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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H&K HK MR556/416 Buffer Retainer Pin
H&K Heckler & Koch
$3.95Buffer Retainer Pin For The HK MR556 & HK 416HKP-12704$3.95 -
Handguard Rail System Screw - HK416
H&K Heckler & Koch
$25.95HK416 Factory Handguard Rail System Screw This part has the "X" marked version where the bolt head and/or the HK sling hook tool can be utilized to tighten and release the screw pressure. This part is also compatible with the...HKP-02680$25.95 -
HKP/HK 9mm Enhanced Thread Protector - Threaded 1/2x28
HKP HK Parts
$19.95HKP/HK 9mm Enhanced Thread Protector - Threaded 1/2x28 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 also...HKP-17977$19.95 -
Lazy Wolf HK Reduced Power Hammer Spring - 12 lb.
Lazy Wolf
$9.95Lazy Wolf HK Reduced Power Hammer Spring - 12 lb. An exciting new offering as a joint collaboration from the widely renowned pistol smith Lazy Wolf Guns & HK Parts! This custom spring was designed exclusively by master trigger smith Rick Holm at LWG...HKP-18148$9.95 -
MKE PTR PDW Retractable Stock
MKE
$459.95MKE PTR PDW Retractable Stock A3 Factory new MKE stock professionally converted to fit PTR PDW rifles and pistols. This PTR PDW stock was modified with a heavy profile collapsing rod insert heat treated for longevity. The correct collapsing length on the...HKP-21376$459.95 -
Sale
Franklin Armory HK MP5/91/93 Binary Trigger Pack - HK-C1
FA Franklin Armory
Now: $629.99Was: $699.95Franklin Armory BFSIII HK-C1 Binary Trigger Pack For H&K 90 Series The BFSIII™ for HK is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest semi-automatic trigger on the market...HKP-18434Now: $629.99Was: $699.95 -
H&K 20 Round HK MR556/416 5.56/.223 Magazine - Black
H&K Heckler & Koch
$69.00H&K 20 Round HK MR556 & 416 5.56/.223 Magazine - Black New HK416 and MR556 Factory 20 Round Steel Maritime Coated Magazine. Will fit and work in all AR-15/M16 weapons. Perfect for those who need a lower profile magazine or who will be doing prone...HKP-00029$69.00 -
H&K 28 Round HK USPC/P2000 9mm Magazine - Black
HKP HK Parts
$74.95H&K 28 Round HK USPC/P2000 9mm Magazine - Black New HK German USPC, P2000 Magazine body combined and pre-installed along with the HK Parts 28 round mag extension kit fully installed. Each offering is a complete, fully assembled, ready for the range...HKP-17203$74.95 -
H&K 91/G3 (7.62x51/.308) Chamber Flute Brush
H&K Heckler & Koch
$25.95HK German .308/7.62mm Chamber Flute Brush- New This brush is a must-have for cleaning the chamber flutes on a G3/91-style firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly and render your HK firearm useless, until...HKP-00500$25.95 -
H&K G3 Buffer Screw Locking Washer
H&K Heckler & Koch
$0.95HK G3 Buffer Screw Locking Washer Used in good, working conditon.HKP-16983$0.95 -
H&K Grip Cap Replacement Spring
H&K Heckler & Koch
$4.95H&K Grip Cap Replacement Spring This is the replacement spring that is used on both the US and German made grip caps that can become damaged and broken with use. A great idea to have on hand as the spring will get bent and destroyed with use. We use...HKP-16408$4.95 -
H&K HK MR556/416 Slim Line Stock - RAL 8K
H&K Heckler & Koch
$249.95HK 416A5, HK416 & MR556 Slim Line Retractable Stock - RAL 8000 New from HK Germany the slim line retractable stock fits all commercial & milspec AR-15/M16 buffer tubes. Marked with the HK logo and issued on specialized HK 416, MR556 rifles...HKP-17602$249.95 -
HKP 90 Series Paddle Mag Release Easy Install Fixture
HKP HK Parts
$199.95HKP 90 Series Paddle Mag Release Easy Install Fixture The original one and only paddle mag release fixture. The perfect jig for the installation of the factory correct paddle mag release with the proper hole placement and an easy to use jig that will...HKP-17587$199.95 -
HKP HK G36/SL8 Family Armorer's Manual
HKP HK Parts
