HK MP5/SP5 Barrels
Upgrade your MP5/SP5 with precision-engineered H&K barrels. We offer a variety of MP5/SP5 barrel lengths and calibers, including threaded and non-threaded options, ensuring superior accuracy and durability. Our H&K MP5/SP5 barrels are perfect for builds or upgrades, providing top performance for all shooting needs.
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H&K Barrel Retaining Pin - 5mm Standard Size
H&K Heckler & Koch
$9.95H&K Barrel Retaining Pin - 5mm Standard Size Each barrel pin is used for installing a new or replacement barrel. HK suggest using a new factory barrel pin when installing or reinstalling a HK barrel. We also offer the HK oversized barrel pins for...HKP-00071$9.95 -
HKP MP5SD Sealing Ring - Enhanced
HKP HK Parts
$9.95HKP MP5SD Sealing Ring - Enhanced The enhanced sealing ring is made from a newer, longer-lasting material as well as having a slightly thicker profile for secure sealing. The MP5SD sealing ring is the gasket that seals the SD suppressor against the...HKP-18053$9.95 -
On Sale
HKP SD Barrel Port Brush Handle
HKP HK Parts
Now: $29.95Was: $39.95HKP SD Barrel Port Brush Handle The HK Parts SD brush handle is the perfect tool to pair with your factory H&K or HK Parts barrel brush. Unlike other brush handles, the HKP handle features a locking clamp allowing the user to rotate the brush...HKP-21448-MNow: $29.95Was: $39.95 -
90 Series Barrel Pin Jig
HKP HK Parts
$119.9590 Series Barrel Pin Jig This is the perfect jig for the installation and removal of barrel pins found in all HK 90 series rifles and pistols. This jig set is a companion set for those who have flat-bending jigs and other...HKP-08928$119.95 -
HKP HK MP5SD 9mm Barrel Port Brush
HKP HK Parts
$79.95HKP HK MP5SD 9mm Barrel Port Brush The HKP MP5SD barrel port brush can be rotated in either direction for stiffer or softer cleaning when using our proprietary handle. Compatible with any brush handle featuring the factory thread pitch. Compatible...HKP-20989$79.95 -
H&K MP5SD Sealing Ring
H&K Heckler & Koch
$19.95H&K MP5SD Sealing Ring Each HK MP5SD sealing ring is the sealing gasket that seals the SD suppressor against the trunnion on factory HK MP5SD's or factory correct SD conversions. This is a typical wear item as they do degrade and crack. Compatible...HKP-00142$19.95 -
HKP 9mm Enhanced Texas Style Thread Protector - Threaded 13.5x1 LH
HKP HK Parts
$19.95HKP 9mm Enhanced Texas Style Thread Protector - Threaded 13.5x1 LH This enhanced thread protector, made from stainless steel in a 13.5x1 LH thread, is designed to fit over and protect the crown of any threaded barrel. Its unique design offers added...HKP-17978$19.95 -
RCM MP5 9mm Trunnion
RCM
$64.95RCM MP5 9mm Trunnion US made to exact factory HK specifications and machined completely from ordnance grade steel and heat treated to factory specs. Compatible With: MP5, 94 MP5K SP89 Clones or other custom buildsHKP-01193$64.95 -
Out Of Stock
B&T HK MP5SD 9mm Barrel - Threaded 18x1 RH
B&T Brugger & Thomet
$449.95B&T HK MP5SD 9mm Barrel - Threaded 18x1 RH New from B&T Switzerland, this cold hammer forged (CHF), ported, and nitrided barrel is designed to meet factory HK specifications exclusively for MP5SD models. With a long-standing relationship with...HKP-17957$449.95 -
HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28
HKP HK Parts
$19.95HKP/H&K SP5/K 9mm Thread Protector - Threaded 1/2x28 An essential replacement thread protector for lost or damaged thread protectors & caps. This part is compatible with all factory specification SP5 barrels. Specifications: Made In The...HKP-21375$19.95 -
HKP (9mm) Thread Protector For Barrels - Threaded 1/2x28
HKP HK Parts
$14.95HKP (9mm) Thread Protector For Barrels - Threaded 1/2x28 A must-have accessory to safeguard the threads on your threaded barrel, this thread protector is the finest available. It is the standard thread protector included with all HKPARTS threaded pistol...HKP-02646$14.95 -
