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
Pistol Flash Hider - 9mm - 4 Prong - Threaded 1/2x28 - BLEMISHED
USA
Now: $53.95Was: $74.95HK (9mm) 4 Prong Pistol Flash Hider - Threaded 1/2x28 - BLEMISHED VARYING CONDITION SHOWN IN PHOTOS - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-01965-BNow: $53.95Was: $74.95 -
HK VP9SK Competition Magwell
HKP HK Parts
$59.95HKP HK VP9SK Competition Magwell Lightweight VP9SK Magwell with a flared funnel for faster, more reliable reloads. Features: CNC machined from billet aluminum Type 3 hard coat anodized finish Functional funnel design for faster, smoother reloads Made in...HKP-22336-M$59.95 -
HK VP9SK EDC Magwell
HKP HK Parts
$55.95HKP HK VP9SK EDC Magwell Lightweight alloy magwell for quicker mag swaps while maintaining a low-profile. Features: CNC machined from billet aluminum Type 3 hard coat anodized finish Functional funnel design for faster, smoother reloads Made in...HKP-22330-M$55.95 -
On Sale
HK VP9, VP40 Competition Magwell Extension - Purple - BLEMISHED
HKP HK Parts
Now: $69.95Was: $129.95HKP HK VP9, VP40 Competition Magwell Extension - Purple - BLEMISHED Our 2-piece, steel insert competition VP9/VP40 extended flared magwell is CNC made from heat treated 4140 billet nitrided steel. The upper portion of the magwell is machined from...HKP-21079-PU-BNow: $69.95Was: $129.95 -
HK CC9 Magazine Body - 9mm - 12 Round
H&K Heckler & Koch
$5.95Heckler and Koch 12-Round Magazine Body for HK CC9 OEM 10-round magazine body for the HK CC9, made in Germany by Heckler & Koch and ideal as a factory-spec replacement. Compatible With: CC9HKP-22147$5.95 -
HK CC9 Firing Pin
H&K Heckler & Koch
$55.95H&K CC9 Firing Pin Made in Germany by H&K, the firing pin for the CC9 pistol strikes the primer to ignite the cartridge. Compatible With: HK CC9HKP-22136$55.95 -
HK CC9 Extractor Buffer
H&K Heckler & Koch
$5.95H&K CC9 Extractor Buffer Made in Germany by H&K, the extractor buffer for the CC9 cushions extractor movement and reduces wear during cycling. Compatible With: HK CC9HKP-22131$5.95 -
Out Of Stock
HK P30SK Firing Pin Safety Spring
H&K Heckler & Koch
$4.95H&K P30SK Firing Pin Safety Spring Replacement firing pin safety spring for the P30SK. Maintains proper tension on the firing pin safety plunger to ensure safe and reliable function. Compatible With: HK P30SKHKP-21977$4.95 -
Out Of Stock
Picatinny Optic Mount - 52mm - Skeleton - Aimpoint ACRO
B&T Brugger & Thomet
$148.95B&T 52mm QD Skeleton Mount for Aimpoint ACRO The B&T QD Skeleton Mount for the Aimpoint ACRO offers a 52mm elevated profile for improved sight alignment. It is ideal for night vision setups that require clearance over forward-mounted IR devices...HKP-21860$148.95 -
HK USP Magazine Extension - 9mm - +7 Round
HKP HK Parts
$69.95HK Parts Magazine Extension for your HK USP or HK USPT 9mm +7 Magazine Extension Easy to install. Simply add the mag extension to your existing mag body and follower. No gunsmithing required. Made in the US from aircraft-grade hard coat anodized aluminum...HKP-21841-M$69.95 -
HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5
Nefarious Arms
$594.95Nefarious Arms HK MR556/HK416 11" A5 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER. THE MARKING IS NOT VISIBLE ONCE INSTALLED. THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...HKP-21839$594.95 -
HK G36 Magazine Spring - 30 Round
HKP HK Parts
$7.95HKP HK G36 Replacement 30 Round Magazine Spring A high-quality replacement spring designed to restore optimal performance to your G36 magazine. Built to withstand frequent use, this component ensures smooth feeding and reliable function. Compatible...HKP-21830$7.95