$19.95HK G36 & HK SL8 Family Armorer's Manualf This manual is the most comprehensive manual available for the G36 & SL8 family of firearms. The manual covers the G36 & SL8 family in-depth to include all aspects of history, origin, makeup,...HKP-00627$19.95 -
LSC/PTR Receiver Flat- MP5 9mm
LSC
$239.95MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...HKP-01431$239.95 -
Sale
Magpul 20 Round PMAG M3 Magazine - 7.62x51/.308
Magpul
Now: $17.95Was: $24.95Magpul PMAG 20-LR 20-Round 7.62 NATO The 7.62x51 NATO (.308 Winchester) PMAG 20LR is a cost-effective, highly reliable magazine for SR25/M110 pattern rifles featuring a 20-round capacity, constant-curve body, and snap-on impact/dust Cover. Designed...HKP-01651Now: $17.95Was: $24.95 -
Out Of Stock
MP5 Brush Combo - All Calibers
HK Parts, Heckler & Koch
$44.95HK German/USA Brush Set Combo All the HK custom brushes you will need to clean your barrel, chamber, chamber face, receiver, magwell, and magazines. These are the brushes you will need to properly clean and maintain your MP5. This will work with all MP5...HKP-16680$44.95 -
PTR HK 93/91/33/53/G3 (5.56/.223) & (7.62x51/.308) Central Stock Section With Butt Pad
PTR
$99.95U.S. HK 91, G3, PTR Central Stock Section Black With Butt Pad Compliant parts are hard to find and are important for keeping your HK G3, HK 91, HK33, and 93 build 922r compliant. Compatible With: HK G3, 91, PTR CETME HK 93, 33, 53 Other...HKP-00379$99.95 -
Out Of Stock
B&T MP5K/SP89/SP5K 9mm Tri-Rail Handguard
B&T Brugger & Thomet
$254.95B&T MP5K/SP89/SP5K 9mm Tri-Rail Handguard B&T Tri-Rail Handguard For HK MP5K, SP89, MP5K-N, MP5K-PDW Compatible With: All MP5K, SP5K, SP89 Specifications: Color: Black Height max: 48.4 mm Length max: 86 mm Length of right rail: 82 mm Length of...HKP-16889$254.95 -
Sale
Glock 33-Round 9mm Magazine - OD Green
Glock
Now: $29.95Was: $40.00Glock 33-Round 9mm Magazine - OD Green Each Glock magazine is constructed from a hardened steel insert encased in high tech polymer to protect the magazine and prevent deformation, even when dropped from a great height. The high quality spring and...HKP-19713Now: $29.95Was: $40.00 -
H&K Elbow Spring Spacer For Full-Auto
H&K Heckler & Koch
$5.95H&K Elbow Spring Spacer For Full-Auto - UsedHKP-03330$5.95 -
H&K HK P7 Series Firing Pin Spring
H&K Heckler & Koch
$7.95HK P7 Series Firing Pin Spring This item is a great spare to keep on hand, as this item is considered a high-wear item by HK. Compatible With: HK P7 PSP HK P7 M8 HK P7 M10 HK P7 M13HKP-00326$7.95 -
H&K HK USP Series Old Style Firing Pin Block Spring
H&K Heckler & Koch
$9.95HK USP Series Old Style Firing Pin Block Spring In order to use the new firing pin block spring, you also have to upgrade the firing pin, firing pin block, as well as the firing pin block spring. HK part #214192 has been replaced with...HKP-02149$9.95 -
HKP 2 Point Leather Sling - Black
HKP HK Parts
$49.95HKP 2 Point Leather Sling - Black These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan. Made in the USA from quality leather and hardware...HKP-20152$49.95 -
HKP 9mm Knurled Micro Comp - Threaded 1/2x28
HKP HK Parts
$29.95HKP 9mm Knurled Micro Comp - Threaded 1/2x28 The HK Parts Micro Comp & Thread Protector is a sleek, functional solution for enhancing your 9mm pistol's performance. Designed to be lightweight and efficient, this micro compensator easily attaches to...HKP-21124$29.95 -
HKP HK 91/G3 (7.62x51/.308) Stock Set - Jungle Green - Surplus
HKP HK Parts
$26.95Original German Army Used Surplus G3, 91, PTR Tropical/Jungle Green Stock Set Factory HK German production. Each stock set is used but in perfect working order. Each set is in overall good condition. Most will clean up nicely with a little TLC. A...HKP-16331$26.95 -
HKP HK P30L, HK P30LS Quick Detach Compensator - Black
$149.95HKP HK P30L, HK P30LS Quick Detach Compensator - Black Easy on, easy off - Quick Detach technology. The HK Parts P30L Comp Weight™ is the world's first quick detach Comp Weight™, compensator. That slides effortlessly onto your pistol frame...HKP-18083$149.95 -
