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.
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RCM HK P2000SK .40 S&W Barrel - Threaded 9/16x24 RH
RCM
$225.00RCM HK P2000SK .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each P2000 SK tactical barrel is crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the...HKP-16740$225.00 -
RCM HK P30L .40 S&W Tactical Barrel - Threaded 14.5x1 LH
RCM
$225.00RCM HK P30L .40 S&W Tactical Barrel - Threaded 14.5x1 LH 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 ...HKP-16220$225.00 -
RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 1/2x28
RCM
$214.95RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 1/2x28 This 9mm conversion barrel is a drop-in replacement that allows your P30L to shoot the ubiquitous 9mm cartridge. The conversion barrel features a standard 1/2x28 thread pitch and includes...HKP-21785$214.95 -
RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 13.5x1
RCM
$214.95RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your USP to shoot the ubiquotous 9mm cartridge.Includes a thread protector. Each barrel is made from ordnance-grade steel,...HKP-21789$214.95 -
H&K G36/SL8 (5.56/.223) Barrel Retaining Nut
H&K Heckler & Koch
$29.95HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 VariantsHKP-16341$29.95 -
H&K HK MR762/417 Barrel Nut
H&K Heckler & Koch
$99.95HK MR762 Barrel Nut Or Socket Barrel - German HK A must have for any removal or work done to barrel as the barrel nut may need to be replaced./417 Compatible With: HK MR762/417HKP-16597$99.95 -
Out Of Stock
Nefarious Arms HK 416/MR556 14.5" A5 Barrel
Nefarious Arms
$694.95Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Compatible With: HK 416 (A5,...HKP-21590$694.95 -
RCM HK MP5 10mm Barrel - Threaded 14x.75
RCM
$279.95RCM HK MP5 10mm Barrel - Threaded 14x.75 Enhance your MP5 with the RCM HK MP5 10mm Barrel, featuring precise 14x.75 threading. Expertly crafted for German MP5 models, this barrel ensures superior durability and performance. Ideal for both custom builds...HKP-21156$279.95 -
Out Of Stock
H&K HK 45 German Barrel - Black
H&K Heckler & Koch
$314.95H&K HK 45 German Barrel - Black New HK45 German manufacture Cold Hammer Forged Factory Barrel. This is the perfect replacement barrel for those who have an HK45 Tactical model and want to replace the barrel with a non-threaded barrel. Compatible...HKP-14564$314.95 -
RCM HK P30 .40 Cal S&W To .357 Sig Conversion Barrel - Non-Threaded
RCM
$237.50RCM HK P30 .40 Cal S&W To .357 Sig Conversion Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the best barrel for the HK P30 .40 S&W. This ...HKP-17505$237.50 -
Out Of Stock
RCM Schneider PSG-1 Barrel
RCM
$849.95RCM Schneider PSG-1 Barrel Only the finest blanks in the industry can produce the best results on the range. Schneider Barrel Company makes that blank. This barrel will work perfectly with standard G3/91 trunnions, G3 barrel extensions, or...HKP-21193$849.95 -
H&K HK VP9SK Standard Barrel - Black
H&K Heckler & Koch
$234.95H&K HK VP9SK Standard Barrel - Black Brand new HK German Standard Length VP9SK Barrel. Marked HK 9mmx19 Brand new cold hammer forged & made in Germany. Compatible With: HK VP9SK modelsHKP-18320$234.95 -
HKP HK UMP .45 ACP Barrel - Threaded 16x1 LH
HKP HK Parts
$369.95HKP HK UMP .45 ACP Barrel - Threaded 16x1 LH This new 16.5" threaded barrel is designed for UMP or Omega firearms, with precise 16x1 LH threading. Ideal for those looking to upgrade or replace their barrel. Specifications: Overall Length 16.5" Threaded...HKP-19395$369.95 -
HKP/H&K P2000 9mm Dimpled Barrel - Threaded 13.5x1
HKP HK Parts
$229.95HKP/H&K P2000 9mm Dimpled Barrel - Threaded 13.5x1 Each barrel is expertly crafted from ordnance grade steel, heat treated, and finished with a premium nitride coating. The dimpled design adds aesthetic appeal, while the fitted O-ringed thread...HKP-18413$229.95 -
