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
MKE AP5SD Barrel - USED
Other
Now: $187.95Was: $249.95MKE AP5SD Barrel - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Factory MKE used barrel for MKE AP5SD. Compatible With: MKE AP5SD THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR...HKP-99432Now: $187.95Was: $249.95 -
On Sale
HK21 Barrel Handle with Insert -7.62x51, .308, 5.56, .223 - USED
H&K Heckler & Koch
Now: $68.95Was: $99.95HK21 Barrel Handle with Insert -7.62x51, .308, 5.56, .223 - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Factory German upgrade for HK21 barrel handles Compatible With: HK21 THIS CLOSEOUT PART IS...HKP-99431Now: $68.95Was: $99.95 -
On Sale
HK416, MR556 Takedown Pin - Front - A4 Style - BLEMISHED
H&K Heckler & Koch
Now: $15.95Was: $26.95HK416, MR556 Takedown Pin - Front - A4 Style - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK416 front takedown pin is a German-made component...HKP-21862-BNow: $15.95Was: $26.95 -
On Sale
HK VP9 Optic Plate #12 - Aimpoint ACRO P-1, P-2 - Red Dot Pistol Mount - Alloy - Red - BLEMISHED
HKP HK Parts
Now: $23.95Was: $29.95HK VP9 Optic Plate #12 - Aimpoint ACRO P-1, P-2 - Red Dot Pistol Mount - Alloy - Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The finest all...HKP-21510-RE-BNow: $23.95Was: $29.95 -
On Sale
HK33, HK93 Factory Barrel with Trunnion - USED
H&K Heckler & Koch
Now: $579.95Was: $799.95HK33, HK93 Factory Barrel with Trunnion - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Used factory German HK HK33 NIW barrel with trunnion installed. Factory-installed sight tower with sight...HKP-99427Now: $579.95Was: $799.95 -
On Sale
HK G36, UMP Handguard Handstop - BLEMISHED
OMEGA
Now: $21.95Was: $29.95HK G36, UMP Handguard Handstop - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK G36 hand stop kit. Complete with locking block and screw. Fits any...HKP-22512-BNow: $21.95Was: $29.95 -
On Sale
Special Weapons SP10 Lower UMP-Style - Rare
Special Weapons
Now: $399.95Was: $524.95Special Weapons SP10 Lower - UMP-Style - Rare UMP-style lower produced for the SP10 platform. Designed to replicate the UMP profile for SP10 builds. Hard-to-find component for SP10 projects and restorations. Compatible With: Special Weapons SP10 THIS...HKP-99331Now: $399.95Was: $524.95 -
On Sale
HK MP5 Trigger Housing - 3 Position - Burst - Push Pin - BLEMISHED
H&K Heckler & Koch
Now: $199.95Was: $224.95Heckler and Koch 3 Position Burst Trigger Housing - Push Pin for your HK MP5 - BLEMISHED ONLY 3 UNIT AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR...HKP-99421Now: $199.95Was: $224.95 -
On Sale
HK MP5 Trigger Housing - 4 Position Pictogram 0,1,3,F - Push Pin - BLEMISHED
H&K Heckler & Koch
Now: $154.95Was: $229.95Heckler and Koch HK MP5 Trigger Housing - 4 Position Pictogram 0,1,3,F - Push Pin - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART...HKP-02240-BNow: $154.95Was: $229.95 -
On Sale
HK MP5, HK93 Stock - MOE SL - BLEMISHED
Magpul
Now: $128.95Was: $189.95HK MP5, HK93 Stock - MOE SL - BLEMISHED INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Magpul MOE SL-K MP5, HK94, HK93...HKP-20490-BNow: $128.95Was: $189.95 -
On Sale
UZI Magazine Block Plug - 9mm - 32 to 10 Round Conversion - BLEMISHED
HKP HK Parts
Now: $3.95Was: $6.95UZI Magazine Block Plug - 9mm - 32 to 10 Round Conversion - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. UZI mag block plug. This is designed to...HKP-18684-BNow: $3.95Was: $6.95 -
On Sale
HK VP40 Holster - Warrior - OWB - LH - BLEMISHED
Comp-Tac
Now: $32.95Was: $49.95Comp-Tac Kydex Warrior Left Hand Holster For HK VP40 - BLEMISHED OPEN PACKAGE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Kydex holster manufactured by...HKP-99411Now: $32.95Was: $49.95