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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Out Of Stock
HK USP Barrel - .40 S&W
H&K Heckler & Koch
$0.00Heckler and Koch German USP Full Size .40 Caliber Barrel Great idea to have a spare, factory cold hammer forged, polygonal HK barrel on hand. Compatible With: USP .40 Full Size USP .40 TacticalHKP-01528$0.00 -
HK P2000 Barrel - .40 S&W - 3.62"
H&K Heckler & Koch
$239.95HK factory German P2000 .40 SW 3.62" Barrel Specifications: .40 S&W Caliber 3.62 inches Genuine Heckler and Koch PartHKP-01127$239.95 -
$7.95 -
On Sale
HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug
GSG9
Now: $259.95Was: $349.95GSG9 UMP (9mm) Barrel - Threaded 1/2x28 - 3-Lug This barrel is the perfect addition to your UMP conversion as it includes the 3-lug and threaded 1/2x28 end of the barrel for use with suppressors or factory HK 3-lug flash hiders. Specifications: Threaded...HKP-02281Now: $259.95Was: $349.95 -
HK33, HK93 Barrel - 300 BLK - 16.1" - Threaded 5/8x24
RCM
$234.95NCM HK33/93 .300 BLK 16.125 Inch Barrel - Threaded 5/8x24 Each barrel was designed for use with the wildly popular AAC style quick detach muzzle breaks and cans in the 5/8x24 thread pitch. Although, this barrel is perfect for just about any .300 BLK...HKP-17392$234.95 -
HK UMP Barrel Pin Screw
OMEGA
$13.95Omega UMP Barrel Pin Screw Barrel pin Screw that replaces barrel pins on Omega Gideon Shadow Compatible With: HK UMP HK USC Omega GSHKP-22514$13.95 -
HK91, G3 Caliber Conversion Kit - .22LR - BLEMISHED
H&K Heckler & Koch
$945.95Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - BLEMISHED THESE KITS INCLUDE A BENT BARREL AND ONE MAGAZINE. BLEMISHED PARTS ARE SOLD AS IS. THIS KIT IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Convert any HK91 or HK...HKP-01147-B$945.95 -
Thread Protector - .40 S&W - 9/16x24 - Titanium
HKP HK Parts
$24.95HKP .40 S&W Enhanced Titanium Thread Protector- Threaded 9/16x24 This solid titanium .40 S&W tactical thread protector is designed for barrels threaded 9/16x24. It’s an essential accessory for safeguarding your threaded barrel,...HKP-17976$24.95 -
Out Of Stock
HK416, MR556 Upper 8" 416C Style Conversion Kit
HKP HK Parts
$1,285.95Upper Conversion Kit for HK416 and MR556 8 inch barrel - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 8" barrel conversion kit for 416 or MR556. Each conversion kit...HKP-18629$1,285.95 -
On Sale
HK MP5 Thread Protector Cap - 10mm / .40 S&W - 14x.75 - USED
H&K Heckler & Koch
Now: $34.95Was: $49.95H&K Heckler & Koch's MP5 40/10 Thread Protector Cap - Threaded 14x.75 - USED ONLY 4 UNITS AVAILABLE - AS PICTURED Priced for ONE cap - Condition Varies by Unit - Each unit Sold INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL...HKP-00422-BNow: $34.95Was: $49.95 -
HK416, MR556 Barrel - 5.56 - 9" - Threaded 1/2"x28 - PDW - A1 and A3
Nefarious Arms
$594.95Nefarious Arms HK 416C 9" Barrel The Nefarious Arms HK416/MR556 Barrel is built for shooters who demand precision, durability, and consistent performance. Made in the USA from 4150 chromoly steel, cold-hammer-forged, and chrome-lined for enduring...HKP-21906$594.95 -
HK MP5K Barrel - 10mm - Threaded 9/16x24 with 3 Lug
RCM
$279.95RCM HK MP5K 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5K with the RCM HK MP5K 10mm Barrel. This barrel is precision engineered for superior accuracy and durability, making it an essential upgrade for firearm enthusiasts...HKP-21157$279.95