All Parts
At HK PARTS, we bring you a wide array of high-quality H&K accessories and components for your favorite firearms. Whether you're upgrading your H&K pistol or rifle, or even looking for parts kits, we've got you covered. Discover a range of top-rated components for popular models like VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, we have it all. Enhance your firearm's performance and functionality with our premium components.
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Out Of Stock
H&K MP5K/SP89/SP5K 9mm Incomplete End Cap
H&K Heckler & Koch
$0.00HK Factory German MP5K, SP-89, SP5K End Cap - Incomplete Each pistol end cap is OEM HK German MP5K, MP5K-N, SP5K, SP89 stripped end cap. Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K clones or other custom buildsHKP-18208$0.00 -
H&K SG1 Stock Rear Spacer Tube
H&K Heckler & Koch
$27.95H&K SG1 Stock Rear Spacer Tube This is the longer of the two bars that goes towards the rear of the stock. No longer in production.HKP-16986$27.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Left
H&K Heckler & Koch
$9.95HK UMP & USC - Left Side Hammer Spring For All Lowers A high-wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With: HK UMP models 45, .40, & 9mm. USC .45 and other conversion...HKP-01898$9.95 -
H&K Universal Harris Bipod Adapter
H&K Heckler & Koch
$199.95HK Factory Harris Bipod Adapter - Low Profile This adapter is to attach the Harris bipod to any Picatinny rail. It is compatible with all Picatinny railed forearms or applications. A new HK German manufactured part made for the HK 416, MR556, HK417...HKP-01852$199.95 -
H&K VP9SK, VP40SK Back Strap - Medium - FDE
H&K Heckler & Koch
$29.95H&K VP9SK, VP40SK Back Strap - Medium - FDE New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18581$29.95 -
H&K VP9SK, VP40SK Back Strap - Small - OD Green
H&K Heckler & Koch
$29.95H&K VP9SK, VP40SK Back Strap - Small - OD Green New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18971$29.95 -
HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin
HDPS
$39.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin This sling pin will replace the current production stock Block B hardware and upgrade to the Sling Pin Pull Style version.HKP-16339$39.95 -
Hi-Viz HK P7M8/P7M10/P7M13 Fiber Optic Sight Set
Hi-Viz
$59.95Hi-Viz HK P7M8/P7M10/P7M13 Fiber Optic Sight Set This HK-P7 has a green rear sight and an interchangeable front sight included. It includes a rotating carry case and Litepipes in red and green. The front sight will fit ALL P7 & PSP models. The rear...HKP-16937$59.95 -
HK UMP (.45 ACP) Bolt Group
$369.95HK UMP .45 Tungsten Filled Semi Auto Bolt Group Complete. The semi auto bolt group is required for HK USC to HK UMP caliber conversions. Comes complete less the recoil assembly. Specifications: Tungsten filled Heat treated ParkerizedHKP-18751$369.95 -
HK VP9SK Warrior Holster OWB LH - Black
Comp-Tac
$74.95HK VP9SK Warrior Holster OWB LH - Black The Warrior Holster design offers a stealth footprint, outside the waistband carry that is perfect for OWB concealment. Easily accessible, designed for a smooth, fast draw the Warrior's close-fitting footprint can...hkp-18719$74.95 -
HKP (5.56/.223) Bore Cleaning Brush
HKP HK Parts
$1.95Bore Cleaning Brush For .223/556 This item is ideal to have on hand for cleaning the bore of the barrel. This item is highly recommended for cleaning.HKP-03331$1.95 -
HKP 15 Round HK VP9SK, Hk P30SK 9mm Magazine with Finger Rest - Red
$69.95HK VP9SK & P30SK 9mm - 15 Round Magazine with HK Red Finger Rest New German VP9SK/P30SK HK manufacture 10 round magazine body, follower, spring, locking plate combined with the HK Parts +5 magazine extension installed & ready to use. This...HKP-20567$69.95 -
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 -
Out Of Stock
HKP 38 Round HK MP5 Magazine
HKP HK Parts
$79.95MP5, MP5K 9mm Curved Magazine - 38 Round - Red Follower New USA manufactured MP5, MP5K - 38 round magazine. These units will come with a red follower installed for a quick and easy visual identification of an empty magazine. As an added bonus each mag...HKP-17394$79.95 -
