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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HK MP5K, SP89, SP5K Cocking Tube Support - 9mm
HKP HK Parts
$49.95MP5K, SP89 & SP5K Cocking Tube Support Complete - USA The cocking tube support is the same for the HK SP-89, MP5K & SP5K. Each support is complete with detent and spring installed. These can also be used to replace the plastic or cheaply made...HKP-18103$49.95 -
Ergo M-LOK Handstop
Ergo
$54.95M-LOK Hand Stop/Barricade Stop in Black Features: Aggressive textured front for enhanced traction on barricades and obstacles Low profile base also functions as a comfortable hand stop Black anodized 6061-T6 aluminum Fits all M-LOK style forearms or...HKP-17852$54.95 -
HK91, G3, PTR Magazine - 20 Round - Date Coded - Like New
H&K Heckler & Koch
$34.95Heckler and Koch HK91, G3, PTR 20 Round Date Coded Magazine - Like New Factory German HK 20 round magazine for HK91, G3, and PTR91 pattern rifles. Offered in IB or IC date codes for those seeking original German date coded magazines in like new...HKP-22560-M$34.95 -
HK G36 Picatinny Adapter - Gen 2
HKP HK Parts
$139.95HKP HK G36 Picatinny Adapter - Gen 2 Elevate your G36 with the Gen 2 Picatinny adapter, designed to effortlessly attach any 1913-style stock or brace. Our refined design guarantees a secure attachment for stocks and braces and delivers an adjustable...HKP-21866$139.95 -
On Sale
KCI Glock 17/19 Dual Magazine Pouch
Now: $8.95Was: $34.95KCI Glock 17/19 Dual Magazine Pouch Perfect for keeping 2 double stack Glock mags within reach. Factory Glock double stack 15 and 17 round double stack magazines pictured for reference.HKP-21475Now: $8.95Was: $34.95 -
HK MP5K, SP5K, SP89 Side Folding Brace Adapter
HKP HK Parts
$119.95HKP MP5K/SP5K/SP89 Side Folding Brace Adapter The HK Parts folding brace adapter is the best option to attach the SB tactical Folding brace or any brace that utilizes the same mounting system. Hardware included for a quick and easy installation. QD...HKP-20798-M$119.95 -
HK MP5 Brace With Direct Fit Adapter
HKP HK Parts / SB Tactical
$299.95HK MP5 Brace With Direct Fit Adapter Each brace comes assembled ready to install no assembly required. This complete brace will come assembled with our own HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment point. Made...HKP-20214$299.95 -
HK P30, VP9 Magazine Extension Kit - +10
HKP HK Parts
$64.95HKP + 10 HK P30, VP9 Magazine Extension Kit HK Parts +10 magazine extension kit adds 10 additional rounds to the HK VP9/P30 magazine with the simple swap of the floor plate and highly reliable mag spring. This is an easy 2 minute...HKP-19455-M$64.95 -
On Sale
HK VP9, VP9SK, VP40 Hex Button Quick Detach Slide Plate
HKP HK Parts
Now: $26.85Was: $34.95HKP HK VP9, VP9SK, VP40 Hex Button Quick Detach Slide Plate The HK Parts Quick Detach Slide Plate for the HK VP series of pistols is ideal for those that want the ability of quickly and efficiently access the firing pin, sleeve assembly. The quick...HKP-18111-MNow: $26.85Was: $34.95 -
HK VP9, VP40 Grip Panel Left Side - Large
H&K Heckler & Koch
$24.95Heckler and Koch Grip Panel in multiple colors and sizes for the left side of the HK VP9 and HK VP40 grips. Large left grip shell for HK VP9 and HK VP40 pistols. New HK German manufactured. Heckler and Koch's interchangeable panels are the...HKP-16808$24.95 -
HK USP Tactical Barrel - .40 S&W - 4.86" - Threaded 14.5x1 LH
RCM
$225.00RCM HK USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest replacement barrel for the HK USP full-size .40...HKP-17745$225.00 -
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. Designed specifically for the HK Mark 23 .45 pistol, it...HKP-17622$250.00