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
-
On Sale
HK UMP .45 ACP 15 Round Magazine
HKP HK Parts
Now: $39.95Was: $49.95UMP, SMG .45 ACP 15 Round Magazine - USA Compact 15 round magazine will fit all HK UMP .45 caliber carbines, SMG's as well as the USC-UMP .45 caliber converted firearms. Each magazine features, steel feed lips, and robust polymer construction. Each mag...HKP-17585-MNow: $39.95Was: $49.95 -
On Sale
HK MP5, SP5K, SP89, Optic Mount Bundle - Holosun Reflex X2
Holosun
Now: $354.95Was: $394.95Holosun X2 - Red 2 MOA Dot & 32 MOA Circle - Optic Mount - Bundle - HK MP5 Includes: (1) Holosun Reflex X2 MRS Red Solar (1) MP5 RMR Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver...HKP-20735Now: $354.95Was: $394.95 -
On Sale
HK91, G3 Weldment Set Complete
HKP HK Parts
Now: $79.95Was: $99.95HK G3, HK91, PTR Weldment Set Complete New US manufactured billeted from solid ordnance grade bar stock. Perfect for roller lock or other custom builds. Each weldment set unit is precisely machined. Includes: Rear sight base Semi auto shelf 2 X rear...HKP-17509Now: $79.95Was: $99.95 -
On Sale
HK MP5K Vertical Foregrip - M-LOK Cantilever Rail - US
HKP HK Parts
Now: $62.95Was: $69.95HKP HK MP5K Magpul VFG w/Cantilever M-LOK Rail New VFG for the MP5K platform is now M-LOK compatible and comes pre attached with a Magpul M-LOK polymer cantilever rail. The perfect combination to install lights or lasers. M-LOK slots are integrated on...HKP-20738Now: $62.95Was: $69.95 -
HK23, HK21, HK11, MG3 Ammunition Belt Starter Tab
H&K Heckler & Koch
$5.95H&K HK21/MG3 Ammo Belt Starter Tab - 7.62x51/.308 Starter tabs for HK21 and MG3 belt-fed rifles. Compatible With: HK 23/21/11HKP-21439$5.95 -
HK91, G3, PTR Magazine - 20 Round - Aluminum - Rheinmetall - Used
Rheinmetall
$12.95Rheinmetall HK G3, HK91, & PTR91 - 20 Round Magazine - Used Perfect for your HK G3/PTR style firearm. The G3 alloy mags were made for the German Army and are no longer in production. Once they are gone, they are gone for good. LAST...HKP-21840$12.95 -
On Sale
HK MP5SD Barrel Shroud - Enhanced
HKP HK Parts
Now: $103.95Was: $129.95HKP MP5SD weldable suppressor shroud for HK MP5 SD builds The HKP SD shroud is fully de-burred with the handguard attachment lugs being machined in from the outset, not welded, which is commonly found in aftermarket-style shrouds. Specifications: Made...HKP-15701Now: $103.95Was: $129.95 -
HK MP7 Magazine - 4.6x30mm - 30 Round
H&K Heckler & Koch
$81.95MP7 30 Round Magazine New factory German HK 30-round magazine for the 4.6x30mm HK MP7A1 & MP7A2 weapon system. This is a popular spare magazine option as it is not too large and not too small of capacity.HKP-02455$81.95 -
On Sale
HK MP5, MP5K Optic Mount - Aimpoint ACRO P-1, P-2
HKP HK Parts
Now: $78.95Was: $98.95HKP HK MP5, MP5K Aimpoint ACRO P1, P2 Optic Mount The HK Parts Aimpoint ACRO low-profile mount is perfect for shooters seeking a minimalistic mount with an absolute co-witness. Crafted in the US from aircraft grade aluminum and coated in...HKP-21229-MNow: $78.95Was: $98.95 -
On Sale
HK MP5, HK90 Series Push Pin Spring
Now: $1.45Was: $1.95Replacement Spring for HK style push pin - Small A must have replacement item to have on hand. A quick and easy install spring to get your push pins back to working condition. A great replacement for those worn-out springs that come loose while in...HKP-20368Now: $1.45Was: $1.95 -
HK VP9, P30, USPC, P2000 Magazine Follower - 9mm, .40 S&W
H&K Heckler & Koch
$9.95Heckler and Koch 9mm and .40 S&W Magazine Follower for HK VP, HK P30, HK USPC, and HK P2000 This is a great replacement item and one that is good to have on hand for spares as they wear with use. Compatible...HKP-02367-M$9.95 -
Out Of Stock
HK MP5 Bolt Carrier - Full Auto - 9mm
RCM
$146.95MP5 9mm Full Auto Bolt Carrier - RCM New US RCM manufactured MP5, 94 F/A carrier with all current "F" style upgrades and tungsten filled for the best performance and the utmost reliability. They were machined completely from billet ordnance grade steel...HKP-01188$146.95