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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HK45, HK45 Compact, USP, USPC Sear Roll Pin
H&K Heckler & Koch
$5.95Sear Roll Pin HK USP 9mm .40 S&W .45 ACP HK USP Compact 9mm .40 S&W .357 SIG .45 ACP HK45 HK45 CompactHKP-01815$5.95 -
HK91, G3 Trigger Pack, Complete - SEF Full Auto - Used Surplus
H&K Heckler & Koch
$299.95Heckler and Koch SEF Complete Full Auto Trigger Pack - USED for HK G3 and HK91 7.62x51 / .308 A Heckler and Koch genuine part. The best price anywhere for a complete surplus German trigger pack. This offering is a full auto HK SEF .308 trigger pack...HKP-00522$299.95 -
Out Of Stock
HK MP5K, SP5K, SP89 Handguard with Handstop
H&K Heckler & Koch
$69.95HK SP5K Handguard Factory over-the-muzzle forearm for the MP5K platform. Compatible With: HK MP5K, SP5K, SP89 In spec. clones and custom buildsHKP-18063$69.95 -
On Sale
HK VP9K Magazine, Complete - 20 Round
HKP HK Parts
Now: $62.95Was: $78.95HKP HK Parts 20 Round 9mm Complete Magazine for HK VP9A1 K This fully assembled 20-round magazine for the HK VP9A1 K combines a factory German 15-round magazine body with the HK Parts +5 magazine extension. Perfect for competitive shooters or anyone...HKP-21974-MNow: $62.95Was: $78.95 -
On Sale
HK VP9 Optic Plate #11 - Sig Romeo Zero - Red Dot Pistol Mount
HKP HK Parts
Now: $39.95Was: $49.95HK VP9 Series Optics Ready #11 - Sig Romeo Zero - Optic Mount - Steel The finest all steel mounting solution for your HK VP9 Series Opitc Ready model. New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of...HKP-20029Now: $39.95Was: $49.95 -
On Sale
FS1913 Stabilizing Brace - Folding
SB Tactical
Now: $207.95Was: $260.99SB Tactical FS1913 Folding Pistol Stabilizing Brace A low-profile, left side-folding, strut design compatible with all platforms utilizing an M1913 interface at the rear of the receiver. The FS1913 is a complete assembly offering pull-through opening and...HKP-19132Now: $207.95Was: $260.99 -
On Sale
HKP .40 S&W Vented Micro Comp - Threaded 14.5x1 LH
HKP HK Parts
Now: $23.95Was: $29.95HKP .40 S&W Vented Micro Comp - Threaded 14.5x1 LH The HK Parts Micro Comp & Thread Protector is designed to be lightweight, and 100% functional as both a compensator and thread protector. The HK Parts Micro Comp easily attaches to the end...HKP-19955Now: $23.95Was: $29.95 -
On Sale
HK VP9, P30 Magazine Extension Kit - +7
HKP HK Parts
Now: $43.95Was: $54.95HKP +7 HK VP9/P30 Magazine Extension Kit The HK Parts +7 magazine extension kit adds 7 additional rounds to the HK VP9/P30 magazine with the simple swap of the floor plate & mag spring. Each kit includes the +7 extension and an enhanced spring. This...HKP-19456-MNow: $43.95Was: $54.95 -
On Sale
HK MP5K, SP89, SP5K Binary Trigger Group - 9mm
Magpul / FA Franklin Armory
$667.95 - $689.95Magpul SL HK MP5K - Binary Trigger Group Perfect for those seeking a binary option combined with the comfort of a Magpul housing. We've paired a Magpul SL housing with our compatible binary selector levers and completed it with a Franklin Armory trigger...HKP-21408-M$667.95 - $689.95 -
On Sale
HK MP5K Dual Folding Stabilizer with Adapter
HKP HK Parts / Strike Industries
$271.95 - $299.95Strike Industries Dual Folding Stabilizer with HKP MP5K Adapter The Strike Industries Dual Folding Stabilizer paired with the HKP MP5K picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...HKP-21386-M$271.95 - $299.95 -
On Sale
HK SP5K Grip Module - SL
Magpul
$186.95 - $203.95Magpul HK SP5K SL Grip Module HK Parts brings a solution for those wanting to upgrade to the Magpul SL grip. This is a perfect option for those wanting improved ergonomics and a modern aesthetic. The pictograms are hand-painted to match the factory...HKP-20945-M$186.95 - $203.95 -
HK Sling Hardware
H&K Heckler & Koch
$4.95HK German Sling Hardware New Old Stock Slider and sling tension adjuster for HK style slings and other sling applications. Steel manufacture.HKP-19367$4.95