classification: 0A501.c

Customers reviews

Customer ratings (7)

4.9 / 5
Definitely recommended

Brownells USA Excellent Gunsmith Fit Barrel 09/03/2017

This is a really nice gunsmith fit barrel. It is oversized in all the right areas (hood width/length and lower lugs). Geometry was spot on and while it required removing material from the hood and lugs, it wasn't excessive. Link pin hole required a light pass with a reamer to get a good fit with a .154" pin. Once everything was fit, the chamber only required a few turns with a finish reamer to complete the installation.

Definitely recommended

Brownells USA The best 1911 barrel hands down 08/01/2017

Accept no substitutes, Kart barrels are the best hands down. Ask any of the top 1911 smiths and they will agree. Fred uses a proprietary honing process not even his wife knows. His barrels have the best bores you'll ever see. Oversized in the right spots for gunsmith fit.

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