Barrels

Barrels

 

Discover premium HK barrels and parts for your firearms. Our bestselling selection includes replacement barrels, custom barrels, precision barrels, and tactical barrels, all crafted to meet the highest standards. Whether you need stainless steel barrels, threaded barrels, pistol barrels, rifle barrels, or submachine gun barrels, we have the ideal upgrade for you. Enhance your HK rifle or pistol with high-performance, aftermarket, and competition barrels. Shop now for OEM barrels and accessories to elevate your shooting experience with unparalleled quality and reliability.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • H&K HK USP Elite .45 ACP Barrel - Black H&K HK USP Elite .45 ACP Barrel - Black

    H&K HK USP Elite .45 ACP Barrel - Black

    H&K Heckler & Koch

    $499.95
    HK USP Elite .45 ACP Barrel - Black The finest HK USP .45 barrel available and used in the HK Elite line of firearms from hand-selected barrel blanks. Compatible With: HK USP Elite .45 ACP Also fits the USP .45 Full Size & Tactical models but...
    HKP-01524
    $499.95
    Qty in Cart: 0
    Quantity:
    Price:
    $499.95
    Subtotal:
  • HKP .40 S&W Enhanced Titanium Thread Protector- Threaded 9/16x24 - Silver

    HKP .40 S&W Enhanced Titanium Thread Protector- Threaded 9/16x24 - Silver

    HKP HK Parts

    $24.95
    HKP .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
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • Out Of Stock
    HKP HK G36K Barrel HKP HK G36K Barrel

    HKP HK G36K Barrel

    HKP HK Parts

    $499.95
    HKP HK G36K Barrel Brand new HK G36K barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36K barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the SL8/G36 style...
    HKP-18194
    $499.95
    Qty in Cart: 0
    Quantity:
    Price:
    $499.95
    Subtotal:
  • Out Of Stock
    MM HK UMP (9mm) Barrel - 16.5 Inch

    MM HK UMP (9mm) Barrel - 16.5 Inch

    Michaels Machines

    $549.95
    MM HK UMP (9mm) Barrel - 16.5 Inch   Fluted just like the factory HK barrels with 16 flutes.
    HKP-02282
    $549.95
    Qty in Cart: 0
    Quantity:
    Price:
    $549.95
    Subtotal:
  • PTR-32 (7.62x39) Barrel - 12.7 inch PTR-32 (7.62x39) Barrel - 12.7 inch

    PTR-32 (7.62x39) Barrel - 12.7 inch

    PTR

    $179.95
    PTR-32 (7.62x39) Barrel - 12.7 inch PTR-91 US made 12.7" barrel. Factory production perfect for new builds. Counts as one US made compliant part. Compatible With: Short length G3K cocking tubes with no modification
    HKP-17404
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • PTR-32 (7.62x39) Barrel - 16 inch PTR-32 (7.62x39) Barrel - 16 inch

    PTR-32 (7.62x39) Barrel - 16 inch

    PTR

    $249.95
    PTR-32 (7.62x39) Barrel - 16 Inch Specifications: 16.25" overall length Chambered in 7.63x39mm Fully Fluted with 12 flutes Match grade Please Note: PTR barrels have a thicker profile, and your front sight tower must be reamed for proper...
    HKP-02200
    $249.95
    Qty in Cart: 0
    Quantity:
    Price:
    $249.95
    Subtotal:
  • H&K MP5K PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug H&K MP5K PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug

    H&K MP5K PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug

    USA

    $299.95
    H&K MP5K PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug This US-made MP5KN PDW 10mm barrel features a 9/16x24 thread pitch and a 3-lug design. It is a rare and hard-to-find barrel, with only a few available. Ideal for enhancing your MP5K PDW, this barrel...
    HKP-02317
    $299.95
    Qty in Cart: 0
    Quantity:
    Price:
    $299.95
    Subtotal:
  • HK P30, P30S .40 Barrel - Black HK P30, P30S .40 Barrel - Black

    HK P30, P30S .40 Barrel - Black

    H&K Heckler & Koch

    $274.95
    HK P30, P30S .40 Barrel - Black New HK German P30 standard factory length. 
    HKP-02412
    $274.95
    Qty in Cart: 0
    Quantity:
    Price:
    $274.95
    Subtotal:
  • HKP .40 S&W Thread Protector - Threaded 9/16x24 RH HKP .40 S&W Thread Protector - Threaded 9/16x24 RH