HK UMP 9mm Barrel - Threaded - 3-Lug
Michaels Machines
$549.95HK UMP 9mm Barrel - Threaded - 3-Lug Specifications: 3Lug Threaded Compatible With: UMP 9mmHKP-02278$549.95 -
On Sale
HKP Glock 17 9mm Fluted Barrel - Threaded 1/2x28
Now: $99.95Was: $239.95HKP Glock 17 9mm Fluted Barrel - Threaded 1/2x28 The Adams Arms Glock 17 9mm Match Grade Box Fluted Barrel is designed as an improved, drop-in barrel for the Glock 17. The barrel is machined to tighter fitment tolerances to increase accuracy potential...HKP-18871Now: $99.95Was: $239.95 -
RCM HK P2000 .40 S&W Tactical Barrel - Threaded 9/16x24 RH
RCM
$225.00RCM HK P2000 .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each P2000 .40 S&W tactical barrel is crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. It is the finest threaded replacement barrel available...HKP-16709$225.00 -
H&K HK USPC .40 S&W Barrel - Black
H&K Heckler & Koch
$234.95HK USP Compact .40 S&W Barrel - 3.58" Overall Barrel Length A drop-in replacement barrel for all HK USPC .40 or .357 pistols. This is a great spare or replacement barrel. This is a must-have if you want to convert your .357 USPC to .40 cal...HKP-01413$234.95 -
HK MP5/K Barrel Extension Faux Suppressor - Threaded 15x1 RH
USA
$179.95HK MP5/K Barrel Extension Faux Suppressor - 15x1 RH Perfect for that rifle build or for those looking for the MP5KN suppressed look. Dakota tactical review of this exciting new product on an MP5: DTAC Suppressor Review Specifications: Overall length: 8...HKP-20890$179.95 -
On Sale
HKP SD Barrel Port Brush Handle - Black - BLEMISHED
HKP HK Parts
Now: $28.95Was: $39.95HKP SD Barrel Port Brush Handle - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK Parts SD brush handle is the perfect tool to pair with...HKP-21448-BL-BNow: $28.95Was: $39.95 -
RCM HK P30 9mm Tactical Barrel - Threaded 13.5x1 LH
RCM
$225.00RCM HK P30 9mm Tactical Barrel - Threaded 13.5x1 LH 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 P30 9mm pistol,...HKP-16238$225.00 -
RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH
RCM
$164.95RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH Made to exact HK51K specifications from cold hammer forged steel, this barrel matches the quality of HK German barrels. Ideal for custom builds and HK51K style projects. Specifications: Made In The...HKP-02392$164.95 -
Out Of Stock
H&K MR762/417/G28 Gas Block
H&K Heckler & Koch
$199.95H&K MR762/417/G28 Gas Block New German HK manufacture for the HK MR762 & HK417, G28 firearm. This unit comes without the sling loops installed. Compatible With: HK MR762 HK 417 HK G28HKP-17259$199.95 -
H&K P30L 4.45" 9mm Barrel - Black
H&K Heckler & Koch
$234.95H&K P30L 4.45" 9mm Barrel - Black Factory German 4.45" barrel perfect for replacement or for that project barrel. Compatible with all HK P30 models.HKP-01827$234.95 -
H&K USP .40 Expert 5.19" Barrel - Black
H&K Heckler & Koch
$299.95New HK German Factory USP Expert .40 Barrel This barrel will fit a stock USP .40 full-size pistol but will extend out the front of the slide for those who want to use a Comp Weight? or need a longer barrel for the USP .40 firearm. Made in Germany with a...HKP-01472$299.95 -
H&K HK USP .45 ACP Expert Barrel - Black
H&K Heckler & Koch
$399.95HK USP .45 ACP Expert Barrel - Black 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 use with an HK Comp Weight.HKP-01525$399.95 -
HKP HK MR556/416 10.4" 5.56 Barrel
HKP HK Parts
$369.95MR556 & HK416 Barrel - 10.4"- US Made Finally an answer for all of those that have been wanting a 10.4" 416 or MR556 barrel option for your MR556, CR556 & HK 416's. Each barrel is as close as you can get for those that want a HK 416 style upper...HKP-18200$369.95 -
Out Of Stock
MM HK 23E (5.56/.223) Heavy Rifle Barrel
Michaels Machines
