HK MP5/K & SP5/K Barrels
Optimize your MP5, SP5, or HK clone with premium barrels. Choose from HK factory barrels, threaded options for suppressors, and top-tier aftermarket brands like RCM for enhanced accuracy.
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RCM MP5 9mm Trunion
RCM
$74.95RCM MP5 9mm Trunion 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$74.95 -
HKP MP5 9mm Barrel Extension
HKP HK Parts
$49.95MP5 3-Lug Barrel Barrel Extension, Fake Suppressor US made MP5, HK94 solid aluminum fake suppressor, barrel extension. That slips over the 3-lug 9mm MP5 barrel and then pinned in place to meet the overall 16" barrel length required for rifle builds...HKP-18000$49.95 -
B&T MP5K, SP5K, SP89 - 3 Lugged & Threaded Barrel - 1/2 X 28
B&T Brugger & Thomet
$349.95B&T Manufactured MP5K, SP89 & SP5K - PDW Barrel 3 Lug - 1/2 X 28 New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. New Swiss manufactured from...HKP-17894$349.95 -
RCM HK MP5K/MP5K-N 1/2 X 28 3 Lug Barrel - Black
RCM
$174.95Barrel - 1/2 X 28 - 3 Lug - MP5K, MP5K-N Machined from a Cold Hammer Forged Blank to the latest spec MP5K-N (PDW) barrel with the HK factory correct and updated 16 flutes in the chamber. 3 lugged & threaded & manufactured to meet the specs of...HKP-19330$174.95 -
HKP MP5 9mm Navy Barrel - 3 Lug & Threaded 1/2 X 28
HKP HK Parts
$179.95MP5 9mm Navy Barrel 3 Lug & Threaded - 1/2 X 28 High quality, US-made MP5-N barrel. Built to last and finished in resiliant Nitride. Precision milled to the latest specs with the factory correct and updated 16 flutes in the chamber. Three lug &...HKP-17926$179.95 -
RCM MP5K/SP89/SP5K 9mm RS Trunion
RCM
$74.95MP5K Reverse Stretch- Trunion US-made to exact factory HK specifications for the HK MP5K, SP89 9mm builds. There is a difference between the MP5K and the MP5 trunion. This offering is the correct trunion for the MP5K and all MP5K PDW Variants. Including...HKP-02242$74.95 -
HKP MP5K 9mm Trunion
HKP HK Parts
$57.95HK MP5K Trunion - USA US made to exact factory HK specifications for the HK MP5K type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunions on the market. Machined to HK spec making...HKP-17964$57.95 -
RCM HK34 MP5 9mm Barrel - 16.5" - CHF
RCM
$264.95RCM HK34 MP5 9mm Barrel - 16.5" - CHF Each 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 with the...HKP-00927$264.95 -
H&K MP5, MP5K 3 Lug Blank Firing Adapter
H&K Heckler & Koch
$139.95H&K MP5, MP5K 3 Lug Blank Firing Adapter This part attaches to the end of the 3-lug barrel tip and will allow the use of 9mm blanks for training. A brand new HK German manufactured part.HKP-01990$139.95 -
RCM MP5 SD Barrel CHF
RCM
$189.95MP5 SD Barrel CHF - RCM This part is made in the USA of Cold Hammer Forged (CHF) Steel. This high-quality barrel is processed using the highly desirable Nitride process, which creates a super durable finish. Precision milled to the latest specs...HKP-02118$189.95 -
Out Of Stock
HKP MP5 SD 9mm Front End Kit
HKP HK Parts
$0.00HK MP5 SD Front End Build Kit HK MP5 SD Front End Build Kit. Each Kit Comes With Everything Need To Build An MP5 SD Front End With The Exception Of The Actual Suppressor.Each kit consists of all new HK Parts featuring the finest USA (HK PARTS) made...HKP-02399$0.00 -
HKP MP5K 9mm Fake Suppressor/Barrel Extension
HKP HK Parts
$59.95MP5K 3-Lug Barrel Barrel Extension, Fake Suppressor US made MP5K solid aluminum fake suppressor, barrel extension.Slips over the 3-lug MP5K PDW barrel and then pinned in place to meet the overall 16" barrel length required for rifle builds. Made in one...HKP-18001$59.95 -
B&T MP5 - 3 Lugged & Threaded Barrel - 1/2 X 28
B&T Brugger & Thomet
$378.95B&T MP5 3-Lug Threaded Barrel 1/2 X 28 New from B&T Switzerland, cold hammer forged (CHF), properly factory specification fluted & nitrided MP5 barrels manufactured exclusively for MP5's. The firearms community has long known of the close...HKP-17955$378.95 -
HKP MP5 40/10 Trunion
HKP HK Parts
$139.95MP5 40, MP5 10mm TrunionUS made to exact factory HK specifications for the HK MP5, 40/10mm trunion type builds. Machined completely from ordnance grade steel and heat-treated to factory specs.Each has the bullet guides pre-installed and included. These...HKP-02737$139.95 -
HKP MP5 .40 S&W Threaded & 3-Lugged Barrel
HKP HK Parts
$249.95MP5 .40 Cal 3-Lug & Threaded - 9/16 X 24Newly manufactured US Made  Melonited (nitride) MP5 .40 barrel that is 3 lugged and threaded with matching thread protector. This is a barrel offering that is made to the highest standards and tolerances and...HKP-16402$249.95 -
HKP MP5SD 9mm Barrel
HKP HK Parts
$169.95HK MP5-SD 9mm BarrelMade in the USA of 416 Stainless Steel. This high quality barrel is processed using the highly desirable Nitride process which creates a super hard durable finish. Precision milled to the latest specs with the factory correct and...HKP-17755$169.95 -
