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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HK45 Thread Protector - 16x1 - LH - Titanium
$24.95HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for safeguarding your threaded barrels and exposed threads, it...$24.95 -
HK MP5K, MP5KN Barrel - 9mm - 5.85" - Threaded 1/2x28 with 3 Lug
RCM
$164.95RCM HK MP5K/N 9mm Barrel - Threaded 1/2x28 - 3-Lug Machined from a cold hammer forged blank to the latest MP5KN PDW specifications, this barrel features factory-correct, updated 16 flutes in the chamber. It is 3-lugged, threaded, and designed to...$164.95 -
HK416, MR556 Vented Upper Gas Block - 10.4"
H&K Heckler & Koch
$139.95H&K HK MR556/416 10.4" Complete Vented Upper Gas Block New HK German manufacture newest "VENTED" version direct from HK Germany. Great upgrade part for existing 10.4" uppers that have the older style non-vented gas block or to use on the MR556 and HK...$139.95 -
Out Of Stock
HK USP Tactical Barrel - .40 S&W - Threaded 14.5x1 LH
H&K Heckler & Koch
$299.95H&K USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH This genuine Heckler & Koch part is a drop-in replacement for the full-size USP, USP Tactical, and other .40 S&W pistols. The tactical threaded barrel offers precise fit and...$299.95 -
Out Of Stock
HK91, G3 Barrel - 7.62 / .308 - 17.7" - Threaded 15x1 RH
RCM
$264.95RCM HK G3/91 (7.62x51/.308) Barrel - Threaded 15x1 RH Made by RCM to the highest tolerances and finest material available. Perfect for that HK build or to replace that shot-out barrel. Each barrel counts as 1 US-compliant part as a bonus. These are...$264.95 -
On Sale
HK .40 S&W Thread Protector - Tactical - Threaded 14.5x1 LH
H&K Heckler & Koch
Now: $11.95Was: $24.95H&K .40 S&W Tactical Thread Protector - Threaded 14.5x1 LH Fits all HK barrels that are threaded 14.5x1 LH. This is the correct thread protector for all the HK .40 S&W metric threaded barrels. This will also fit non HK related barrels as well...Now: $11.95Was: $24.95 -
Out Of Stock
HK UMP Barrel - .45 ACP - 3 Lug - Threaded 16x1 LH
HDPS
$399.95HK UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 LH and 3-lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Threaded 16x1...$399.95 -
Out Of Stock
HK45 Tactical Barrel - Threaded .578x28 RH
RCM
$250.00RCM HK45 .45 ACP Tactical Barrel - Threaded .578x28 RH HK45 & HK45 Tactical threaded barrel compatible with a variety of flash hiders and sound suppressors. Unlike the factory HK45 Tactical barrel, which has a metric 16x1 LH thread, this barrel...$250.00 -
Out Of Stock
HK UMP Barrel - .45 ACP - Threaded .578x28
HDPS
$349.95HK UMP .45 ACP Barrel - Threaded .578x28 HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 ACP barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a...$349.95 -
HK Pistol O-Ring - Barrel - .40 S&W
H&K Heckler & Koch
$4.95New HK German Black .40 Cal Barrel O-ring For All .40 Caliber Threaded Barrels This factory part is a high wear and replacement item as the O-ring provides the seal between the slide and the barrel, which provides a secure lockup and increased accuracy...$4.95 -
Out Of Stock
HK USPC Tactical Barrel - 9mm - 4.28" - Threaded 1/2x28 RH
RCM
$225.00RCM HK USPC 9mm Tactical Barrel - Threaded 1/2x28 RH Each USPC 9mm tactical barrel is crafted from ordnance grade steel, heat-treated, and finished with a durable nitride coating. It is the finest threaded replacement barrel for the HK USPC 9mm...$225.00 -
HK MP5, HK416 Barrel - .22LR - 8.5" - Threaded 8x.75
RCM
$229.95RCM HK MP5 / 416 .22LR Pistol Barrel The first and only replacement barrel for the HK .22LR platforms—this is a game-changer! Previously, replacing the barrel meant the hassle of sending the receiver to H&K and waiting for the assembly to be...$229.95