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 P2000 to HK P30, VP9 Magazine Adapter
X-Grip
$15.95X-Grip HK P2000 to P30/VP9 Magazine Adapter The XGRIP P2000 is a new patent pending OEM factory accessory for the HK P2000 that enhances the versatility, look, and feel of the gun. Features: Versatility: Size of a Compact, capacity of a Full-Size The...HKP-16670$15.95 -
HK Magazine Catch, Push Button Roll Pin
H&K Heckler & Koch
$4.95H&K Magazine Catch, Push Button Roll Pin New HK German-made. The mag catch roll pin is used to attach the magazine catch to the mag release button. Compatible With: HK G3, 91, PTR HK MP5, 94, SP5 HK 93, 33, 53 HK SP89, MP5K,...HKP-01918$4.95 -
B&T Vertical Foregrip - Short Style - Quick Detach
B&T Brugger & Thomet
$75.00B&T Quick Detach Short Style Vertical Grip - Black Swiss made B&T quick detach short vertical for-end grip with quick release throw lever for picatinny. Made of black polymer and includes a water tight storage compartment in the bottom of the...HKP-17679$75.00 -
HK VP9, VP40 International Holster - Comp Carry
Comp-Tac
$79.95Comp-Tac HK VP9/VP40 International Comp Carry Holster At last a 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...HKP-20013-M$79.95 -
HKP Roller +3 - New - 8.03mm
H&K Heckler & Koch
$8.99Roller +3 - New - 8.03mm HK Parts Standard (8.03 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19425$8.99 -
Out Of Stock
HK P2000SK Magazine - 10 Round - 9mm
H&K Heckler & Koch
$54.95HK P2000 SK 9mm - 10 Round Magazine With Finger Rest Fits the HK P2000SK sub-compact (SK) model only—new Factory German HK manufacture.HKP-00308$54.95 -
HK Screw Set for HKP Rail Mount Compensator
HKP HK Parts
$4.95Replacement Screws for Rail Mount Compensator Replacement screw set for the HK Parts Rail Mount Compensators. This includes (2) screws. Compatible With: All HK Parts Rail Mount CompensatorsHKP-19674$4.95 -
HK MP5K, SP5K, SP89 9mm Brace or Stock Adapter with Picatinny Rail
JMAC Customs
$94.95JMAC Customs MP5K, SP5K, SP89 9mm Brace/Stock Adapter with Picatinny Rail This stock adapter allows you to attach any 1913 style stock, brace to your MP5K. The 1913 style stocks & braces lock in place and provide a better Cheek Weld than many...HKP-18990$94.95 -
On Sale
Glock 17, 19 Window Magazine - 9mm - 30-Round
AC-Unity
Now: $13.95Was: $19.95AC-Unity 30-Round Glock 17, 19 9mm Window Magazine The AC-Unity 30 round 9mm window magazine for Glock models 17, 18, 19, 19X, 26, 34, 45. Will work in anything designed to accept a Glock 17 9mm double-stack magazine. Originally...HKP-20157Now: $13.95Was: $19.95 -
HK21, FMP21 T-Rail Set
HKP HK Parts
$119.95HKP HK 21 (7.62x51/.308) Factory Style T-Rail Set HKP HK21 US made rails for all HK21 and FMP21 builds. Our steel T-rails incorporate an updated radius to address a weak link in previous iterations. Compatible With: HK21 FMP21HKP-21457$119.95 -
HK USP Jet Funnel Kit - 9mm / .40 S&W - Upgrade
H&K Heckler & Koch
$64.95H&K HK USP Jet Funnel Kit Brand new factory HK German Jet Funnel kit for the HK USP 9mm and USP .40 full-size pistols. Easy to install, no gunsmithing, or modifications needed. Compatible with all Jet Funnel magazines. A must-have if you plan on...HKP-00306$64.95 -
HK VP9 Tactical Barrel - 9mm - 4.7" - Threaded 13.5x1 LH
H&K Heckler & Koch
$274.95H&K VP9 9mm Tactical Barrel - Threaded 13.5x1 LH Precision-made in Germany by HK from cold hammer forged (CHF) ordnance-grade steel, this is the finest threaded factory barrel available for the HK VP9 or VP9 Tactical pistol. Ideal as a spare or...HKP-17995$274.95