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 MP5K, SP89 Trigger Group - SEF - Contoured - Clipped and Pinned
H&K Heckler & Koch
$0.00New HK German SP89, MP5K Semi Auto - Clipped & Pinned SEF Trigger Group Each unit includes the professionally converted SEF clipped and pinned housing and semi-auto-only trigger pack. All trigger groups include a new 3rd-generation 9mm ejector lever...HKP-01691$0.00 -
HK MP5F Parts Kit - A2 Buttstock and Navy Trigger 3 Pos
H&K Heckler & Koch
$2,695.95HK MP5F Parts Kit - 3 Pos Navy Trigger - A2 Stock This kit is built from original German components and includes the upgraded full-auto MP5F bolt group assembly and cold hammer forged 3-lug barrel. The MP5F configuration is known for its reinforced...HKP-01538$2,695.95 -
On Sale
HK MP5 Parts Kit - .40 S&W - Pistol Build
HKP HK Parts
Now: $1,422.95Was: $1,674.95MP5 .40 Pistol Build Kit Complete German & USA Made Parts MP5 .40 parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A) rifle, or SBR...HKP-18405Now: $1,422.95Was: $1,674.95 -
HK MP5 F Cocking Tube Support - 9mm, 10mm, .40 S&W
H&K Heckler & Koch
$299.95HK German MP5 F & 40/10 Cocking Tube Support This is the factory correct MP5 F or MP5 40/10 newer style cocking tube support. Compatible With: MP5 40 MP5 10mm True MP5 F models Custom HK builds and clones with the proper F partsHKP-00097$299.95 -
On Sale
HK33 A2 Parts Kit
H&K Heckler & Koch
Now: $2,897.95Was: $3,489.95HK33 A2 Parts Kit - Used Surplus (Receiver Not Included) Genuine German HK33 A2 parts kit professionally de-milled in accordance with BATF specifications. This kit does not include a receiver. These kits consist of German-manufactured HK components and...HKP-00783Now: $2,897.95Was: $3,489.95 -
On Sale
PTR91 Extractor - BLEMISHED
PTR
Now: $9.95Was: $12.95PTR Extractor for PTR91 - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. PTR extractor for PTR91 rifles, designed as a replacement extractor for proper...HKP-99457Now: $9.95Was: $12.95 -
Out Of StockOn Sale
HK VP9, VP40 Magazine Release - Enhanced - Gen 2 Red - BLEMISHED
HKP HK Parts
Now: $37.95Was: $49.95HK VP9, VP40 Magazine Release - Enhanced - Gen 2 Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The oversized magazine release increases the...HKP-21098-RE-BNow: $37.95Was: $49.95 -
HK German Sling - 3 Point - Like New
H&K Heckler & Koch
$73.95Heckler and Koch HK Platform German Sling 3 Point Three-point sling designed for HK rifles and carbines. Provides secure weapon retention and hands-free carrying. Compatible With: - HK G3, HK91, HK93 - HK33, HK33KA, HK53 - In-spec clones and custom...HKP-22787$73.95 -
On Sale
HK VP9 OR Front and Rear Sight Set - Green Fiber Optic - Standard Height
XS Sights
Now: $39.95Was: $47.95XS Sights Front and Green Rear Fiber Optic Sight Set for HK VP9 Optics Ready - Standard Height XS Sights front and rear fiber optic sight set for HK VP9 optics-ready pistols in standard height. Designed for fast sight acquisition and a clean sight...HKP-22673Now: $39.95Was: $47.95 -
On Sale
HK MP5, AP5 Front Sight Tower - UNFINISHED - BLEMISHED
MKE
Now: $22.46Was: $49.95MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED SOLD INDIVIDUALLY - UNFINISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The front sight tower is a...HKP-22220-BNow: $22.46Was: $49.95 -
On Sale
A3 Tactical Picatinny Skelestock
JMK
$304.95 - $317.95A3 Tactical Picatinny Skelestock The A3 Tactical Skelestocks are fixed-length folding skeleton stocks meticulously machined from 6061 aluminum. An ambidextrous hinge enables it to fold either to the right or left, depending on the mounting...HKP-22410-M$304.95 - $317.95 -
On Sale
HK416, MR556 CQC Pistol Grip - Walnut
JMK
$62.95 - $70.95JMK HK416, MR556 CQC pistol grip - Walnut The CQC pistol grip by JMK is crafted from CNC-machined black walnut. After machining, the grip is dyed to a uniform color and finished with a catalyzed satin seal. These grips are compatible with any firearm...HKP-22401-M$62.95 - $70.95