Barrels
Premium HK Barrels and Firearm Parts to upgrade your HK firearm with precision-engineered, CHF (Cold Hammer Forged) barrels, and premium parts built for reliability, unparalleled accuracy, and long-term performance. Our OEM and aftermarket HK barrels deliver exceptional quality and fit for pistols, rifles, and submachine guns.
Key Features:
- CHF (Cold Hammer Forged) construction for unmatched durability and precision
- Engineered for superior accuracy and shot consistency
- Made from premium, corrosion-resistant materials
- Designed for performance, competition, and tactical applications
- OEM fit and easy installation across multiple HK platforms
Enhance your HK pistol or rifle with the best high-performance CHF barrels engineered for excellence, trusted by professionals and firearm enthusiasts.
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HK MP5K, SP89, SP5K Barrel - 9mm - 3 Lug - Threaded 1/2x32
B&T Brugger & Thomet
$399.95B&T HK MP5K/SP5K/SP89 9mm Barrel - Threaded 1/2x32 - 3-Lug New from B&T Switzerland, this cold hammer-forged (CHF) and nitrided barrel is specifically designed for the HK SP5K. Manufactured to exact HK factory specifications, it features a...HKP-17908$399.95 -
Out Of Stock
HK MP5SD Barrel - 9mm - Threaded 18x1
HKP HK Parts
$169.95HKP MP5SD 9mm Barrel - Threaded 18x1 Made in the USA from 416 stainless steel, this high-quality barrel undergoes the highly desirable nitride process for a super hard, durable finish. Precision milled to the latest specifications, it features...HKP-17755$169.95 -
HK G3, M61 Barrel - 7.62 - 17.7" - Threaded 15x1 RH
RCM
$274.95RCM HK G3 & M61 (7.62x51/.308) Barrel - Threaded 15x1 RH Brand New Barrel for the Pre-G3 HK M61. The M61 was produced by H&K in Germany and has some aesthetic features that the final G3 rifles did not incorporate. A true piece of history can be...HKP-21353$274.95 -
HK USPC, USPC Tactical Barrel - .45 ACP - 4.47" - Threaded 16x1 LH
RCM
$250.00RCM HK USPC .45 ACP Barrel - Threaded 16x1 LH HK USPC .45 ACP & HK USPC Tactical .45 ACP barrel with 16x1 threaded design, compatible with various flash hiders and sound suppressors. Unlike the factory USPC Tactical .45 ACP barrel with metric 16x1...HKP-20129$250.00 -
On Sale
Thread Protector - .40 S&W - 14.5x1 LH - Titanium
HKP HK Parts
Now: $13.95Was: $24.95HKP HK .40 S&W Thread Protector - Threaded 14.5x1 LH - Titanium Titanium .40 S&W tactical barrel thread protector cap. Each thread protector has a built in O-ring to allow the best fit possible to prevent the thread protector from coming...HKP-17961Now: $13.95Was: $24.95 -
HK USP Thread Protector - .45 ACP - 16X1 LH
HKP HK Parts
$19.95HKP HK USP .45 ACP 16X1 LH Thread Protector Thread protector for 16X1 left-hand .45 ACP barrels. Compatible With: HK USP .45 & Compact HK45 & Compact HK UMP/USC Firearms with 16X1 left-hand threaded .45 ACP barrels NOT compatible...HKP-22177$19.95 -
HK P30L Conversion Barrel - .40 S&W to 9mm - Threaded 1/2x28
RCM
$214.95RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 1/2x28 This 9mm conversion barrel is a drop-in replacement that allows your P30L to shoot the ubiquitous 9mm cartridge. The conversion barrel features a standard 1/2x28 thread pitch and includes...HKP-21785$214.95 -
HK45C, HK45C Tactical Barrel - .45 ACP - 5.6" - Threaded 16x1 LH
RCM
$250.00RCM HK45C/45C .45 ACP Tactical Barrel - Threaded 16x1 LH US-made HK45C & HK45C Tactical threaded barrel, compatible with a range of flash hiders and sound suppressors. Unlike the factory HK45C Tactical barrel with metric 16x1 LH threads, this...HKP-20131$250.00 -
HK45 Thread Protector - Threaded .578x28 RH
USA
$24.95HK45 .45 ACP Thread Protector - Threaded .578x28 RH Made in the USA, HK45 .45 ACP thread protector, for full size & compact barrels with a 578x28 RH. Made from stainless steel with a nitride finished. Specifications: Made in the USA Stainless...HKP-19891$24.95 -
HK P2000 Barrel - 9mm - 4.28" - Threaded 13.5x1 LH
RCM
$225.00RCM HK P2000 13.5x1 9mm LH Threaded Barrel - Black Each P2000 tactical barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra-desirable nitride finish. This is the finest threaded...HKP-16701$225.00 -
HK416, MR556 Barrel Mandrel Tool
HKP HK Parts
$169.95HKP HK MR556/416 Barrel Mandrel Tool US Made - HK 416, MR556 Barrel Mandrel Tool.HKP-19059$169.95 -
HK G36, SL8 Barrel Retaining Nut
H&K Heckler & Koch
$29.95HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 VariantsHKP-16341$29.95