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 VP9, VP9L Optic Plate Cover - Filler Plate
HKP HK Parts
Now: $23.95Was: $29.95HK VP9 & VP9L Optic Ready Slide Filler Plate - Aluminum Each plate is CNC machined from a solid billet of aircraft-grade aluminum and anodized black. Ultra lightweight and contoured to match the profile and styling of the HK VP series slide. Made in...HKP-21077-MNow: $23.95Was: $29.95 -
HK USP Magazine Floorplate - .45 ACP - 10 Round - Standard
H&K Heckler & Koch
$10.95H&K 10 Round HK USP .45 ACP Standard Floor Plate Perfect for concealed carry as the flat floor plate has a lower profile. Compatible With: HK USP .45 Magazine - 10 round HK USP .45 Tactical Magazine - 10 roundHKP-01194$10.95 -
HK VP9A1 K Magazine - 10 Round
H&K Heckler & Koch
$59.95HK VP9A1 K Magazine - 10 Round Factory 10-round magazine for the VP9A1 K. **HK incorrectly marked packaging with "VP9SK", but the magazine is correct. Features: 10-round capacity for restricted-capacity compliance Durable steel body with polymer...HKP-22301$59.95 -
Out Of StockOn Sale
HK UMP Barrel - .45 ACP - 7.87" - Threaded .578x28
HDPS
Now: $9.99Was: $349.95HK UMP .45 ACP Barrel - Threaded .578x28 HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 ACP barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a...HKP-20872Now: $9.99Was: $349.95 -
On Sale
HK45 Thread Protector - 16x1 LH - Titanium
Now: $19.95Was: $24.95HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for safeguarding your threaded barrels and exposed threads, it...HKP-17942Now: $19.95Was: $24.95 -
On Sale
HK USP Flat Tracker Takedown Lever - Volker Precision
Volker Precision
Now: $100.95Was: $112.95HK USP Full Size Flat Tracker - Volker Precision Volker Precision flat tracker for full size USP models in all calibers. Available exclusively at HK Parts Compatible With: HK USP9, USP40, USP45HKP-22447Now: $100.95Was: $112.95 -
Out Of Stock
HK P30SK Pistol Bench Mat
HKP HK Parts
$13.95HK P30SK Bench MatPerfect for the HK P30SK 9mm & .40 Cal Models This isn't your ordinary gun cleaning mat! Show your pride for your firearm while using this high quality neoprene rubber backed and cloth top gun cleaning mat to protect your gun bench,...HKP-18090$13.95 -
On Sale
HK G36 Poster
H&K Heckler & Koch
Now: $4.95Was: $14.95H&K HK G36 Poster Limited edition print no longer in production. Shows all models of the famous G36 battle rifle. Available while supplies last! Specifications: Height - 24" Width - 18"HKP-16688Now: $4.95Was: $14.95 -
HK MP5, G36, UMP Sling - Factory - Ambidextrous - Black
H&K Heckler & Koch
$64.95Heckler and Koch Ambidextrous 25mm Wide Sling for HK MP5, G36, UMP - Black Ambidextrous 25mm wide black sling designed for HK platforms equipped with dual sling clip attachment points. Allows left or right side mounting similar to the factory HK green...HKP-00350$64.95 -
On Sale
HK MP5, HK94 Grip Adapter - K Style
E&L MFG
Now: $39.95Was: $49.95HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.HKP-00175Now: $39.95Was: $49.95 -
On Sale
Uzi Sling - Used
Other
Now: $20.95Was: $24.95Uzi Sling - Used Original IMI sling used complete with steel buckle, two leather loops and steel tip keepers. Once they're gone, they're gone for good. Compatible With: Action Arms Uzi Micro & Mini SMG Model A&B carbine Semi-Auto Mini Carbine...HKP-21562Now: $20.95Was: $24.95 -
HK416, MR556 Gas Block - Slimline - Vented
H&K Heckler & Koch
$145.95Heckler and Koch Low Profile Complete Gas Block for HK MR556, HK416, HK German Factory slimline, low-profile gas block for the HK416 and HK MR556. This is the factory-correct gas block found on the MR556. Correct gas block to use with...HKP-02660$145.95