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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HK MP5SD Parts Kit - Pistol Build - 9mm - Receiver Flat and Weldment Set
HKP HK Parts
$2,249.95HKP HK MP5SD Kit - Pistol Build - 9mm MP5SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts. This is the first time that these iconic kits have been...HKP-18052$2,249.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Tactical Grip
Ergo
$54.95Ergo Grip PSG1 Style Grip For MR556 & MR762 Just in and a great upgrade if you want the PSG1 style grip frame for your HK MR556, MR762 & HK416, HK417, G28 firearm. The ergonomically enhanced ERGO Tactical Deluxe Grips fits all AR15, M16 and MR...HKP-17131$54.95 -
Out Of Stock
HK MP5 Barrel Retaining Pin - 5.015mm
H&K Heckler & Koch
$14.95H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel. Compatible With: HK MP5, SP5, MP5K,...HKP-22284$14.95 -
B&T TP9 Top Cover, Side Optic Mount - Complete
B&T Brugger & Thomet
$159.95B&T TP9 Top Cover Complete with Side Mounting Rail Compatible With: B&T TP9HKP-17293$159.95 -
On Sale
HK P30 Compensator - Quick Detach
HKP HK Parts
Now: $99.95Was: $199.95HK P30, P30S - Quick Detach Comp Weight™ - 9mm & .40 Cal - Steel Version Easy on, easy off - Quick Detach technology The perfect addition to your HK P30 firearm with our low profile, aggressive Comp Weight™ that flows with the lines of...HKP-18469Now: $99.95Was: $199.95 -
Out Of Stock
HK VP40 Barrel - .40 S&W - 4.45" - Threaded 14.5x1 LH
RCM
$225.00RCM HK VP40 .40 S&W Tactical Barrel - Threaded 14.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK VP40 .40 cal...HKP-17369$225.00 -
HK45, HK45C, USP Compact Magazine Locking Plate
H&K Heckler & Koch
$7.95HK USPC, 45, & 45C Magazine Locking Plate New factory German HK. Compatible With: HK45 HK45 Tactical HK45C HK45C Tactical HK USPC .45 HK USPC .45 TacticalHKP-02250$7.95 -
HK416, MR556 Extractor Axle Pin
H&K Heckler & Koch
$11.95HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK MR556 HK 416 M27 HK 416 A5HKP-00040$11.95 -
HK416 Retractable Buttstock - Factory
H&K Heckler & Koch
$129.95HK 416 & AR15 6 Position Retractable Stock New HK Marked 6 position AR15 commercial stock. This stock fits all commercial AR-15/M16 buffer tubes. The stock telescopes expands and retracts to 6 locked positions. Marked with the HK logo and...HKP-00049$129.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - A1 Style
H&K Heckler & Koch
$24.95Heckler and Koch A1 Handguard Rail System Screw for HK416, HK MR556, HK417, and HK MR762 Factory HK handguard rail screw for A1 handguards. Compatible With: HK416 A1, MR556 A1 HK417 A1, MR762 A1 (2 required per handguard)HKP-02717$24.95 -
HK UMP (.40 S&W/.45 ACP/9mm) Gunsmithing Bench Mat
HKP HK Parts
$24.95HK UMP, USC Bench Mat, Gunsmithing Mat Our HK USC & UMP bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch models. Have fun and learn while you work on your favorite H&K firearm. The soft top...hkp-17617$24.95 -
HK91, G3 Handguard - Slimline Style - Jungle Green - Used Excellent
H&K Heckler & Koch
$29.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Excellent Used in excellent shape. These are a nice addition to the collection. Compatible With: All full forearm length HK 91, G3, PTR style firearmsHKP-19042$29.95