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 MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Bundesadler
Zenith
Now: $39.56Was: $43.95Zenith 30 Round HK MP5 Bundesadler Magazine The Bundesadler laser-etched into a Zenith magazine. Limited run so get them while you can! Application of oil is recommended depending on climate...HKP-20913Now: $39.56Was: $43.95 -
HK416, MR556 Ejection Port Cover
H&K Heckler & Koch
$58.95H&K HK MR556/416 Ejection Port Cover HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556. This item can also be used on other AR15-style projects to enhance the...HKP-15229$58.95 -
HK VP9, VP9SK, VP40 Clamping Sleeve For Drop Safety Axle
H&K Heckler & Koch
$6.95Clamping Sleeve For Drop Safety Axle VP9, VP9SK & VP40 This is the roll pin that goes in the side of the slide and retains the drop safety.HKP-16838$6.95 -
HK91, G3 Cocking Handle - All Metal - Surplus
H&K Heckler & Koch
$8.49HK German HK G3 & HK 91 Older Style All Metal Cocking Handle Used German Military Surplus. No longer made or offered by HK. A genuine Heckler and Koch part. All steel cocking handle. Rare and hard to...HKP-16766$8.49 -
Out Of Stock
Micro Dot Sight - Red and Green - Low Profile
AIM
$59.95Micro Red Dot Low Profile Sight With Green & Red Dot Option For those that require a good, reliable, well made optic without the name brand or heavy price tag, this is an outstanding choice. This...HKP-16209$59.95 -
HK UMP Lower Locking Pin
HKP HK Parts
$12.95HK UMP Lower Locking Pin, Push Pin For use with all HK UMP lowers & USC to UMP conversions. Made in the USA. This is the pin that holds the lower to the receiver. Compatible With:HKP-18580$12.95 -
HK VP9, VP40 Spring Bushing - Washer
H&K Heckler & Koch
$9.95H&K HK VP9, HK VP40 Half Shell Spring Washer 2 units needed for complete set. Brand new factory German HK. This item is the item that cradles the firing pin and is covered by the firing pin sleeve...HKP-16832$9.95 -
On Sale
GSG5, SIG Magazine Spring - Kimber - 1911 .22LR conversions
GSG German Sports Guns
Now: $1.49Was: $3.95GSG/Sig Sauer/Kimber Magazine Spring German-made spare magazine spring for your 10-round 1911 magazine. Compatible With: GSG5 1911HKP-02795Now: $1.49Was: $3.95 -
HK MP5, MP5K, HK94K, SP89 Magazine Follower - 9mm
H&K Heckler & Koch
$22.95HK MP5, MP5K 9mm Magazine Follower Factory chrome follower will work with all HK MP5 9mm curved magazines. This is a new HK German OEM part. 40 Round 30 RoundHKP-01050$22.95 -
Out Of Stock
HK MP5, MP5K Drum Magazine - 50 Round - 9mm
F5 MFG
$199.00F5 MFG 50 Round HK MP5 and HK MP5K 9mm Drum Magazine HK MP5 and HK MP5K 9mm - 50 Round Drum New 3rd generation redesigned version. Now offered at an even lower price! You asked for it and the...HKP-16537-M$199.00 -
On Sale
PTR Muzzle Brake - Threaded 15x1 RH
PTR
Now: $20.76Was: $25.95PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH Correct HK threading 15x1 right hand with HK style retaining spring to latch on the HK splined barrel. Made in the US and counts as...HKP-02148Now: $20.76Was: $25.95 -
On Sale
Magpul M-LOK 3 Slot Rail Section
Magpul
Now: $9.86Was: $10.95Magpul M-LOK Rail Section - 3 Slots Designed for use with all M-LOK compatible hand guards and forends, M-LOK aluminum rail sections allow the attachment of various 1913 Picatinny spec rail-mounted...HKP-20661Now: $9.86Was: $10.95