RCM HK MP5SD 9mm Barrel - Threaded 18x1
RCM
$199.95RCM HK MP5SD 9mm Barrel - Threaded 18x1 Made in the USA from Cold Hammer Forged (CHF) steel, this high-quality barrel features a durable nitride finish. Precision-milled to the latest specifications with updated 16 flutes in the chamber, it is designed...HKP-02118$199.95 -
HKP HK 9mm Enhanced Thread Protector - Threaded 1/2x28 RH
HKP HK Parts
$19.95HKP HK 9mm Enhanced Thread Protector - Threaded 1/2x28 RH This enhanced thread protector is crafted from stainless steel and designed for 1/2x28 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but...HKP-17977$19.95 -
HTA HK MP5SD Barrel Cleaning Tool
HiTec Arms
$119.95HTA HK MP5SD Barrel Cleaning Tool Barrel cleaning brush tool for integrally suppressed ported barrels. This is a good tool to have on hand for any MP5SD owner to clean carbon build up and avoid your suppressor seizing on your barrel. Multiple colors...HKP-21347-M$119.95 -
On Sale
H&K HK MP5/SP5 Barrel Assembly - Refinished
H&K Heckler & Koch
Now: $149.95Was: $399.95H&K HK MP5/SP5 Barrel Assembly - Refinished / Like New German H&K like new refurbished cold hammer forged barrel for MP5/SP5/HK94. Features a tri-lug for suppressor attachment. The most ideal barrel for future builds or re-barreling your current...HKP-21435Now: $149.95Was: $399.95 -
H&K MP5SD 9mm Barrel Port Brush
H&K Heckler & Koch
$164.95HK Factory MP5SD Barrel Port Brush A much-needed barrel brush to keep the barrel clean on all factory HK MP5SD'S. Fits HK factory SD barrels or in-spec clone barrels such as RCM US-made barrels. Compatible With: MP5SD models Grab a...HKP-00137$164.95 -
HKP HK MP5SD Barrel Port Brush Replacement Cartridge
HKP HK Parts
$38.75HKP MP5SD Replacement Cartridge for Barrel Port Brush Replacement cartridge for HK MP5SD barrel port brush. Our replacement cartridge is compatible with factory HK barrel brush assemblies. Compatible With: HK MP5SDHKP-21294$38.75 -
HKP MP5 9mm Barrel Extension
HKP HK Parts
$49.95HKP MP5 9mm Barrel Extension The MP5 3-lug barrel extension functions as a fake suppressor to give the standard 8.85" barrel an overall length of 16" for rifle builds. The extension slips over the tri-lug adapter and is pinned into place by a...HKP-18000$49.95 -
RCM HK MP5 9mm Navy Barrel - Threaded 1/2x28 - 3-Lug
RCM
$164.95RCM HK MP5 9mm Navy Barrel - Threaded 1/2x28 - 3-Lug This MP5N barrel is made in the USA from Cold Hammer Forged steel, providing top quality and value. It is treated with a durable nitride finish, similar to Sig Sauer's process, for a hard, resilient...HKP-01162$164.95 -
B&T HK MP5 9mm Barrel - Threaded 1/2x28 - 3-Lug
B&T Brugger & Thomet
$378.95B&T HK MP5 9mm Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, these MP5 barrels are cold hammer forged, fluted, and nitrided to exact HK specifications. B&T's close relationship with H&K and extensive history of...HKP-17955$378.95 -
Out Of Stock
HKP MP5 9mm Navy Barrel - Threaded 1/2x28 - 3-Lug
HKP HK Parts
$179.95HKP MP5 9mm Navy Barrel - Threaded 1/2x28 - 3-Lug High quality, US-made MP5-N barrel. Built to last and finished in resilient nitride. Precision milled to the latest specs with the factory correct and updated 16 flutes in the chamber. Three lug &...HKP-17926$179.95 -
Out Of Stock
HKP MP5SD 9mm Barrel - Threaded 18x1
HKP HK Parts
$169.95HKP MP5SD 9mm Barrel - Threaded 18x1 Made in the USA from 416 stainless steel, this high-quality barrel undergoes the highly desirable nitride process for a super hard, durable finish. Precision milled to the latest specifications, it features...HKP-17755$169.95 -
H&K 9mm Thread Protector - Threaded 1/2x32 RH
H&K Heckler & Koch
$39.95H&K 9mm Thread Protector - Threaded 1/2x32 RH A great replacement item for lost or damaged thread protectors & caps. This part is compatible with all factory-spec MP5 Navy or MP5KN barrels. Specifications: Overall Length .610" Threaded 1/2x32...HKP-00108$39.95 -
RCM HK34 MP5 9mm Barrel - Non-Threaded
RCM
