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
Now: $71.95Was: $79.95 -
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
HK416 Gas Block for 10.4" Barrels
H&K Heckler & Koch
Now: $251.95Was: $279.95HK German 10.4" Barrel Non-Vented Gas Block Complete Factory HK NON-VENTED 10.4" gas block. Compatible With: HK 416 10.4" uppers HK MR556 to 10.4" conversionsNow: $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 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 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 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 Mark 23 Barrel - .45 ACP - Threaded 16x1 RH
H&K Heckler & Koch
Now: $530.96Was: $589.95H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH A great replacement item for a now out-of-production pistol. New HK German mark 23 barrel threaded with the factory correct 16x1 RH thread. Get that replacement or factory new spare barrel while they are...Now: $530.96Was: $589.95 -
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