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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Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 15 Round - 9mm
Mora Arms
$29.95Mora Arms HK MP5, MP5K Magazine - 15 Round 15-round curved steel magazine for MP5 platforms. Compatible With: MP5, SP5 MP5K, SP5K SP89, HK94 Custom HK 9mm builds & clonesHKP-22352$29.95 -
Out Of Stock
Thread Protector - 9mm - 13.5x1 LH - US
HKP HK Parts
$19.95HKP 9mm Thread Protector - Threaded 13.5x1 LH This threaded barrel protector fits all HK 9mm threaded barrels that are 13.5x1 metric LH twist. Specifications: Overall Length .45" Outside Diameter .62" Threaded 13.5x1 LH Compatible With: HK VP9,...HKP-22324$19.95 -
On Sale
Muzzle Device Shim Kit - 1/2x28
Rugged Suppressors
Now: $7.95Was: $9.95Rugged Suppressors Muzzle Device Shim Kit - 1/2x28 This kit includes 3 varying thickness shims to time your muzzle device to your desired orientation. Compatible With: HK MP5/K HK 416/MR556/MR223 HK G36/SL8 B&T TP9/MP9 B&T...HKP-21455Now: $7.95Was: $9.95 -
On Sale
HK91, G3, PTR PDW Stock Adapter - AR-15 Style
AIM
Now: $45.95Was: $54.99HK91, G3, PTR PDW Stock Adapter - AR-15 Style The Aim Sports Inc HK to AR15 stock adapter for AR15 stocks. Works with any Mil-spec buffer tube and castle nut to use any Mil-spec AR15/M16 stock of your choice on your HK rifle, SBR, or pistol. With our...HKP-20891Now: $45.95Was: $54.99 -
On Sale
Glock 17 Magwell - Gen 4
HKP HK Parts
Now: $9.95Was: $47.96HKP Glock 17 Gen 4 Magwell The perfect addition to your Glock 17 firearm, the HK Parts magwell will help keep the users hand in place while shooting. Installation is simple with an allen wrench, no gunsmithing required. Made in the USA. Ultra lightweight...HKP-19141Now: $9.95Was: $47.96 -
On Sale
HK P30L Tactical Barrel - 9mm - 5.06" - Threaded 13.5x1 LH
RCM
Now: $190.95Was: $225.00RCM HK P30L 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK P30L 9mm pistol,...HKP-16258Now: $190.95Was: $225.00 -
On Sale
HK45C Grip Wrap - Granulate
Talon Grip
Now: $16.95Was: $19.99TALON Grip - HK45C - Granulate Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and easy. The pistol...HKP-20259Now: $16.95Was: $19.99 -
HK P30, P30L, P2000 Catch
$53.95Catch - HK P30, P30L, P2000 New HK German Catch Assembly for all P Series of pistols. Compatible With: HK P30 HK P30L HK P30SK HK P2000 HK P2000SK Calibers P2000 - 9mm P2000 - .40 S&W P2000 - .357 SIG Please note: This is also the latch needed...HKP-15434$53.95 -
On Sale
HK91, G3 Optic Mount - Low Profile - Short Version
B&T Brugger & Thomet
Now: $122.95Was: $144.95B&T Mounting Rail NAR Low Profile Mount For HK G3, 91, PTR, Short Version Compatible With: HK G3 HK91 PTR91 Specifications: Overall length: 3.25"HKP-16869Now: $122.95Was: $144.95 -
Out Of Stock
HK Semi Auto Shelf, Hanger Block For Receiver
HKP HK Parts
$13.95HK Semi Auto Shelf Weldment, Hanger Block Weldment HK Semi Auto Shelf, Hanger Block to HK's factory specifications for c/p trigger housings. Weld on shelf that is the needed receiver block that welds to the rearward portion of the magwell to allow the...HKP-17572$13.95 -
Out Of Stock
HK21 FMP Complete Build Kit- Non Matching Numbers
FMP HK CONTRACT
$3,124.97HK21 Complete Build Kit- Non Matching Numbers HK Parts brings you another exhaustive parts kit. Our HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. We also included our own hanger with a...HKP-21626$3,124.97 -
On Sale
HK VP9, P30 Enhanced Magazine Extension Kit +5
HKP HK Parts
$51.95 - $64.95Magazine Extension Kit +5 - HK VP9, HK P30 Latest and greatest VP9/P30 Enhanced magazine extension. Our new design was made to give our current magazine extension a more aggressive look and a overall better functionality. With the added features all...HKP-21404-M$51.95 - $64.95