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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On Sale
IMI UZI Complete A.R.S Lower Grip - USED
IMI
Now: $138.95Was: $189.95IMI UZI Complete A.R.S Lower Grip - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Israel manufactured complete lower grip. Each grip in is good condition and show signs of wear. Please Note: This lower grip may or may not be marked with the A.R.S...HKP-99193Now: $138.95Was: $189.95 -
On Sale
HK MP5K Adapter - Folding Stock
B&T Brugger & Thomet
Now: $143.95Was: $160.00B&T HK MP5K Adapter for Folding Stock Upgrade your MP5K platform with precision Swiss engineering. The B&T (Brügger & Thomet) HK MP5K Adapter for Folding Stock is designed to provide a secure and reliable mounting interface for...HKP-22081Now: $143.95Was: $160.00 -
Out Of Stock
HK VP9, VP40 Optic Mount, Aimpoint ACRO P-1, P-2
B&T Brugger & Thomet
$55.00B&T HK VP9 Mounting Base for Aimpoint ACRO P-1 and P-2 Upgrade your HK VP9 or VP40 with the B&T mounting base for Aimpoint ACRO optics. Made from high-quality steel, this durable mounting base ensures a secure and precise fit for your red dot...HKP-21863$55.00 -
HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Alpine Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - OD Green - HK93,33,53 German military surplus but hand-picked to give you the best of the lot. Ready to install on your HK or clone rifle. Each stock features the correct all-metal backplate painted in HK black...HKP-21847$139.95 -
On Sale
HK21, FMP Drum and Drum Hanger - 100 Round
H&K Heckler & Koch
Now: $1,188.95Was: $1,288.95HK Heckler and Koch HK21 and FMP Drum Hanger with 100 Round Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long been discontinued and are essential for...HKP-21509Now: $1,188.95Was: $1,288.95 -
On Sale
HK MP5 Stock - MOD2 - Strike Industries
HKP HK Parts / Strike Industries
Now: $111.71Was: $199.95Strike Industries HK MP5 Drop-In MOD2 Stock We pair our MP5 AR Stock adapter with this Strike MOD2 stock to give you a drop-in MP5 stock. Give your build a modern look and added comfort and adjustability of the MOD2 stock. Only available here at HK...HKP-21331-MNow: $111.71Was: $199.95 -
On Sale
HK P2000 Magazine Extension Kit - +10
HKP HK Parts
Now: $51.95Was: $64.99HKP HK P2000 +10 Magazine Extension Kit HK Parts magazine extension adds 10 additional rounds to the HK P2000 magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly recommends using a magazine loader when loading...HKP-20811Now: $51.95Was: $64.99 -
On Sale
HK SP5, AR, M4 Adapter - Stock or Brace
HKP HK Parts
Now: $79.95Was: $99.95AR, M4 Brace/Stock Adapter - HK SP5 This is the finest AR stock adapter available period. No other adapter compliments the lines of the HK 9X series better than the HK Parts AR adapter. A great way to add a stock or pistol brace to any HK SP5. Easy...HKP-20748Now: $79.95Was: $99.95 -
On Sale
HK G36, G36K Folding Stock - FDE
HKP HK Parts
Now: $87.95Was: $109.95Folding Stock - HK G36, G36K - Full Length Stock HK G36 10.5" Stock complete for G36 firearms. The G36/G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter stock to choose the G36C length stock. Each...HKP-19298Now: $87.95Was: $109.95 -
Out Of Stock
HK XM8 Sling - Black
H&K Heckler & Koch
$99.95H&K HK XM8 Sling - Black New HK German XM8 Tactical Sling. The real deal and a rare HK collectible. Only a few available.HKP-17669$99.95 -
On Sale
Blast Diversion Shield - BDS-37 - Bravo with HD 3-Lug Adapter
JMAC Customs
Now: $183.95Was: $229.95JMAC Customs BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter The YHM-2050 HD (heavy duty) 3-Lug Adapter is a quick-attach mounting option designed to provide added strength and longevity to your 3-Lug equipped firearm. This fully...HKP-20521Now: $183.95Was: $229.95 -
On Sale
HK VP9, VP40 Grip Wrap for Large Backstraps - Rubber
Talon Grip
Now: $17.95Was: $19.99TALON Grip - H&K VP9, VP40 - Rubber Black - Large Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...HKP-20241Now: $17.95Was: $19.99