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 P2000SK Backstrap - Medium - Black
H&K Heckler & Koch
$25.95H&K P2000SK Backstrap - Medium - Black New HK German medium backstrap without lockout safety for HK P2000SK models. Compatible With: P2000SKHKP-02491$25.95 -
On Sale
HKP .40 S&W 4 Prong Flash Hider - Threaded 14.5x1 LH
USA
Now: $29.95Was: $79.95HKP .40 S&W 4 Prong Flash Hider - Threaded 14.5x1 LH THIS IS A CLOSEOUT PRODUCT DUE TO A HARMONIC (TUNING FORK EFFECT) PRESENT WHEN SHOOTING. THE PART IS ENTIRELY FUNCTIONAL AND IS SOLD AS-IS, RETURNS ARE NOT ACCEPTED. For use on all HK German ...HKP-01986Now: $29.95Was: $79.95 -
HK45 Compact, USP Compact Recoil Spring Guide Rod - Stripped
H&K Heckler & Koch
$79.95Heckler and Koch Stripped Recoil Spring Guide Rod for HK45 Compact, USP Compact German-made steel recoil spring guide rod for the HK45C and USP Compact .45 ACP. This is the stripped guide rod only and does not include the recoil spring. Installs beneath...HKP-02245$79.95 -
Out Of Stock
HK USP, Mark 23 Magazine Body - .45 ACP - 12 Round
H&K Heckler & Koch
$0.00H&K 12 Round HK USP/Mark 23 .45 ACP Magazine Body New HK German 12 round all steel magazine housing. Compatible With: HK USP .45 HK Mark 23HKP-16646$0.00 -
Out Of Stock
HK USP Barrel - .45 ACP - 6.02" - Match
H&K Heckler & Koch
$0.00H&K HK USP .45 ACP Barrel - Match The real deal factory HK Match barrel. This barrel will fit all HK USP .45 full size models. If you want a longer barrel for your HK USP 45 or USP 45 Tactical this is a great option for an extended length or for use...HKP-17508$0.00 -
Out Of Stock
HK USP Firing Pin - Old Style - Titanium
HKP HK Parts
$59.95HKP HK USP Older Style Titanium Firing Pin HK stopped making or supporting the older/original style USP firing pin. In an effort, to support all of HK's customers we now offer our "enhanced" titanium firing pin to use in your original USP that has not...HKP-01287$59.95 -
Out Of Stock
HK USP Tactical Barrel - 9mm- Threaded 13.5x1 LH
H&K Heckler & Koch
$0.00Heckler and Koch HK USP 9mm Tactical Barrel - Threaded 13.5x1 LH This barrel is a drop-in replacement barrel for standard full-size USP 9mm Pistols. Cold hammer forged, polygonal rifled, and made in Germany. Specifications: Threaded 13.5x1 LH Overall...HKP-00797$0.00 -
Out Of Stock
HK USP New Style Hammer Strut
H&K Heckler & Koch
$0.00HK USP New Style Hammer Strut Compatible With: HK USP 9mm Full Size HK USP 40 S&W Full SizeHKP-01661$0.00 -
HK USP Old Style Incomplete Hammer
H&K Heckler & Koch
$59.95HK USP Full Size Incomplete Hammer - Variant 1-4, 9, & 10 This hammer is the same as the complete hammer, only missing the small parts in the hammer. All metal and no rubber, as found on early USP models. Compatible With: HK USP 9mm HK USP 40...HKP-01631$59.95 -
Out Of Stock
HK USP V5, V6, V7 Incomplete Bobbed Hammer
H&K Heckler & Koch
$0.00HK USP Bobbed Hammer - Variants 5, 6, & 7 This is an incomplete hammer. That means no springs or pins are included with this item. Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACPHKP-01626$0.00 -
Out Of Stock
HK USP Compact, P2000 Firing Pin - 9mm/ .40 S&W - Titanium
HKP HK Parts
$49.95H&K HK USPC/P2000 9mm/.40 S&W Titanium Firing Pin Latest generation current design USPC/P2000/P2000SK Titanium firing pin. A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in...HKP-17810$49.95 -
HK G36 Brass Catcher - OD Green
H&K Heckler & Koch
$567.95Heckler and Koch HK G36 Brass Catcher - OD Green Genuine HK brass catcher for G36 platforms. This brass catcher is equipped with a quick-change, integral magwell for a secure fit. Spent brass capacity is approximately 60 cases. Compatible...HKP-18490$567.95