    HKP .40 S&W Thread Protector - Threaded 9/16x24 RH

    HKP HK Parts

    $14.95
    HKP .40 S&W Thread Protector - Threaded 9/16x24 RH   The HK Parts 9/16x24 Thread Protector is specifically designed for .40 S&W handgun barrels with 9/16x24 right-hand threading, compatible with HK, Glock, Sig, SW, and more. Essential...
    HKP-17032
    $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • RCM HK MP5K 10mm Barrel - Threaded 14x.75 RCM HK MP5K 10mm Barrel - Threaded 14x.75

    RCM HK MP5K 10mm Barrel - Threaded 14x.75

    RCM

    $279.95
    RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance performance and reliability, this barrel is perfect for...
    HKP-21155
    $279.95
    Qty in Cart: 0
    Quantity:
    Price:
    $279.95
    Subtotal:
  • RCM HK MP5K 10mm Barrel - Threaded 9/16x24 RCM HK MP5K 10mm Barrel - Threaded 9/16x24

    RCM HK MP5K 10mm Barrel - Threaded 9/16x24

    RCM

    $279.95
    RCM 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
    Qty in Cart: 0
    Quantity:
    Price:
    $279.95
    Subtotal:
  • RCM HK P2000 .40 S&W Barrel - Threaded 14.5x1 LH RCM HK P2000 .40 S&W Barrel - Threaded 14.5x1 LH

    RCM HK P2000 .40 S&W Barrel - Threaded 14.5x1 LH

    RCM

    $225.00
    RCM HK P2000 .40 S&W Barrel - Threaded 14.5x1 LH Each P2000 .40 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-16942
    $225.00
    Qty in Cart: 0
    Quantity:
    Price:
    $225.00
    Subtotal:
  • RCM HK USPC 9mm Barrel - Non-Threaded RCM HK USPC 9mm Barrel - Non-Threaded

    RCM HK USPC 9mm Barrel - Non-Threaded

    RCM

    $199.95
    RCM HK USPC 9mm Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest replacement barrel for the HK USPC 9mm pistol, ideal as a spare or for...
    HKP-16704
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH

    RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH

    RCM

    $164.95
    RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH These are the finest US-made barrels available and come highly recommended by HKParts.  Specifications: Made In The USA Threaded 15x1 RH Counts As 1 US Made 922r Compliant Part Cold Hammer Forged...
    HKP-02400
    $164.95
    Qty in Cart: 0
    Quantity:
    Price:
    $164.95
    Subtotal:
  • Out Of Stock
    H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case w/ Sling - 18 inch Barrels H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case w/ Sling - 18 inch Barrels

    H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case w/ Sling - 18 inch Barrels

    H&K Heckler & Koch

    $0.00
    HK German 21/23 Barrel Carrying Case W/ Sling (All Steel Heavy Duty) For All HK21/23 17.75 (18&) Inch Barrels. Rare and now out of production.
    HKP-00586
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case With Sling - 22 inch H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case With Sling - 22 inch

    H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case With Sling - 22 inch

    H&K Heckler & Koch

    $0.00
    HK German 21/23E Barrel Case With Sling (All Steel Heavy Duty) For All HK21/23E - 22 Inch Barrels  
    HKP-01151
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • H&K HK 940 .30-06 Rifle Barrel H&K HK 940 .30-06 Rifle Barrel

    H&K HK 940 .30-06 Rifle Barrel

    H&K Heckler & Koch

    $948.95
    H&K HK 940 .30-06 Rifle Barrel We understand how challenging it can be to find rare and hard-to-find components for your firearms, which is why we are pleased to present an exceptional opportunity to acquire a replacement barrel for the HK940 in ...
    HKP-21605
    $948.95
    Qty in Cart: 0
    Quantity:
    Price:
    $948.95
    Subtotal:
  • H&K HK MP5/SP5  3 Lug Barrel - New Old Stock - Rare H&K HK MP5/SP5  3 Lug Barrel - New Old Stock - Rare

    H&K HK MP5/SP5 3 Lug Barrel - New Old Stock - Rare

    H&K Heckler & Koch

    $987.95
    H&K HK MP5/SP5 3 Lug Barrel - New Old Stock - Rare Factory German date coded with H&K logo. This new old stock 3-lug threaded item is incredibly rare and in pristine condition. An absolute gem in the market. We only have a limited number...
    HKP-21662
    $987.95
    Qty in Cart: 0
    Quantity:
    Price:
    $987.95
    Subtotal:
  • On Sale
    H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston - BLEMISHED