Sale
HKP AR-15 Low Profile Gas Block
HKP HK Parts
Now: $14.95Was: $29.95AR15, M4 Billeted Low Profile Gas Block - Stainless Steel Made to strict military specifications. These high quality components will provide excellent fit and reliable function in your AR series platforms. These AR-Stoner parts are perfect for upgrading...HKP-18088Now: $14.95Was: $29.95 -
HKP Beanie
HKP HK Parts
$24.99HKP Beanie Get your hands on some of our premium new apparel! Please note this beanie only has the HKP and MP5 logo printed on one side of the tag.HKP-21050$24.99 -
HKP Front Sight Tower Ambi Sling Attachment Weldment
HKP HK Parts
$14.95HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to have the ability to have an ambidextrous sling loop at...HKP-17881$14.95 -
Sale
HKP Glock 19 9mm Fluted Barrel - Threaded 1/2x28
HKP HK Parts
Now: $139.95Was: $239.95HKP Glock 19 9mm Fluted Barrel - Threaded 1/2x28 The Adams Arms Glock 19 9mm Match Grade Box Fluted Barrel is an improved drop-in fit designed for enhanced accuracy with no gunsmith fitting required. Machined to tighter tolerances, it features a SAAMI...HKP-18872Now: $139.95Was: $239.95 -
HKP HK 93/53/33 (5.56/.223) Ambidextrous 0,1 Trigger Pack
HKP HK Parts
$379.95HKP HK 93/53/33 (5.56 / .223) Ambidextrous 0,1 Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an all...HKP-17233$379.95 -
HKP HK G36C Barrel - Black
HKP HK Parts
$499.95HKP HK G36C Barrel - Black Brand new HK G36C barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36C barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the...HKP-18195$499.95 -
Out Of Stock
HKP HK MR556/416 SS Firing Pin
HKP HK Parts
$29.95Firing Pin For HK 416 & MR556 Firearm - USA Made from hardened stainless steel and comes new in the white. Compatible With: HK416 HK MR556 HK CR556 HK M27HKP-01756$29.95 -
Sale
HKP HK P30L Quick Detach Tactical Compensator - Brass
HKP HK Parts
Now: $129.95Was: $249.95HKP HK P30L Quick Detach Tactical Compensator - Brass Limited custom made offering! In stock and ready to ship! The HK Parts P30L Comp Weight™, compensator is the world's first quick detach Comp Weight™, compensator. That slides effortlessly...HKP-18475Now: $129.95Was: $249.95 -
Out Of Stock
HKP HK UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release - Extended
HKP HK Parts
$24.95UMP Paddle Magazine Release - Extended Billeted alloy UMP magazine release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release you get more surface area as well as a much...HKP-17919$24.95 -
HKP HK UMP Stock Block - B Push Pin
HKP HK Parts
$34.95Stock Block B Sling Pin With Loop washer & Quick Pull Pin for UMP/USC (.40 S&W/ .45 ACP/9mm)HKP-21249$34.95 -
Out Of Stock
HKP HK UMP, USC & G36, SL8 Sear
HKP HK Parts
$14.95HK Complete Sear G36, UMP, USC, SL8 Made in the USA Compatible With: HK UMP HK USC HK G36 HK SL8HKP-19555$14.95 -
Sale
HKP Mil-Spec Buffer Tube Kit
HKP HK Parts
Now: $39.95Was: $54.95Mil-Spec Buffer Tube Kit Compatible With: HK MR556 & 416 AR-15 style platforms Includes: Made with T7 7075 aircraft-grade aluminum Made in the USA with a polished inside tube Milspec triple hard coat Teflon anodized finish Each unit comes with a...HKP-02735Now: $39.95Was: $54.95 -
HKP MP5 9mm Reverse Stretch Pistol Build Kit - Complete
HKP HK Parts
$1,874.95MP5 Reverse Stretch 9mm Pistol Build Kit Complete - German & USA Made Parts MP5-RS 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol,...HKP-17121$1,874.95 -
HKP MP5, MP5K Rear Sight Base
HKP HK Parts
$19.95MP5 & MP5K Rear Sight Base- Weldment The only factory-correct sight base with the factory HK German side axis grooves. Compatible With: HK MP5, 94 HK MP5K, SP89 HK MP5 40, MP5 10 Clone or other custom buildsHKP-02450$19.95 -
Out Of Stock
HKP MP5K/SP89 9mm Trigger Group 2 Position Housing 0,1- Safe, Semi Only
HKP HK Parts
