Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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HK417, MR762 Gas Block Pin
H&K Heckler & Koch
$7.95H&K HK MR762/417 Gas Block Pin This is the retaining pin for an HK MR762 gas block. A must have as HK says you have to use new pins once they are removed. Compatible With: HK MR762HKP-16596$7.95 -
HK USP Tactical Barrel - .40 S&W - 4.86" - Threaded 9/16x24
RCM
$225.00RCM HK USP .40 S&W Tactical Barrel - Threaded 9/16x24 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the best...HKP-17744$225.00 -
HK USPC .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
$105.99Recoil Spring Guide Rod Assembly Complete For The HK USP Compact 40 Cal & .357 SIG New HK German factory part. This is a great spare or replacement item to have on hand. Compatible With:HKP-01479$105.99 -
Out Of Stock
HK Mark 23 Barrel - .45 ACP - 5.38" - Non-Threaded
RCM
$250.00RCM HK Mark 23 .45 ACP Flush Fit Barrel - Non-Threaded This custom-made barrel is expertly crafted from ordnance-grade steel, heat-treated, and finished with a highly desirable nitride coating...HKP-17622$250.00 -
On Sale
Glock 23 13-Round .40 S&W Magazine
Glock
Now: $14.96Was: $29.95Glock 23 .40 S&W - 13 Round Magazine These are factory-original, drop-free magazines for your Glock handgun. Glock magazines have a hardened steel insert encased in high-tech polymer. This polymer...HKP-00014Now: $14.96Was: $29.95 -
HK MP5K, SP89, SP5K Trunnion - 9mm - RS
RCM
$69.95MP5K Reverse Stretch Trunnion US-made to exact factory HK specifications for the HK MP5K, SP89 9mm builds. There is a difference between the MP5K and the MP5 trunnion. This offering is the correct...HKP-02242$69.95 -
HK MP5, HK90 Series Front Sight Post - Night Sight
XS Sights
$92.99XS Sights Night Sight Front Sight Post with the Standard Dot Size This part works wonders in low-light situations and tactical environments. This is simply the best front-sight post you can get for...HKP-02066$92.99 -
HK MP5, MP5K 9mm Ambidextrous 0,1 Trigger Pack - Match - Semi-Auto
HKP HK Parts
$579.95HKP/H&K MP5/K 9mm 2 Position 0,1 Ambidextrous Match Trigger Pack We have one of the best HK gunsmiths in the country that is able to take hand picked German HK F/A trigger packs and modify them to...HKP-18424$579.95 -
Out Of Stock
HK MP5, SP5, HK94 Optic Mount - Armasuisse Version
B&T Brugger & Thomet
$219.95B&T MP5 Mounting Rail, Armasuisse Version Compatible With: HK MP5, SP5 HK 94HKP-16864$219.95 -
$135.95 -
HK416, MR556 Magazine Catch - Ambi
H&K Heckler & Koch
$104.95Heckler and Koch Ambidextrous Magazine Catch for HK416 and HK MR556 Factory HK ambi magazine catch, release.HKP-22289$104.95 -
HK416, MR556 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$26.95H&K HK416, MR556 A4 Front Takedown Pin The HK416 front takedown pin is a German-made component designed to securely fasten the upper and lower receivers. Precision-machined for a proper fit, it...HKP-21862$26.95