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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On Sale
HK P30L Tactical Barrel - .40 S&W - 5.06" - Threaded 9/16x24 RH
RCM
Now: $202.50Was: $225.00RCM HK P30L .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK P30L .40...Now: $202.50Was: $225.00 -
On Sale
HK 416 10.4" Upper Gas Block - German
Now: $251.95Was: $279.95HK German 10.4" Upper Gas Block Complete New HK German manufacture. This is the ONLY 10.4" gas block available from HK Germany. Compatible With: HK 416 10.4" uppers HK MR556 to 10.4" conversions Please Note: This unit is NOT a vented gas block.Now: $251.95Was: $279.95 -
Out Of StockOn Sale
HK91, G3 Barrel - 7.62x51 - 17.7" - Threaded 5/8x24
RCM
Now: $238.49Was: $264.99RCM HK G3/91 Threaded Barrel - 5/8x24-CHE Machined by RCM from a Mil-Spec 41V50 Hammer Forged Blank. These blanks are considered to be one of the finest made. 1:10 twist, Nitride finish. Perfect for that HK build or to replace that shot out barrel. Each...Now: $238.49Was: $264.99 -
On Sale
HK UMP Barrel - .45 ACP - 3 Lug Adapter
OMEGA
Now: $404.95Was: $449.95Omega HK UMP .45 ACP Barrel - 3-Lug This is the newest barrel for the UMP to hit the market that will come with a removable 3-lug adapter. The 3-lug adapter will be the same spec as the MP5 3 lug, making your UMP more versatile when it comes down to...Now: $404.95Was: $449.95 -
On Sale
HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug - US
HKP HK Parts
Now: $239.96Was: $299.95HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug HKP UMP 3-lug 1/2x28 threaded barrel. This is the perfect replacement for a worn out barrel or as a spare. With the 3-lug attachment point you can attach any suppressor or flash hider that is in-spec or you...Now: $239.96Was: $299.95 -
On Sale
HK45T, USPC Tactical Thread Protector - 16x1mm LH
H&K Heckler & Koch
Now: $27.86Was: $30.95H&K HK45T/USP45T Thread Protector The HK thread protector is a must have accessory when a sound suppressor or muzzle attachment is not in use on your tactical pistol. The thread protector will prevent damages to the threads and crown. Compatible...Now: $27.86Was: $30.95 -
On Sale
HK P2000 Conversion Barrel - .40 S&W to .357 SIG
RCM
Now: $215.95Was: $239.95RCM HK P2000 .40 to .357 Conversion Barrel This is a great spare or replacement barrel to have on hand. Also, a popular barrel to convert the P2000 .40 to .357. Compatible With: HK P2000 .40 S&WNow: $215.95Was: $239.95 -
On Sale
HK MP5K, SP5K, SP89 Barrel 9mm - 5.85" - 3 Lug
RCM
Now: $134.95Was: $149.95RCM MP5K/SP5K/SP89 9mm Barrel - Non-Threaded 3-Lug This is the only US-made non-threaded barrel that uses the same steel and Cold Hammer Forged (CHF) process as Heckler & Koch. Precision-milled to the latest MP5KN PDW specifications with...Now: $134.95Was: $149.95 -
On Sale
HK416 Gas Block Assembly Tool
Nefarious Arms
Now: $85.45Was: $94.95Nefarious Arms HK 416 Gas Block Assembly Tool A Nefarious Arms creation for those that like to service or replace their 416 gas block. This assembly tool will effortlessly help you assemble or disassemble your 416 gas block by simply aligning the two...Now: $85.45Was: $94.95 -
Out Of StockOn Sale
HK P30SK, P2000SK Tactical Barrel - 9mm - 3.89" - Threaded 1/2x28 RH
RCM
Now: $202.50Was: $225.00RCM HK P30SK & HK P2000SK 9mm Tactical Barrel - Threaded 1/2x28 RH Each HK P2000SK and P30SK tactical barrel is meticulously crafted from ordnance grade steel, heat treated, and finished with a durable nitride coating. This is the finest...Now: $202.50Was: $225.00 -
On Sale
HK MP5 Barrel - 9mm - 8.85" - 3 Lug
RCM
Now: $134.95Was: $149.95RCM HK MP5 9mm Barrel - Non-Threaded 3-Lug Made from Cold Hammer Forged (CHF) steel, each high-quality barrel is processed with a durable nitride finish, similar to the treatment used by Sig Sauer. Precision-milled to the latest specifications with...Now: $134.95Was: $149.95 -
On Sale
HK P30 Fluted Barrel - 9mm - 4.5" - Threaded 13.5x1
HKP HK Parts
Now: $183.96Was: $229.95HKP P30 9mm Fluted Barrel - Threaded 13.5x1 Made from ordnance grade steel, heat treated, and finished with durable nitride. Each fluted barrel includes an O-ringed thread protector that will not loosen or fall off during range sessions...Now: $183.96Was: $229.95