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
HK416A5, MR556 Barrel - 5.56 / .223 - 11" - USED
H&K Heckler & Koch
Now: $339.95Was: $424.95HK416A5, MR556 Barrel - 5.56 / .223 - 11" - USED ONLY 3 UNITS AVAILABLE - VARYING CONDITION SHOWN - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Factory German 11" HK416A5, MR556 barrel. Cold...HKP-21932-USEDNow: $339.95Was: $424.95 -
On Sale
HK MP7 Magazine - 4.6x30mm - 40 Round - USED
H&K Heckler & Koch
Now: $66.95Was: $78.95HK MP7 Magazine - 4.6x30mm - 40 Round - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. New Factory German. For use with all the 4.6 X 30mm HK MP7A1 &...HKP-00364-USEDNow: $66.95Was: $78.95 -
B&T APC9 Telescopic Stock Screw – M3x8mm
B&T Brugger & Thomet
$1.67B&T APC9 Telescopic Stock Screw – M3x8mm – Factory Swiss Replacement SOLD INDIVIDUALLY Factory Swiss B&T M3x8mm machine screw used in the APC9 telescopic stock assembly. This metric fastener secures key telescopic stock components...HKP-99429$1.67 -
On Sale
HK MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin - USED
H&K Heckler & Koch
Now: $229.95Was: $349.95HK MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin - USED ONLY 2 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL...HKP-17143-BNow: $229.95Was: $349.95 -
HK91, G3 A2 Stock - Enhanced Heavy Buffer - Like New - Rare
Other
$274.95Rare Saudi Arabian Contract HK91, G3 A2 Stock with HKP Enhanced Heavy Buffer - Tan - Like New VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Original Saudi Arabian contract G3 A2 fixed stock in tan paired with the HKP enhanced heavy buffer for improved...HKP-99420$274.95 -
Out Of StockOn Sale
Hensoldt Wetzlar PZF44 Scope - German - Like New
Hensoldt
Now: $144.95Was: $199.95German Bundeswehr Pzf 44 – 2.5× Panzerfaust scope. Optical scope for a West German anti-tank rocket launcher. Includes carrying case, cleaning brush, cloth, and adapters. Compatible With: PZF 44HKP-99417Now: $144.95Was: $199.95 -
On Sale
HK MP5 Handguard - M-LOK - Extended Length - RAL 8K - BLEMISHED
UTG PRO
Now: $146.95Was: $197.95HK MP5 Handguard - M-LOK - Extended Length - RAL 8K - BLEMISHED ISTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The UTG PRO...HKP-21673-R8K-BNow: $146.95Was: $197.95 -
On Sale
HK MP5K/SP89/SP5K 9mm HK Marked Folding Stock - GUNSMITH SPECIAL
H&K Heckler & Koch
Now: $189.95Was: $399.95HK MP5K/SP89/SP5K 9mm HK Marked Folding Stock - GUNSMITH SPECIAL THIS PART IS NOT ELIGIBLE FOR RETURN Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith. This is the original "HK"...HKP-00391-BL-BNow: $189.95Was: $399.95 -
On Sale
HKP HK P2000SK Compensator - BLEMISHED
HKP HK Parts
Now: $117.95Was: $189.95HKP HK P2000SK Compensator - 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. The HK Parts P2000SK Compensator will add a sleek...HKP-20885-BNow: $117.95Was: $189.95 -
HK G36, UMP Handuard Handstop
OMEGA
$29.95HK UMP and G36 Handstop HK G36 hand stop kit. Complete with locking block and screw. Fits any G36 handguard without the need of rail segment. Compatible With: All G36 Models HK SL8 HK UMP HK USCHKP-22512$29.95 -
On Sale
HK CC9 Extended Base Plate with Finger Rest - Black - BLEMISHED
HKP HK Parts
Now: $37.95Was: $69.95HK CC9 Extended Base Plate with Finger Rest - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This extended base plate gives your CC9 magazine...HKP-22275-BL-BNow: $37.95Was: $69.95 -
On Sale
HK SL8, G36, Sight Rail - Incomplete - BLEMISHED
H&K Heckler & Koch
Now: $389.95Was: $598.95Heckler and Koch HK SL8, G36, Sight Rail - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALY DOES NOT INCLUDE FRONT AND REAR SIGHTS MISSING SCREWS - NO HARDWARE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT...HKP-17718-IN-BNow: $389.95Was: $598.95