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 USP Buffer Spring Retainer
H&K Heckler & Koch
$6.95H&K HK USP Buffer Spring Retainer Compatible With: HK USP 45 HK USP 40 HK USP 9mmHKP-16232$6.95 -
Out Of Stock
HK USP, USP Compact Disconnector
H&K Heckler & Koch
$9.95HK USP & USPC Disconnector Compatible With: USP 45 USP 40 USP 9mm USPC 45 USPC 40 USCP 9mHKP-02685$9.95 -
HK MR556, MR762 Buttstock Release Lever Insert
H&K Heckler & Koch
$26.95H&K HK MR556/MR762 Buttstock Release Lever Insert Compatible With: HK MR556 HK MR762HKP-16620$26.95 -
Out Of Stock
HK416 Gas Block - Vented
H&K Heckler & Koch
$249.95Heckler and Koch German HK416 and HK MR556 14.5" & 16.5" & 20" Gas Block Complete This is the factory-correct gas block with the ambi sling attachment points, as well as the bayonet lug milled into the gas block. Perfect for those who want...HKP-01544$249.95 -
Out Of Stock
$139.95 -
HK G36, SL8 Optic Mount with Emergency Sights
B&T Brugger & Thomet
$296.95B&T Long Mounting Rail NAR for HK G36/G36K, with Emergency Sight Specifications: Color: Black Height max: 41.5 mm Length max: 483.2 mm Length of top rail: 306 mm + 113 mm Material: Aluminum & steel NATO Accessory Rails: 2 Part number:...HKP-16874$296.95 -
HK UMP Magazine Spring - 9mm - 30 Round
H&K Heckler & Koch
$14.95H&K UMP (9mm) Magazine Spring - 30 Round Perfect for spares and to have on hand as these are a consumable part.HKP-16563$14.95 -
HK USC Magazine Follower - .45 ACP
H&K Heckler & Koch
$12.95H&K USC (.45 ACP) Magazine Follower New HK German USC 10 Round magazine follower.HKP-16346$12.95 -
HK Ump, USC Handstop Screw - Cylindrical
H&K Heckler & Koch
$9.95HK German Hand Stop Screw #21 Cylindrical screw, handstop 5 x 16 mm 219414HKP-16736$9.95 -
HK MSG90 Locking Roller -4 - 7.96mm Set -Titanium
H&K Heckler & Koch
$329.95MSG90 (7.62x51/.308) -4 Rollers 7.96mm Set -Titanium Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size rollers...HKP-02451$329.95 -
Out Of Stock
HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 15x1 - Match
PTR
$199.95PTR HK G3/91 (7.62x51/.308) Match Grade Barrel - Threaded 15x1 Each barrel is current PTR production and has the proper number and depth of flutes for optimum functionality. This barrel is a medium contour barrel that is larger in diameter than a...HKP-00873$199.95 -
Out Of Stock
HK PSG1, MSG90 Handguard
H&K Heckler & Koch
$0.00HK German PSG1, MSG90 Forearm New HK German & Hard To Find. Perfect For The PSG1, MSG90 Conversions. We have many other PSG1 items available such as the PSG1 cocking tube, trigger group, stock etc.The PSG1 forearm will only work with the addition of...HKP-00529$0.00