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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On Sale
HK MP5, MP5K Optic Mount
HKP HK Parts
Now: $95.95Was: $119.95HKP HK MP5 / MP5K Universal Optic Mount The HKP universal optic mount incorporates the VP9 optic footprint, allowing the user to install any VP9 compatible optic on their MP5 with a German or HKP VP9 optic plate. Swap optics like Trijicon,...HKP-20967-MNow: $95.95Was: $119.95 -
On Sale
HK MP5, SP5K - Folding Stock Section Only
B&T Brugger & Thomet
Now: $125.95Was: $139.95B&T MP5K & MP5 - Folding Stock Section Only Ideal for those moving from the SB Tactical SBT5 or SBT5K side folding brace to NFA/SBR status as these braces already include the B&T side-folding stock adapter backplate. Specifications: Requires...HKP-18246Now: $125.95Was: $139.95 -
On Sale
HK MP5, SP5 Folding Brace - Skeletonized
SB Tactical
Now: $134.95Was: $149.95SB Tactical MP5 & SP5 Folding Brace - Skeletonized Features: Each brace comes assembled ready to install no assembly required Made in the USA B&T inspired design & styling QD Sling Attachment Fully adjustable nylon stabilizing strap 10.5" in...HKP-21397Now: $134.95Was: $149.95 -
HK USC (.45 ACP) 10 Round Magazine
H&K Heckler & Koch
$74.95HK German Factory 10 Round USC .45 Magazine This is the only magazine that HK offers for HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible with all HK USC Carbines.HKP-00811$74.95 -
On Sale
HK MP5 Magazine Pouch - Single - 9mm
Comp-Tac
Now: $37.95Was: $44.95Comp-Tac HK MP5 9mm Single Magazine Pouch The single magazine pouch PLM is an all Kydex magazine pouch which gives a smooth friction free surface perfect for a quick reload for your HK MP5. The PLM mount allows for being securely hooked on a variety of...HKP-20099Now: $37.95Was: $44.95 -
On Sale
HK VP9 Optic Plate #12 - Aimpoint ACRO P-1, P-2 - Red Dot Pistol Mount - Steel
HKP HK Parts
Now: $39.95Was: $49.95HK VP9 Series Optics Ready #12 - Aimpoint ACRO - Optic Mount - Steel Each VP9 optic plate is CNC machined from a solid billet of ordnance grade steel, deburred, tumbled and Cerakoted for the ultimate in durability and appearance. Each unit comes with 2...HKP-20030Now: $39.95Was: $49.95 -
HK Parts Decal Sticker - Classic Style
HKP HK Parts
$1.50HK Parts Decal Sticker - Classic Style Perfect addition to your safe, vehicle, motorcycle, boat, or just about any place. Available in black and white.HKP-18652$1.50 -
On Sale
HK MP5, MP5K Soft Case - Load Out - 28"
HKP HK Parts
Now: $63.95Was: $79.95HK Parts Load Out Soft Case 28" long for storing your HK MP5 The HK Parts MP5 Load Out soft case was designed with versatility in mind. The case can be used to transport 1 or 2 MP5 platform firearms and up to 9 magazines securely in the included...HKP-21670Now: $63.95Was: $79.95 -
HK91, G3 Rear Sight - Surplus
H&K Heckler & Koch
$14.95HK German G3, 91, PTR Rear Sight Assembly Good - Very Good HK German factory sight. We offer the finest used German HK sights at the BEST price in the country. Each German HK used sight was hand selected & picked from to be the finest examples of all...HKP-18092$14.95 -
HK91, G3 Cocking Tube
H&K Heckler & Koch
$134.95HK German G3, 91, PTR Cocking Tube This is the factory-new part straight from HK Germany, and it is heat treated with the proper ribbed cocking tube extrusion. No longer in production and not POF or other low-quality production. HK G3 HK 91 PTR-91...HKP-01041$134.95 -
On Sale
HK MP5, AP5 Handguard
MKE
Now: $35.95Was: $39.95MKE HK MP5 AP5 Handguard The AP5 handguard is designed to fit the MKE AP5 and HK MP5 firearms. This handguard provides a secure grip and a factory-correct appearance. It provides a reliable and durable option for replacing or upgrading an MP5-style...HKP-21810Now: $35.95Was: $39.95 -
HK MP5K Vertical Foregrip - M-LOK Cantilever Rail
H&K Heckler & Koch
$128.95H&K / Magpul HK MP5K VFG w/Magpul Cantilever M-LOK Rail Factory HK VFG for the MP5K platform adapted by HKP to feature a Magpul M-LOK polymer cantilever rail. The VFG features an M-LOK mounting slot on both sides to allow the mounting of...HKP-20955$128.95