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
HK416, MR556 Magazine - 30 Round - Windowed
Magpul
Now: $14.36Was: $15.95Magpul PMAG 30 Round MR556/416 & AR-15 (5.56/.223) Magazine-Windowed The Gen M3 PMAG is a 30-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Modified internal and external geometry also permits operation...Now: $14.36Was: $15.95 -
On Sale
HK416 .22LR Magazine - 30 Round - Pistol and Rifle
H&K Heckler & Koch
Now: $31.46Was: $34.95HK, Umarex, Walther, HK416 - .22LR Magazine - 30 Round Magazine Heckler & Koch Factory magazines are made to H&K specifications and tolerances using high quality materials that provide perfect fit, durability and reliability. Expect these...Now: $31.46Was: $34.95 -
On Sale
HK 17 Round HK VP9, HK P30 17 Round 9mm - Red Follower
H&K Heckler & Koch
Now: $44.06Was: $48.95H&K 17 Round HK VP9, HK P30 17 Round 9mm - Red Follower New HK German manufacture & factory fresh production. This is the same mag as the standard VP9/P30 17 round magazine only this mag comes with a factory HK German red follower installed from...Now: $44.06Was: $48.95 -
On Sale
HK Pistol O-Ring - .45 ACP Barrel - Green
H&K Heckler & Koch
Now: $4.46Was: $4.95O-Ring for .45 caliber barrels HK introduced O-rings with the HK Mark 23 and HK USP 45 Tactical pistols. Features: Original green color no longer in production Same high-temperature rubber as the newer black O-rings Factory part that provides the seal...Now: $4.46Was: $4.95 -
On Sale
HK91, G3, HK33, HK93 Grip for Metal Frames - OD Green - Surplus
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus Used in surplus condition. Each item is used in good shape and will clean up nicely with a little bit of TLC and some attention. A great value for the price. Compatible...Now: $8.96Was: $9.95 -
Heckler & Koch Decal Sticker - 5 pack
H&K Heckler & Koch
$0.00Factory Heckler & Koch Logo Decal In Black & Red These decals are the perfect addition to your safe, vehicle, motorcycle, boat, or just about anywhere. Show the world that "In a world of compromise some don't...$0.00 -
On Sale
HK Rear Sight Tool - Diopter Sights
HKP HK Parts
Now: $23.96Was: $29.95HK Diopter Rear Sight Tool - Military Contract Diopter sight tool is perfect for those that need to adjust all sizes of HK diopter type sights for the entire family of HK rifles including clones. A military contract over-run and mil-spec quality at the...Now: $23.96Was: $29.95 -
On Sale
HK German Roll Pin
H&K Heckler & Koch
Now: $2.66Was: $2.95HK German Roll Pin German HK roll pin is crafted from a process using rolled spring steel resulting in robust part with stable fitment. HK suggests replacing the roll pin with a new unit each time it is removed. Fits and retains the extractor, mag...Now: $2.66Was: $2.95 -
On Sale
HK Small Push Pin for Handguards and Lowers
USA
Now: $6.83Was: $7.59HK Small push pin - US Made All steel small push pin for use on the lower grip housing for a push pin style of lower housing. Black nitride finish which adds extra durability to the pin plus corrosion and abrasion resistance. The small push pin is also...Now: $6.83Was: $7.59 -
On Sale
HK USP, HK45C, P2000 Extended Magazine Release
H&K Heckler & Koch
Now: $26.95Was: $29.95HK 45C/USP/P2000 Extended Magazine Release This mag release makes it possible to release the magazine without changing the position of your grip. Compatible With All HK Pistols In All Calibers 45, 40, 357, & 9mm: HK 45C All HK USP Tactical, Elite,...Now: $26.95Was: $29.95 -
On Sale
HK MP5 Magazine Spring - 30 Round
H&K Heckler & Koch
Now: $6.25Was: $6.95HK MP5 30 Round Magazine Spring - German The MP5 30-round spring is a must-have replacement spring for all HK MP5 curved magazines. HK factory springs have been known to help cure worn, weak, or aftermarket magazine springs that do not feed well and...Now: $6.25Was: $6.95 -
On Sale
HK416, Colt M4 Spring Kit - .22LR - Match Trigger Upgrade
HKP HK Parts
Now: $13.99Was: $17.49HK 416 .22 & Colt M4 .22 Match Trigger Spring Kit - Set of 3 Enhanced Springs: The HKP match trigger spring kit delivers a lighter, smoother, and crisper trigger pull translating to on-target accuracy. Lower your pull weight by ~ 3lbs courtesy...Now: $13.99Was: $17.49