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
HK417 Bolt Carrier - Full Auto
H&K Heckler & Koch
Now: $1,669.95Was: $1,859.95H&K HK417 Bolt Carrier - Full Auto Genuine factory full auto HK417 bolt carrier. Although designed for the full auto HK417, the carrier is compatible with MR762 receivers. Limited number available. Compatible With: HK417 HK...HKP-22282Now: $1,669.95Was: $1,859.95 -
HK416 A1, MR556 A1 Barrel Nut
Nefarious Arms
$49.95Nefarious Arms HK MR556 A1/416 A1 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option. Meticulously crafted in the US to the highest quality standards...HKP-22279$49.95 -
On Sale
HK 90 Series Locking Roller for Bolt Head - 7.96mm
MKE
Now: $22.95Was: $28.95MKE -4 Roller for Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...HKP-22238Now: $22.95Was: $28.95 -
On Sale
HK MP5K Cocking Tube Support - Complete
MKE
Now: $38.46Was: $54.95MKE HK MP5K Cocking Tube Support Complete Complete assembly for proper alignment and reliable operation. Compatible With: Century AP5-P, AP5-M HK MP5K Clones and custom builds (may require slight fitting)HKP-22226Now: $38.46Was: $54.95 -
Out Of StockOn Sale
HK VP9, VP40 Compensator - Quick Detach - Steel - BLEMISHED
HKP HK Parts
Now: $79.95Was: $199.95HK Parts Steel Comp Weight™ Compensator with quick detach for your HK VP9 or HK VP40 BLEMISHED ONLY 1 UNIT AVAILABLE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...HKP-18154-BL-BNow: $79.95Was: $199.95 -
HK Rifle Buttpad for Wooden Stocks - Used
HKP HK Parts
$16.95Heckler and Koch Buttpad for Wooden Stocks - Enhanced Polymer Buttpad - Used Used and in varying condition. See photos for examples. The enhanced polymer buttpad is a direct replacement for the standard fixed stock buttpad and can be swapped out in...HKP-22211$16.95 -
HK USP9 Compact Tactical Compensator - MOD 1 - Threaded
HKP HK Parts
$179.95HKP HK Parts 9mm Threaded MOD 1 Compensator for HK USPC Tactical The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip and recoil, allowing you to...HKP-22185$179.95 -
HK MR556 A4 Operator's Manual
H&K Heckler & Koch
$19.95HK MR556 A4 Operator's Manual Official operator's manual for the HK MR556 A4, covering function, maintenance, and safety procedures.HKP-22176$19.95 -
HK G3 Lower Housing - SEF - Steel - Push Pin - SURPLUS
H&K Heckler & Koch
$49.95H&K G3 SEF Steel Lower Housing - Push Pin - SURPLUS Priced for ONE Housing Unit- Condition Varies by Unit - Sold Individually UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used German-made SEF steel lower housing for the G3...HKP-22159$49.95 -
HK CC9 Slide Release Pin
H&K Heckler & Koch
$5.95H&K CC9 Slide Release Pin Genuine H&K CC9 slide release pin secures the slide release lever to the frame. Compatible With: HK CC9HKP-22121$5.95 -
HK CC9 Sear
H&K Heckler & Koch
$19.95H&K CC9 Sear Made in Germany, this sear for the CC9 pistol engages and releases the hammer during the firing cycle. Compatible With: HK CC9HKP-22116$19.95 -
HK33, HK53, HK93 SBA5 Pistol Stabilizing Brace and Adapter
SB Tactical
$319.95SB Tactical HK 93/33/53 SBA5 Pistol Stabilizing Brace with Adapter SB Tactical combined with our HK 93/33/53 end cap creates a true drop-in brace, perfect for those seeking the flexibility that the SBA5 pistol stabilizing brace offers. With a 5-position...HKP-22069-M$319.95