    H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston - BLEMISHED

    H&K Heckler & Koch

    Now: $29.95
    Was: $50.95
    H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. New HK German gas piston assembly with...
    HKP-00047-B
    Now: $29.95
    Was: $50.95
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $29.95
    Was: $50.95
    Subtotal:
  • On Sale
    H&K HK SL8 German Barrel - BLEMISHED H&K HK SL8 German Barrel - BLEMISHED

    H&K HK SL8 German Barrel - BLEMISHED

    H&K Heckler & Koch

    Now: $489.95
    Was: $999.95
    H&K HK SL8 German Barrel - BLEMISHED INCLUDES BARREL NUT AND GAS BLOCK LIKE SHOWN IN PICTURE. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. A rare find...
    HKP-16355-B
    Now: $489.95
    Was: $999.95
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $489.95
    Was: $999.95
    Subtotal:
  • H&K HK USC 45 Barrel - Used H&K HK USC 45 Barrel - Used

    H&K HK USC 45 Barrel - Used

    H&K Heckler & Koch

    $695.95
    Barrel - HK USC 45 in Exc + shape HK German factory USC 45 barrel in excellent + condition. Rare and hard to find. 
    HKP-20471
    $695.95
    Qty in Cart: 0
    Quantity:
    Price:
    $695.95
    Subtotal:
  • Out Of Stock
    H&K HK USP .45 ACP Barrel - Match - Black H&K HK USP .45 ACP Barrel - Match - Black

    H&K HK USP .45 ACP Barrel - Match - Black

    H&K Heckler & Koch

    $0.00
    H&K HK USP .45 ACP Barrel - Match - Black The real deal factory HK Match barrel. This barrel will fit all HK USP .45 full size models. If you want a longer barrel for your HK USP 45 or USP 45 Tactical this is a great option for an extended length or...
    HKP-17508
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    H&K HK USPC .357 SIG Barrel

    H&K HK USPC .357 SIG Barrel

    H&K Heckler & Koch

    $0.00
    HK USP Compact .357 SIG Barrel This barrel is a direct replacement part for all HK USPC .40 or .357 or if you want to convert your .40 USPC to a .357. It comes 3.58" in overall length. 
    HKP-01902
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    H&K MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug

    H&K MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug

    H&K Heckler & Koch

    $599.95
    H&K MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug German HK Barrel that is threaded and three lugged with the factory correct thread pitch 14x.75 and thread protector. Pulled out from demilled MP5 .40 S&W, this is a rare part, and only a few...
    HKP-01638
    $599.95
    Qty in Cart: 0
    Quantity:
    Price:
    $599.95
    Subtotal:
  • H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug

    H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug

    H&K Heckler & Koch

    $1,495.00
    H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug New MP5 .40 S&W barrel. Factory-installed sight tower with sight/sling eyelets and factory finish. Specifications: Threaded 3-Lug Compatible With: HK MP5 .40 S&W Rare & hard to find...
    HKP-19349
    $1,495.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,495.00
    Subtotal:
  • Out Of Stock
    H&K MP5 40/10 Thread Protector Cap H&K MP5 40/10 Thread Protector Cap

    H&K MP5 40/10 Thread Protector Cap

    H&K Heckler & Koch

    $0.00
    HK German Factory Thread Protector For All MP5 40/10 Factory HK Barrels. The Thread Pitch Is Metric 14 X.75
    HKP-00422
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    H&K MR556 & HK416 (5.56x45/.223) Upper Conversion Kit - Threaded 1/2x28 H&K MR556 & HK416 (5.56x45/.223) Upper Conversion Kit - Threaded 1/2x28

    H&K MR556 & HK416 (5.56x45/.223) Upper Conversion Kit - Threaded 1/2x28

    HKP HK Parts

    $699.95
    H&K MR556 & HK416 (5.56x45/.223) Upper Conversion Kit - Threaded 1/2x28 Finally an answer for all of those that have been wanting a 14.5" upper for an HK416 or MR556. This conversion kit adds an upper or a barrel option for your MR556, CR556...
    HKP-17877
    $699.95
    Qty in Cart: 0
    Quantity:
    Price:
    $699.95
    Subtotal:
  • Out Of Stock
    H&K UMP (.45 ACP) Barrel - Used H&K UMP (.45 ACP) Barrel - Used

    H&K UMP (.45 ACP) Barrel - Used

    H&K Heckler & Koch

    $0.00
    HK UMP 45 ACP 8 Inch Barrel - German German HK Cold Hammer Forged Barrel- UsedUsed PD trade in authentic German HK UMP .45 barrel. Polygonal and cold hammer forged. A rare part as the barrel is not a part that can be bought from HK separately. The only...
    HKP-14955
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    H&K USP 9mm Tactical Barrel - Threaded 13.5x1 LH H&K USP 9mm Tactical Barrel - Threaded 13.5x1 LH