$264.95RCM HK34/94 MP5 9mm Barrel - Non-Threaded Each non-threaded barrel is hand-selected from the finest cold hammer forged steel (CHF) 41V45 barrel blanks. Expertly profiled and chambered in the desirable 16 flute chamber profile. Each barrel is finished...HKP-00927$264.95 -
DTAC HK MP5SD Front End Kit
DTAC Dakota Tactical
$1,199.95Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further. Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...HKP-21318$1,199.95 -
RCM HK MP5 9mm Barrel - Non-Threaded 3-Lug
RCM
$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...HKP-02040$149.95 -
HKP 3-Lug Adapter - Threaded 1/2x32
HKP HK Parts
$49.95HKP 3-Lug Adapter - Threaded 1/2x32 The HK 3-Lug Adapter, internally threaded with 1/2x32 threads, can easily attach to any existing 1/2x32 threaded parts. This is the finest machined adapter on the market, made in the USA to exact HK German 3-lug...HKP-00107$49.95 -
HKP MP5 40/10 Trunnion
HKP HK Parts
$139.95MP5 40 & MP5 10mm Trunnion Machined from ordnance-grade steel and heat-treated to factory specs. Each has the bullet guides pre-installed and included. These are the best USA-made trunnions on the market. Machined to HK spec, making the installation...HKP-02737$139.95 -
B&T HK MP5 9mm Barrel - Threaded 1/2x32 - 3-Lug
B&T Brugger & Thomet
$449.95B&T HK MP5 9mm Barrel - Threaded 1/2x32 - 3-Lug New from B&T Switzerland, this cold hammer-forged (CHF) and nitrided barrel is manufactured to exact HK factory specifications exclusively for MP5 models. B&T, a trusted partner of H&K...HKP-17956$449.95 -
HKP HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug
HKP HK Parts
$249.95HKP HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug Newly manufactured US Made melonited nitride MP5 .40 S&W barrel that is 3-lugged and threaded with matching thread protector. This is a barrel offering that is made to the highest...HKP-16402$249.95 -
HKP HK 9mm Enhanced Thread Protector - 13.5x1
HKP HK Parts
$19.95HKP HK 9mm Enhanced Thread Protector - 13.5x1 This enhanced thread protector is crafted from stainless steel and designed for 13.5x1 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but also...HKP-21603$19.95 -
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 -
HK94 Clone Original Vented Barrel Shroud w/ Grip
E&L MFG
$139.95HK94 Clone Original Vented Barrel Shroud w/ Grip This is the OEM HK part. The vertical grip is detachable and will not fit heavier barrels such as Vector or MKE barrels. Please Note: This will NOT fit 3 lug barrels.HKP-00020$139.95 -
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 -
RCM HK MP5 10mm Barrel - Threaded 9/16x24
RCM
$279.95RCM HK MP5 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5 with the RCM HK MP5 10mm Barrel. This barrel is precision engineered for superior accuracy and durability. This barrel features a 9/16x24 thread and includes a thread protector...HKP-21158$279.95 -
HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug
HKP HK Parts
$69.95HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug This fake suppressor is used as a barrel extension to bring your H&K MP5 40/10 8.85" barrel to legal conforming standards of 16" so you do not have to register the weapon as an SBR. This fits...HKP-00889$69.95 -
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 MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug
RCM
$279.95RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5 .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined to impeccable standards. With the correct...HKP-21582$279.95 -
RCM MP5 & HK34 9mm Barrel - Threaded 1/2x28
RCM
$204.95RCM MP5 & HK34 9mm Barrel - Threaded 1/2x28 Each barrel is hand-selected from the finest cold hammer forged (CHF) 41V45 steel blanks, expertly profiled and chambered in the desirable 16 flute chamber profile. Finished with a durable...HKP-17762$204.95 -
Out Of Stock
H&K MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug
H&K Heckler & Koch
$599.95H&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