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, HK94 Folding Stock - UMP Style
B&T Brugger & Thomet
$279.95B&T MP5 & HK94 UMP Style Folding Stock New Swiss/German HK Made B&T Folding Stock for the MP5/ SP5 full size. These are hard to find and the real deal. 100% Swiss & German HK made. This is a...HKP-16928$279.95 -
HK MP5, MP5K Cocking Handle - Knurled - Extended
Leapers - UTG
$29.97HK MP5, MP5K Cocking Handle Extended Extended cocking handle for the MP5 style of firearms. These cocking handles also count towards one US made component for 922r compliance. Made by UTG to work...HKP-22421$29.97 -
HK VP9 Optic Plate #4 - Leupold DeltaPoint Pro, Eotech EFLX - Red Dot Pistol Mount
H&K Heckler & Koch
$49.95Optics Plate #4 Leupold DeltaPoint Pro & Eotech EFLX - HK VP9, VP9L New HK German OEM manufacture steel optics plate Compatible With: HK VP9 OR, VP9 Tactical ORHKP-19255$49.95 -
HK VP9, P30, HK45 Optic Plate - Trijicon RMR, Holosun, Swampfox - Red Dot Pistol Mount
HKP HK Parts
$49.95Trijicon RMR Pistol Mount RMR mounting plate to allow the use of the following: Trijicon RMR & SRO models Holosun HE407C / HE407C X2 / HE507C / HE507C X2 / HS407C / HS407C X2 / HS507C / HS507C X2,HKP-18503$49.95 -
HK P2000, USPC Magazine - 10 Round - .40 S&W
H&K Heckler & Koch
$54.99 - $59.95H&K 10 Round HK P2000/USPC .40 S&W Magazine Factory HK German 10 Round magazine. Compatible With: HK USP Compact .40 S&WHKP-00311-M$54.99 - $59.95 -
HK USP, USPT Magazine with Extension - .40 S&W - 18 Round
HKP HK Parts
$79.95HKP/H&K USP/T .40 S&W 18 Round Complete Magazine With Extension HK Parts magazine extension adds 5 additional rounds to the full size USP & USP Tactical, 13 round magazine. Each unit is then fully...HKP-18643-M$79.95 -
HK MP5K, SP89, SP5K Handguard with Handstop
HKP HK Parts
$29.95MP5K, SP89, SP5K, Reverse Stretch Forearm With Hand Stop Each forearm will fit the MP5K or SP89 style of firearms. As an added bonus, this item counts as a US made part toward 922r compliance. Each...HKP-16466-M$29.95 -
Out Of Stock
HK416, MR556, G36 Gas Piston - Complete
H&K Heckler & Koch
$59.99H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston New HK German gas piston assembly with three locking piston rings installed. This is a great spare part to have on hand, as the gas piston takes...HKP-00047$59.99 -
HK91, G3 Cocking Handle Support
H&K Heckler & Koch
$24.95New HK German 91, G3, & PTR Cocking Handle Support A genuine German Heckler & Koch all-steel part. Compatible With: HK91HKP-01442$24.95 -
On Sale
Ultra Gun Oil - AntiVenom XPLC - Lubricant and Cleaner
Strike Industries
Now: $12.34Was: $14.95AntiVenom-XPLC Lubricant and Cleaner Strike Industries introduces the industry's most extreme general-purpose weapons lubrication, cleaning, and protection solution. Strike Industries AntiVenom-XPLC...HKP-18410Now: $12.34Was: $14.95 -
On Sale
HK MP5, MP5K Soft Case - Load Out - 28"
HKP HK Parts
Now: $63.97Was: $79.95HK Parts Load Out Soft Case 28" long for storing your HK MP5 The HK Parts MP5 Load Out soft case was designed with versatility in mind. The case can be used to transport 1 or 2 MP5 platform...HKP-21670Now: $63.97Was: $79.95 -
HK MP5 Bolt Head - 9mm
RCM
$284.95RCM HK MP5-E 9mm Bolt Head Equipped with a heavier duty extractor and extractor spring, the RCM MP5-E bolt head is a drop-in upgrade for all MP5/MP5K's. Spend more time at the range, less time on...HKP-20954$284.95