$1,437.95MM HK 23E (5.56/.223) Heavy Rifle Barrel Brand new US-made custom rifle barrel. Quick change HK23E, MM23E or HK13 Barrel. A must-have spare for your HK rifle or MG. Factory Barrels are hard to find and expensive, but these barrels are of great...HKP-02513$1,437.95 -
Out Of Stock
MM HK UMP 9mm Conversion Kit - 16 inch Barrel
Michaels Machines
$889.95HK UMP 9mm Conversion Kit - US-Made UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in, with the...HKP-02284$889.95 -
Out Of Stock
PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH
PTR
$163.95PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH New US made Barrel by PTR for the HK93,33 style of firearms. Specifications: Made In The USA 922r Compliant Counts as 1 US Made Part Overall length 16.1" 4140 Ordnance Grade Steel Threaded 15x1 RH 1:9...HKP-16458$163.95 -
On Sale
PTR PDW (7.62x39) 9 inch Barrel
PTR
Now: $99.95Was: $149.95PTR PDW 7.62X39 Pistol or SBR Barrel- USA PTR Industries manufactured PTR PDW Barrel. As a bonus, each barrel counts as one US-made part for 922r compliance. Comes new in the white, never installed, and ready for an HK project. Features: 7.62 X 39mm...HKP-14530Now: $99.95Was: $149.95 -
RCM HK MP5N 9mm Barrel - Threaded 1/2x32 - 3-Lug
RCM
$179.95RCM HK MP5N 9mm Barrel - Threaded 1/2x32 - 3-Lug This MP5N barrel delivers exceptional value, crafted from premium Cold Hammer Forged Steel and treated with a durable nitride process. It easily accommodates suppressors and other muzzle attachments. Brand...HKP-16967$179.95 -
RCM HK P30 .40 S&W Tactical Barrel - Threaded 14.5x1 LH
RCM
$225.00RCM HK P30 .40 S&W Tactical Barrel - Threaded 14.5x1 LH 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 P30...HKP-16221$225.00 -
RCM HK VP9 Match 9mm Barrel - Threaded 13.5x1 LH
RCM
$262.50RCM HK VP9 Match 9mm Barrel - Threaded 13.5x1 LH Each barrel is made from ordnance grade steel, heat treated, and finished inside and out in the ultra-desirable nitride finish. The perfect barrel for use as a spare or for adding muzzle devices such as...HKP-21068$262.50 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Handle
H&K Heckler & Koch
$79.95HK German Factory HK21E/23E & HK11E/13E Barrel Handle - New Factory German fiberglass/polymer extended E barrel handle. This is also considered an upgrade for older style HK21 barrel handles Compatible With: HK23E HK21E HK11E HK13E MM23E, 21E,...HKP-00243$79.95 -
H&K HK P7M13 9mm Barrel
H&K Heckler & Koch
$479.95H&K HK P7M13 9mm Barrel Brand new HK German P7M13 factory spare barrel. Cold hammer forged and the real deal. No longer made or available as all HK P7 parts are out of production. Compatible With: HK P7M13HKP-17907$479.95 -
Out Of Stock
H&K HK P9S 9mm Barrel
H&K Heckler & Koch
$899.95H&K HK P9S 9mm Barrel No longer made or available. Last call on this rare and no longer made offering. We have the last of these barrels to ever be offered.HKP-17655$899.95 -
Out Of Stock
PTR HK G3/91 (7.62x51/.308) Match Grade Barrel - Threaded 15x1
PTR
$199.95PPTR HK G3/91 (7.62x51/.308) Match Grade Barrel - Threaded 15x1 Each barrel is current PTR production and has the proper number and depth of flutes for optimum functionality. This barrel is a medium contour barrel that is larger in diameter than a...HKP-00873$199.95 -
RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 13.5x1
RCM
$214.95RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your P30L to shoot the ubiqutous 9mm cartridge. Includes a thread protector. Each barrel is made from ordnance-grade steel,...HKP-21788$214.95 -
RCM HK33K .300 BLK K Length Barrel - Threaded 5/8x24
RCM
$234.95RCM HK33K .300 BLK K Length Barrel - Threaded 5/8x24 Each barrel is designed for use with popular AAC-Style quick detach muzzle brakes and suppressors featuring a 5/8x24 thread pitch. It is also suitable for most .300 BLK suppressors and applications...HKP-16952$234.95