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 MP5, HK33, HK93 A2 Fixed Buttstock - Wood
H&K Heckler & Koch
$399.95HK Heckler and Koch Fixed Wood Stock for HK MP5, HK94, HK93, HK33 Never before has there been a commercially available wooden stock for the HK 93 & MP5 series of firearms. The wood stock is a factory surplus walnut stock integrated with the factory...HKP-16328$399.95 -
On Sale
HK MP5K, SP5K Folding Brace
B&T Brugger & Thomet / SB Tactical
Now: $203.95Was: $239.95Folding Brace - Swiss - B&T MP5K, SP5K Factory Swiss B&T MP5K, SP5K Folding Pistol Brace with the SB Tactical/B&T components assembled. A rare offering using the B&T Swiss manufactured folding polymer end cap with sling swivel. Available...HKP-19356Now: $203.95Was: $239.95 -
HK416, MR556 Mil-Spec Enhanced Buffer Tube
H&K Heckler & Koch
$254.95HK 416 & MR556 OTB (over the beach) Buffer Tube/Receiver Extension Each mil-spec buffer tube has built-in drainage holes in the rear of the tube and also on the bottom to maximize efficiency. Each buffer tube has ball-bearing rollers to tighten the...HKP-02716$254.95 -
On Sale
HK91, G3, PTR Magazine Floorplate - 7.62x51 / .308 - 20 Round
Now: $15.95Was: $19.95HK 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine Floor Plate USA made floor plate for HK 91, G3, PTR 91 20-Round Steel and Aluminum Magazines. This floor plate is made in the USA and counts as one US made compliant part needed for builds and conversions...HKP-18921Now: $15.95Was: $19.95 -
On Sale
HK MP5K Picatinny End Plate Adapter
MI Midwest Industries
Now: $80.95Was: $89.95MI HK MP5K 1913 Picatinny End Plate Adapter The Midwest Industries Picatinny end plate adapter opens up a myriad of off-the-shelf stock and brace options. The adapter installs in the same manner as the factory end cap with the factory push pins...HKP-21584Now: $80.95Was: $89.95 -
On Sale
HK VP9 Gen1 V2 Rail Mount Compensator for Threaded Barrel
HKP HK Parts
Now: $99.95Was: $169.95HKP HK VP9 Gen1 V2 Rail Mount Compensator for Threaded Barrel Made specifically for the VP9 Tactical or VP9 with Threaded barrel - Version 2. Version 2 has the weight reduction cut-out located in the front (as seen in the photos). Besides this V1 and V2...HKP-19470Now: $99.95Was: $169.95 -
Out Of StockOn Sale
HK MP5, HK53 Handguard - Tri-Rail
B&T Brugger & Thomet
Now: $246.95Was: $275.00B&T MP5, HK53 Tri-Rail Handguard The B&T handguard 3x NAR is a modular forend system designed for the HK MP5 submachine gun. It offers a versatile and customizable mounting platform for various accessories such as lights, lasers, and grips. The...HKP-16885Now: $246.95Was: $275.00 -
On Sale
HK MP5, MP5K Extractor - Coated and Polished
HKP HK Parts
Now: $35.95Was: $44.95HKP HK MP5/MP5K Extractor - Enhanced - Coated and Polished Built for dependable performance, this coated and polished extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements...HKP-22181-MNow: $35.95Was: $44.95 -
On Sale
HKP 9mm Knurled Micro Comp - Threaded 1/2x28 RH
HKP HK Parts
Now: $23.95Was: $29.95HKP 9mm Knurled Micro Comp - Threaded 1/2x28 RH The HK Parts Micro Comp & Thread Protector is a sleek, functional solution for enhancing your 9mm pistol's performance. Designed to be lightweight and efficient, this micro compensator easily attaches...HKP-21124Now: $23.95Was: $29.95 -
On Sale
HK SP5K Side-Folding Brace - Skeletonized
HKP HK Parts / SB Tactical
Now: $206.95Was: $229.95Side Folding Pistol Stabilizing Brace with HK Parts Adapter - HK MP5K, SP89, SP5K & Clones The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Available exclusively at HK Parts. Features: Made...HKP-21056Now: $206.95Was: $229.95 -
On Sale
HK VP9 Optic Plate - Shield Sights - Red Dot Pistol Mount
HKP HK Parts
Now: $39.95Was: $49.99HK VP9 Optics Mount -Shield Sight Each plate is CNC machined from the best quality billet steel, deburred, tumbled and Cerakoted for the ultimate in durability and appearance. Each unit comes with 2 X T20 steel Torx Plus screws for mounting the optic...HKP-20796Now: $39.95Was: $49.99 -
On Sale
HK45 Holster - Comp Carry
Comp-Tac
Now: $67.95Was: $79.95Comp-Tac HK 45 Full Size Comp Carry Holster This custom made Comp-Tac International OWB holster for your HK pistol that allows you to have the Rail Mount Compensator, Comp Weight, or Match Weight installed. Manufactured by the best holster company in the...HKP-20585-MNow: $67.95Was: $79.95