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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HK91, G3 Rear Sight
H&K Heckler & Koch
$28.95HK German Factory Rear Sight Assembly With Drum Assembly - New Each rear sight is a brand new, old stock genuine Heckler & Koch rear sight. Comes as shown. Mounting hardware is offered separately. Now out of production, it's rare and hard to find in...HKP-00361$28.95 -
On Sale
HK91, G3, PTR TWO Magazines and Rubberized Mag Pouch - 20 Round
H&K Heckler & Koch
Now: $29.95Was: $49.95H&K 91/G3/MSG90 (7.62x51/.308) 2-20 Round Aluminum Mags W/ Rubberized Mag Pouch 2 new/like new HK German 20 round aluminum magazine with green rubberized mag pouch bundle deal: 2 20 round aluminum magazines with new green rubberized mag pouch...HKP-15793Now: $29.95Was: $49.95 -
Out Of Stock
HK MP5K, SP5K, SP89 Barrel - 9mm - 5.85" - 3 Lug
RCM
$149.95RCM MP5K/SP5K/SP89 9mm Barrel - Non-Threaded 3-Lug This is the only US-made non-threaded barrel that uses the same steel and Cold Hammer Forged (CHF) process as Heckler & Koch. Precision-milled to the latest MP5KN PDW specifications with...HKP-01764$149.95 -
On Sale
HK MP5K, MKE AP5-P Trigger Housing - 9mm - Contoured - 0,1 - BLEMISHED
MKE
Now: $34.95Was: $49.95HK MP5K, MKE AP5-P Trigger Housing - 9mm - Contoured - 0,1 - 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 contoured trigger housing is...HKP-99396Now: $34.95Was: $49.95 -
HK VP9 Ghost Comp - Threaded 1/2x28
HKP HK Parts
$109.95HKP HK VP9 Ghost Comp - Minimalist - Threaded 1/2 x 28 The HKP Ghost Comp is a compact option for shooters that desire recoil mitigation like found on our full-size comps, but in a smaller package. Will install on any VP9 barrel threaded in 1/2 x 28...HKP-22213$109.95 -
HK VP9 EDC Magwell - Ultra Low Profile
HKP HK Parts
$59.95HKP HK VP9 EDC Magwell - Ultra Low Profile The smallest and most streamlined EDC magwell for the HK VP9, now featuring a fully functional funnel designed for rapid, seamless reloads. Crafted from durable aluminum and treated with type 3 hard coat...HKP-22190-M$59.95 -
HK P30 MOD 1 Compensator
HKP HK Parts
$179.95HKP HK P30 MOD 1 Compensator The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp includes both the rail...HKP-22163$179.95 -
HK416, MR556 Optic Mount - Protac 2.0 - Picatinny, MLOK
Streamlight
$169.99Streamlight Protac 2.0 Rail Mount for HK MR556 and HK416 The Streamlight ProTac 2.0 Rail Mount HP is a high-performance rail-mounted tactical light designed for long-gun applications. Producing 2,000 lumens and 100,000 candela, it delivers intense,...HKP-21939$169.99 -
Multitasker Twist - Pocket Multi-Tool
B&T Brugger & Thomet
$59.95B&T Multitasker Twist Pen-shaped multitool for weapon maintenance and optics/sight adjustments. CNC machined from 6063 T-6 aluminum, Type III Mil-spec Anodized. Features: Aimpoint Micro T1/T2 turret adjuster on rear cap Pocket clip/light-duty...HKP-21747$59.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Supersonic Boom Boom
Zenith
$43.95Zenith 30 Round HK MP5 Supersonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...HKP-20830$43.95 -
HK SL8, G36 Top Rail Screw
H&K Heckler & Koch
$14.95HK SL8 & G36 Top Rail Screw This rail screw is the standard length rail screw used for all SL8 and G36 top rails. With the exception of the dual and single option models. A must have part and an easy part to loose or strip. Grab yours to have...HKP-16390$14.95 -
HK91 SBA4 Pistol Stabilizing Brace and Adapter
SB Tactical
$319.95SB Tactical HK91 SBA4 Pistol Stabilizing Brace & Adapter Includes: G3, HK91 backplate & recoil assembly AR, M4 stock adapter Complete buffer assembly Castle nut SB Tactical Brace Features: Made in the USA Designed after the SBM4 5-position...HKP-19931$319.95