$299.95 -
RCM MP5 3 Lug barrel - CHF
RCM
$189.95MP5 Cold Hammer Forged Barrel 9mm 3-lug Barrel Made in the USA of Cold Hammer Forged (CHF) Steel. Each high-quality barrel is processed using the highly desirable Nitride process (the same process as Sig Sauer uses on all...HKP-02040$189.95 -
Out Of Stock
HKP MP5K/SP89/SP5K 9mm PDW Threaded Barrel - 1/2 X 32
HKP HK Parts
$169.95Premium HK MP5K-N 9mm Barrel Threaded 1/2 X 32 Precision milled to the latest spec MP5K-N (PDW) barrel with the HK factory correct and updated 16 flutes in the chamber. 3 lugged & threaded & manufactured to meet the specs of all suppressors and...HKP-16968$169.95 -
RCM MP5K/SP89/SP5K 9mm 3-Lug Barrel - CHF
RCM
$169.95Premium Cold Hammer Forged HK MP5K 3-Lug 9mm Barrel It is the only US-made barrel using the same steel and CHF process that Heckler & Koch uses themselves. Precision milled to the latest spec MP5K-N (PDW) barrel with the HK factory correct and...HKP-01764$169.95 -
B&T MP5K/SP89/SP5K 9mm 3 Lugged & Threaded Barrel - 1/2 X 32
B&T Brugger & Thomet
$399.95B&T Manufactured MP5K, SP89 & SP5K - PDW Barrel 3 Lug - 1/2 X 32 New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. The firearms community has long...HKP-17908$399.95 -
RCM HK MP5 10mm 9/16 X 24 Barrel
RCM
$299.95RCM HK MP5 10mm Barrel 9/16 X 24 with Thread ProtectorHKP-21158$299.95 -
B&T MP5 - 3 Lugged & Threaded Barrel - 1/2 X 32
B&T Brugger & Thomet
$449.95New from B&T Switzerland, cold hammer forged (CHF), properly factory specification fluted & nitrided MP5 barrels manufactured exclusively for MP5's.The firearms community has long known of the close working relationship between H&K Germany...HKP-17956$449.95 -
HKP MP5 40/10 Fake Suppressor/Barrel Extension
HKP HK Parts
$69.95HKP MP5 40/10 Fake Suppressor/Barrel Extension 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 over the...HKP-00889$69.95 -
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 -
RCM MP5-N 9mm Barrel - Threaded 1/2 X 32 & 3 Lug
RCM
$194.95Made in the USA of Cold Hammer Forged (CHF) Steel. This is the highest quality, best valued US made MP5-N barrel available. This high quality barrel is processed using the highly desirable Nitrite process (same process as Sig Sauer uses on all barrels)...HKP-16967$194.95 -
HK MP5/K Barrel Extension Faux Suppressor - 15x1 RH
USA
$179.95HK MP5/K Barrel Extension Faux Suppressor - 15x1 RH Perfect for that rifle build or for those looking for the MP5K-N suppressed look. Dakota Tactical Review Of This Exciting New Product On An MP5: DTAC Suppressor Review Specifications: Overall length: 8...HKP-20890$179.95 -
HK Parts HK SP5 1/2 X 28 Thread Protector
HKP HK Parts
$26.95HK Parts SP5 Thread Protector - 1/2 X 28 A great replacement item to have on hand for lost or damaged thread protectors or thread caps. This part is compatible with all factory-specification SP5 barrels. Compatible With: HK SP5 *Will not...HKP-21375$26.95 -
MP5K .40 S&W 3 Lug & Threaded Barrel
$299.95US Made MP5K-PDW 40 Barrel that is threaded and 3 lugged with a 9/16 x 24 thread protector. Rare & hard to find only a few are available.HKP-02318$299.95 -
RCM HK MP5K 1/2 X 32MM 3 Lug Barrel
RCM
$199.95Barrel – 1/2 X 32 – 3 Lug – MP5K, MP5K-N Machined from a Cold Hammer Forged Blank to the latest spec MP5K-N (PDW) barrel with the HK factory correct and updated 16 flutes in the chamber. 3 lugged & threaded & manufactured to meet the specs of all...HKP-20806$199.95 -
$299.95 -
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 -
H&K HK MP5-40 Factory Barrel
H&K Heckler & Koch
$1,495.00Threaded Barrel - 3-Lugged- NIW - HK MP5 .40New MP5 .40 barrel.Factory-installed sight tower with sight/sling eyelets and factory finish. Rare & hard to find only a few are available. This is a one time offering never to be available again as these...HKP-19349$1,495.00 -
H&K MP5 .40 S&W Threaded & 3-Lugged Barrel
H&K Heckler & Koch
$599.95H&K MP5 .40 S&W Threaded & 3-Lugged Barrel German HK Barrel that is threaded and three lugged with the factory correct thread pitch (14 x .75) and thread protector. Pulled out from demilled MP5/40's, this is a rare part, and only a few are...HKP-01638$599.95 -
Out Of Stock
MFI MP5K 9mm 3-Lug Barrel Extension/Faux Suppressor
MFI
$179.95MP5K 3-lug barrel extension, Fake suppressor - USA Total weight is 14 oz made from steel & aluminum, overall diameter is 1.4 inches.Each faux suppressor is designed to attach to the 3 lug MP5K 3 lugged barrel and can be permanently attached (blind...HKP-18007$179.95 -
RCM HK MP5K 10mm 9/16 X 24 Barrel
RCM
$299.95RCM HK MP5K 10mm Barrel 9/16 X 24 with Thread ProtectorHKP-21157$299.95