    H&K USP 9mm Tactical Barrel - Threaded 13.5x1 LH

    H&K Heckler & Koch

    $0.00
    H&K USP 9mm Tactical Barrel - Threaded 13.5x1 LH This barrel is a drop-in replacement barrel for standard full-size USP 9mm Pistols. Cold hammer forged, polygonal rifled, and made in Germany. Specifications: Threaded 13.5x1 LH Overall Length 4...
    HKP-00797
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    HK G36E Barrel HK G36E Barrel

    HK G36E Barrel

    USA

    $499.95
    Barrel - USA - HK G36E Brand new HK G36E barrel. Specifications: Barrel length 19"
    HKP-19273
    $499.95
    Qty in Cart: 0
    Quantity:
    Price:
    $499.95
    Subtotal:
  • HK MR556 16" Complete Upper Barrel HK MR556 16" Complete Upper Barrel

    HK MR556 16" Complete Upper Barrel

    H&K Heckler & Koch

    $999.95
    HK MR556 16" Complete Upper Barrel Factory HK MR556 16" barrel, complete with a factory-installed barrel nut, gas block and flash hider. Every component is brand new and meticulously crafted, guaranteeing top-notch quality. This barrel is the ultimate...
    HKP-21805
    $999.95
    Qty in Cart: 0
    Quantity:
    Price:
    $999.95
    Subtotal:
  • Out Of Stock
    HKP 9mm Titanium Thread Protector - Threaded 13.5x1 LH HKP 9mm Titanium Thread Protector - Threaded 13.5x1 LH

    HKP 9mm Titanium Thread Protector - Threaded 13.5x1 LH

    HKP HK Parts

    $29.95
    HKP 9mm Titanium Thread Protector - Threaded 13.5x1 LH This billet machined titanium and Cerakoted enhanced thread protector is made for use with all 13.5x1 LH threaded barrels. This unique design will fit over and protect the crown of your barrel for...
    HKP-19724
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • Out Of Stock
    HKP HK MR556/416 9" HK416C Style Barrel Conversion Kit HKP HK MR556/416 9" HK416C Style Barrel Conversion Kit

    HKP HK MR556/416 9" HK416C Style Barrel Conversion Kit

    HKP HK Parts

    $0.00
    MR556 & HK416 Barrel Conversion Kit - 9" - 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 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...
    HKP-18401
    $0.00
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    HKP HK MR556/416 Upper 9" 416C Style Conversion Kit HKP HK MR556/416 Upper 9" 416C Style Conversion Kit

    HKP HK MR556/416 Upper 9" 416C Style Conversion Kit

    HKP HK Parts

    $899.95
    MR556 & HK416 Upper Conversion Kit - 9" - 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 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...
    HKP-18674
    $899.95
    Qty in Cart: 0
    Quantity:
    Price:
    $899.95
    Subtotal:
  • Out Of Stock
    HKP HK UMP (9mm) Standard Barrel HKP HK UMP (9mm) Standard Barrel

    HKP HK UMP (9mm) Standard Barrel

    HKP HK Parts

    $299.95
    HK UMP 9mm Barrel US made replica of the HK UMP 9mm barrel. Counts as one US made compliant part as an added bonus.
    HKP-18640
    $299.95
    Qty in Cart: 0
    Quantity:
    Price:
    $299.95
    Subtotal:
  • Out Of Stock
    HKP HK UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug HKP HK UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug

    HKP HK UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug

    HKP HK Parts

    $399.95
    HKP H&K UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 RH and 3-Lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Overall Length...
    HKP-18511
    $399.95
    Qty in Cart: 0
    Quantity:
    Price:
    $399.95
    Subtotal:
  • Out Of Stock
    HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28 HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28

    HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28

    HKP HK Parts

    $679.95
    HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop in with...
    HKP-02287
    $679.95
    Qty in Cart: 0
    Quantity:
    Price:
    $679.95
    Subtotal:
  • HKP MP5, 94 Trunnion 9mm - USA HKP MP5, 94 Trunnion 9mm - USA

    HKP MP5, 94 Trunnion 9mm - USA

    HKP HK Parts

    $54.95
    HKP MP5, 94 Trunnion 9mm - USA US made to exact factory HK specifications for the HK MP5, 94 type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK...
    HKP-17934
    $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    $54.95
    Subtotal:
  • Total: items /

Adding your products to cart