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 -
HK MP5, MP5K 9mm Ambidextrous 0,1 Trigger Pack
HKP HK Parts
$479.95HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an...HKP-17230$479.95 -
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 -
HK MP5, HK94, G3, HK91, HK3, HK53, HK93 Trigger Housing - Full Auto SEF
H&K Heckler & Koch
$299.95H&K Full Auto Trigger Box - SEF - MP5/94/G3/91/93/53/33 This genuine HK trigger box can house either the full auto SEF trigger pack internals or be converted to the semi-auto configuration. Not for use with ambidextrous trigger packs, selectors, or...HKP-02178$299.95 -
Out Of StockOn Sale
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote Tungsten -BLEMISHED
MKE
Now: $43.95Was: $64.95HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote Tungsten -BLEMISHED INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. These MKE...HKP-21341-TU-BNow: $43.95Was: $64.95 -
On Sale
B&T GHM9 SD Handguard - Incomplete - BLEMISHED
B&T Brugger & Thomet
Now: $188.95Was: $255.00B&T GHM9 SD Handguard - Incomplete - BLEMISHED MISSING BOTTOM PIECE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Upgrade your GHM9 SD with this...HKP-99442Now: $188.95Was: $255.00 -
On Sale
HK91, G3 Magazine - 20 Round - LEO Laser Marked - Parkerized - BLEMISHED
H&K Heckler & Koch
Now: $41.95Was: $59.95Heckler and Koch 20 Round Rare LEO Laser Marked Steel Magazine for HK91 and HK G3 BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED POOR AND UNFINISHED LASER MARKING COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT...HKP-19333-BNow: $41.95Was: $59.95 -
HK21 FMP Ultimate Build Kit- Matching Numbers - Complete RCM Barrel
FMP HK CONTRACT
$3,748.95HK21 Complete Build Kit- Matching Numbers HK Parts brings you another exhaustive parts kit. Our numbers-matching Ultimate HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. Kit includes...HKP-22539$3,748.95 -
On Sale
HK MP5 Wide Handguard - Pressure Pad - 16-Slot Rail - Rare - USED
Other
Now: $324.95Was: $449.95Rare Defiance HK MP5 Wide Handguard - Pressure Pad - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Swiss-made rare MP5 handguard with pressure pad and...HKP-99435Now: $324.95Was: $449.95 -
HK MP5K, SP5K Trigger Group - Single Stage - SSTG
Magpul
$669.95SSTG Magpul trigger group The Single Stage Trigger Group is a blend between the past and future. The trigger pack begins life as a factory German trigger pack before being professionally converted into a semi-auto trigger pack. After the conversion, each...HKP-22522-M$669.95 -
Out Of StockOn Sale
HK MP5, MP5K Optic Mount - Raised - Picatinny - Black - BLEMISHED
HKP HK Parts
Now: $117.95Was: $164.95HK MP5, MP5K Optic Mount - Raised - Picatinny - Black - BLEMISHED DINGS - INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HKP Raised...HKP-22219-BL-BNow: $117.95Was: $164.95