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
HK91, G3 Telescopic Stock
MKE
Now: $314.95Was: $349.95MKE Telescopic Stock for HK G3 and HK91 The MKE telescopic G3 stock is an easy-to-install replacement stock system for HK G3-style firearms. The simple lock/release system is easy to operate, allowing shooters to quickly adjust stock length. Steel rails...HKP-21182Now: $314.95Was: $349.95 -
On Sale
HK MP5 Sling Clip for Magwell
HKP HK Parts
Now: $7.95Was: $9.95HKP MP5 Sling Clip for Magwell This is the factory correct sling clip that attaches to the left hand side of the magwell. Note: 3 rivets are required to attach - sold separatelyHKP-18313Now: $7.95Was: $9.95 -
HK MP5, HK94 Optic Mount - Extended - Low Profile - Windowed
MFI
$124.95MFI MP5, 94 Extended Low Profile Scope Mount-Windowed MFI's newest addition to the line-up is a full inch longer, measuring 6.5 inches and featuring windows to view the factory serial number through the mount. This option is the longest, low-profile...HKP-16225$124.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - 5 Pack
Zenith
$184.9530 Round Magazine - Zenith - MP5, MP5K - 5 Pack Features: Durable electro-plated black finish for exceptional corrosion resistance All steel construction Round count indicator holes on the rear of the magazine Stainless steel follower Reinforced feed...HKP-20672$184.95 -
HK MP5, MP5K, SP5, SP5K Magazine - 30 Round - LEO Marked
Zenith
$52.95Zenith 30 Round HK MP5 Magazine - LEO Marked Replica LEO laser markings that closely resemble those found on factory magazines. These markings are expertly lasered onto Zenith magazines, successfully emulating the sought-after LEO markings of authentic...HKP-21612-M$52.95 -
On Sale
HK P30 Series Magazine Release - Enhanced
HKP HK Parts
Now: $39.95Was: $49.95HKP HK Parts Enhanced Alloy Magazine Release for HK P30, HK P30SK, and HKP30L New HK Parts Enhanced and Over-sized Magazine Release. The oversized magazine Release increases the overall surface area and makes it possible to release the magazine...HKP-21153-MNow: $39.95Was: $49.95 -
On Sale
HK91, G3 Tactical Grip for Metal Grip Frames
Ergo
Now: $50.95Was: $59.95Ergo G3, 91, PTR Tactical Grip For Metal Grip Frames The ergonomically enhanced ERGO Tactical Deluxe Grips are compatible with all metal HK grip frames, both the semi-auto & full auto metal grip frames. Compatible With: HK 91, G3, PTR, CETME, 93,...HKP-14092Now: $50.95Was: $59.95 -
HK MP5 Folding Stock - 9mm
B&T Brugger & Thomet
$325.00B&T MP5 Folding Stock - 9mm - For All MP5 Full Size Variants Swiss-made B&T folding stock for the MP5 & HK94. This is a military-grade stock as supplied by B&T to HK Germany. B&T Switzerland has supplied these to law...HKP-00460$325.00 -
On Sale
HK UMP 9mm 30 Round Magazine
HKP HK Parts
Now: $39.95Was: $49.95UMP 9mm 30 Round Factory Magazine - USA UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30 round magazine capacity. Each magazine counts as 3 U.S. Made compliant parts as an added bonus! This is the finest...HKP-17701Now: $39.95Was: $49.95 -
On Sale
HK91, G3 Magazine - 20 Round - 7.62x51/.308
Thermold
Now: $17.95Was: $19.95Thermold HK91, G3 Magazine - 20 Round - 7.62x51/.308 - US Made This US-made magazine is made of space-age polymer. Also, it counts as three US-made compliance parts. Each magazine features a fail-safe follower non-corrosive (polymer magazine body)...HKP-02612Now: $17.95Was: $19.95 -
On Sale
Uzi Top Cover Complete - Surplus
IMI
Now: $21.95Was: $24.95Uzi Top Cover Complete - Surplus IMI Uzi SMG top cover surplus. Perfect working condition.HKP-19988Now: $21.95Was: $24.95 -
HK Trip Lever- Friction - Used - Surplus
H&K Heckler & Koch
$3.74H&K Trip Lever- Friction - Used - Surplus HK German trip lever for HK F/A or registered sear trigger packs in used surplus condition. This is the older friction style trigger pack found on older HK trigger packs and all HK registered sear packs.HKP-17760$3.74