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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HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm
H&K Heckler & Koch
$29.95 - $32.95Heckler and Koch MR762 A4 Gas Vent Screws German gas vent screw for MR762 A4 gas block. Specifications:HKP-21954-M$29.95 - $32.95 -
Arm Bar and Stock or Brace Adapter - Picatinny 9"
JMAC Customs
$272.85JMAC Universal Picatinny 9" Arm Bar with Brace/Stock Adapter (A)rm(B)ar(9)inch(R)ise + AB-BA Brace Adapter + our 1913 Folding Mech (not assembled) Features: Modular Design - Brace/Stock with...HKP-21248$272.85 -
HK MP5 Receiver Flat - 9mm
HKP HK Parts
$189.95HKP HK MP5 9mm Receiver Flat New MP5 receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of...HKP-20921$189.95 -
On Sale
HK VP9SK, P30SK Magazine - 20 Round - 9mm
HKP HK Parts / Heckler & Koch
Now: $80.96Was: $89.9510 Round Magazine with Black +10 Extension - 9mm - HK VP9SK & P30SK Drop-in magazine ready to go! HK Parts takes an existing 10 round magazine a +10 magazine extension and assembles them into a...HKP-20599Now: $80.96Was: $89.95 -
On Sale
ASR AC233 Flash Hider - .30 CAL - Threaded 15x1
SilencerCo
Now: $83.66Was: $92.95SilencerCo ASR .30 Cal AC233 Flash Hider - Threaded 15x1 The SilencerCo ASR .30 Cal AC233 Flash Hider is designed for use with ASR (Active Spring Retention) mounts, providing a quick attach/detach...HKP-19507Now: $83.66Was: $92.95 -
HK P30SK 9mm Complete Recoil Spring Assembly
H&K Heckler & Koch
$64.95HK P30SK 9mm Complete Recoil Spring Guide Rod Assembly Brand new HK German manufacture. Compatible With: P30SK 9mmHKP-17938$64.95 -
HK45C, USPC Magazine Floorplate - .45 ACP - 8 Round - Rubberized
H&K Heckler & Koch
$19.95H&K 8 Round HK USPC/45C 45 Magazine Floorplate This item is the new rubberized version, built to reduce breakage when dropped. Compatible With: HK45C 8 RoundsHKP-02212$19.95 -
HK USP Buffer Spring
H&K Heckler & Koch
$9.95HK USP Recoil Rod Secondary Buffer Spring This is the spring found under the larger primary recoil spring on the recoil assembly Compatible With:HKP-02470$9.95 -
HK Pistol Trigger Axle
H&K Heckler & Koch
$9.95HK Pistol Trigger Axle Compatible With: HK USP 9mm .40 S&WHKP-01806$9.95 -
HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - OD Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - OD Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but...HKP-18888$139.95 -
HK MP5K, SP89, SP5K Cocking Tube - 9mm
HKP HK Parts
$84.95MP5K, SP89, MP5K-N, MP5K-PDW Cocking Tube - USA This part is built to exact HK German specifications. The only MP5K cocking tube on the market that is a duplicate from factory HK German prints and...HKP-01838$84.95 -
On Sale
HK MP5K Trunnion - 9mm
HKP HK Parts
Now: $36.94Was: $57.95HK MP5K Trunnion - USA US made to exact factory HK specifications for the HK MP5K type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA...HKP-17964Now: $36.94Was: $57.95