$0.00HKP/H&K MP5K/SP89 9mm Safe & Semi Only Trigger Group - Clipped & Pinned Introducing a cost-effective alternative to the rare and expensive all-German HK FBI or 0,1 ambidextrous trigger group, now available in a 2-position Navy factory German...HKP-17241$0.00 -
HKP MP5SD 9mm Cocking Tube - For Lefties
HKP HK Parts
$99.95MP5SD Cocking Tube - US Made - For Left Handed Shooters HK German MP5SD spec cocking tube for use on MP5SD style builds or custom SD builds. These are the finest MP5SD cocking tube ever offered. Each unit is made from the original factory HK prints...HKP-18918$99.95 -
JMAC Customs Extended BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter
JMAC Customs
$239.95JMAC Customs Extended BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter The YHM-2050 HD (heavy duty) 3-Lug adapter is a quick-attach mounting option designed to provide added strength and longevity to your 3-Lug equipped firearm. This...HKP-20520$239.95 -
Sale
JMAC HK G36 (5.56/.223) Muzzle Device - Threaded 15x1
JMAC Customs
Now: $77.95Was: $99.95JMAC HK G36 (5.56/.223) Muzzle Device - Threaded 15x1 The RRD-360 Muzzle Device from JMAC Customs is unlike others on the market today. This device vents gasses 360 degrees away from your muzzle requiring less effort from the shooter to manage...HKP-21258Now: $77.95Was: $99.95 -
JMAC Universal Picatinny 8" Stock with 1913 Folding Mech
JMAC Customs
$304.90 - $309.90JMac 8" Stock with 0.275" Cheek Rise - 1913 Attachment Feautures: New Integrated Rubber Buttpad 2x Integrated QD Sling Socket 8" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers Compatible with JMAC & SIG folding mechanisms 7075...HKP-21241-M$304.90 - $309.90 -
Lazy Wolf VP Series Trigger Safety Tab Kit - F3 Full Flat Face - Gold
Lazy Wolf
$19.95F3 Full Flat Face VP Series Trigger Tab, Spring Set - Lazy Wolf Guns - Gold Replacement trigger safety tab, spring, and roll pin kit as pictured for the HK VP9 series of LWG triggers. Ideal if you need a replacement LWG trigger safety tab, spring and...HKP-20097$19.95 -
Sale
Magpul MOE Stock - Commercial Spec, AR15/M4 Carbines
Magpul
Now: $39.95Was: $54.95Magpul MOE (Magpul Original Equipment) Commercial-Spec Model for AR15/M4 Carbines Made in the USA, the MOE stock Commercial-Spec Model is a drop-in replacement buttstock for AR15/M4 carbines using commercial-spec-sized receiver extension tubes. The...HKP-10629Now: $39.95Was: $54.95 -
MM HK MSG90 (7.62x51/.308) Factory Correct T Rail Set
Michaels Machines
$389.95MSG-90 Style Receiver Reinforcement Left & Right Side Rail Set Each set is new in white and an exact reproduction of the factory German HK MSG-90 side receiver rails. These rails have the factory-correct holes for welding and the ejection port...HKP-00567$389.95 -
Odin Holsters HK P30SK Comp Weight™ Compensator RH Holster - Black
Odin Holsters
$79.95Odin Holsters HK P30SK Comp Weight™ Compensator RH Holster - Black The P30SK Comp Weight™ Compensator holster is an outside the waistband that allows the HK Parts Comp Weight™ to be installed as well. For a right-hand shooter with or...hkp-18842$79.95 -
Omega HK UMP Cocking Handle Assembly
OMEGA
$34.95Omega USC/UMP Cocking Handle Assembly Omega UMP cocking handle assembly is a great complete replacement for broken or worn out cocking handle assemblies. Everything you need for a complete replacement. US made by Omega. UMP cocking handle assembly...HKP-21271$34.95 -
PTR-32 (7.62x51/.308) Locking Piece - 70 degree
PTR
$63.95PTR-32 (7.62x51/.308) Locking Piece - 70 degree New PTR Locking Piece For PTR-32. Marked "70" for the PTR-32 series of rifles and pistols. This is a 70 degree locking piece. New PTR manufacture. This locking peice will also work for custom HK builds as...HKP-18519$63.95 -
RCM HK G3K (7.62x51/.308) Barrel - Threaded 15x1 RH
RCM
$244.95RCM HK G3K (7.62x51/.308) Barrel - Threaded 15x1 RH Manufactured to exact G3K specifications from cold hammer forged (CHF) steel, this barrel is a direct replacement for worn G3K barrels or ideal for your HKG3K build. It also counts as one US compliance...HKP-01499$244.95