Out Of Stock
RCM HK VP9SK 9mm Tactical Barrel - Threaded 1/2x28
RCM
$249.95RCM HK VP9SK 9mm Tactical Barrel - Threaded 1/2x28 Each VP9SK Tactical barrel is machined from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK VP9SK 9mm...HKP-19258$249.95 -
H&K 15 Round HK VP9/P30 9mm Magazine - Red Follower
H&K Heckler & Koch
$49.95HK VP9, VP9L & P30, P30L, P30S 9mm - 15 Round Magazine - Red Follower New HK German manufacture and factory fresh production. Each factory HK all-steel-bodied magazine holds 15 rounds of 9mm ammunition for use in all P30, P30L, P30S & HK VP9 9mm...HKP-21417$49.95 -
H&K 91/G3 (7.62x51/.308) Complete F/A Lower (SEF) - Green
H&K Heckler & Koch
$349.95German G3 Surplus Lower Complete - Green HK G3 SEF Steel Lower Complete. Each lower includes full auto trigger pack complete, selector lever, green grip, metal SEF grip frame, grip screw with screw washer. All of these parts are installed and ready to go...HKP-16215$349.95 -
H&K HK VP9, HK VP9L Optics Plate #4 DeltaPoint - Black
H&K Heckler & Koch
$48.95Optics Plate #4 DeltaPoint - HK VP9, VP9L New HK German OEM manufacture steel optics plate Compatible With: Leupold DeltaPoint HK VP9 OR, VP9 Tactical OR HK VP9L OR HK VP9 Match OR VP9SK OR **Plate only works with VP9, VPL pistols with factory optics...HKP-19255$48.95 -
HKP HK VP40 Gen 2 Rail Mount Compensator - Black
HKP HK Parts
$169.95HKP HK VP40 Gen 2 Rail Mount Compensator - Black Specifications: Length: 4 1/4 inches Height: 2 1/2 inches Weight: 5 oz Torque: 3nM / 26 inch-lbs Should NOT be used with a Threaded Barrel It is recommended by the manufacturer to use 124+...HKP-19170$169.95 -
Sale
HKP HK VP9 Gen 2 V1 Rail Mount Compensator - Black - BLEMISHED
HKP HK Parts
Now: $96.95Was: $169.95HKP HK VP9 Gen 2 V1 Rail Mount Compensator - Black - BLEMISHED These compensators are being sold as blemished due to their finish. The Cerakote came out more matte than satin for this batch. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND...HKP-19000-BNow: $96.95Was: $169.95 -
Magpul M-LOK 9 Slot Rail Section
Magpul
$24.95Magpul M-LOK 9 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-19570$24.95 -
PTR AR Stock Adapter For HK Firearms
PTR
$99.95AR15 to HK 90 Series Stock Adapter For AR15 &M4 Style Stocks, Braces For use on any commercial, Mil-spec or pistol AR15/M16/M4 stock, brace & buffer tube of your choice. Perfect for your HK rifle, pistol or SBR build. With our M4 adapter, you can...HKP-16550$99.95 -
Zenith - No Evil MP5 Magazine
Zenith
$43.95Zenith - No Evil MP5 Magazine The infamous three wise monkeys laser-etched into a Zenith magazine. Hear no evil, see no evil, speak no evil. Limited run so get them while you can! Application of oil is recommended depending on climate...HKP-20842$43.95 -
H&K 91/G3 (7.62x51/.308) Locking Piece - 45 Degree
H&K Heckler & Koch
$29.95New Old Stock German HK Locking Piece For G3, 91, & PTR This is the factory-correct 45-degree locking piece for HK 91/G3 & PTR .308 full-length firearms. All steel construction is new in sealed wrapping.HKP-00499$29.95 -
H&K G36/MR556/MR762/416 (5.56/.223) & (7.62x51/.308) Extractor Spring
H&K Heckler & Koch
$8.95HK German Extractor Spring A must-have replacement wear part and a great item to have on hand. Compatible With: HK G36 HK G36K HK G36C HK SL8 HK 416 HK MR556HKP-00288$8.95 -
H&K HK 416/MR556 Mil-Spec Factory German E2 Rear Stock - Black
H&K Heckler & Koch
$199.95HK 416, MR556 Factory German E2 Rear Stock The HKE2 Buttstock fits MILSPEC buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed. Features: Ergonomic cheek weld for improved firing position Two...HKP-01913$199.95 -
H&K HK MR556/MR762/416/417 Tactical Sling - Black
H&K Heckler & Koch
$76.95H&K HK MR556, MR762, 416, & 417 Tactical Sling - Black OEM HK German part. The tool is built into the HK sling hook. For the MR556 model, a sling adapter will be needed for the front attachment point as the MR556 lacks the ambi sling loop on the...HKP-00028$76.95