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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HK416, MR556 DMR KeyMod Extended 15" Handguard
HKP HK Parts
$249.95HKP HK MR556/416 DMR KeyMod Extended 15" HandguardHKP-18020$249.95 -
Out Of Stock
HK21 Carry Handle Axle Elbow Spring
HKP HK Parts
$11.95HK21 & 21E Carry Handle Axle Elbow Spring This part is needed and is used in conjunction with the actual carry handle, axle, axle spring, and (2) E-clips. This is the elbow spring portion of the...HKP-00578$11.95 -
Out Of Stock
HK21E, HK23E Cocking Handle - Extended
H&K Heckler & Koch
$0.00HK21E, HK23E & HK11E, 13E Factory German Extended Cocking Handle This cocking handle is for the HK 21E, HK 23E guns only and will not work in HK91, G3 & PTR rifles.HKP-00580$0.00 -
On Sale
HK91, G3 Trigger Group - 4 Position 0,1,3,F - Safe Semi Only
H&K Heckler & Koch
Now: $1,234.95Was: $1,999.95HK G3 & HK 91 4 Position (0,1,3, F) Burst Trigger Group Complete - New Factory German The look and feel of the original 4-position, push-pin trigger group but with a semi-auto trigger pack. This...HKP-01663Now: $1,234.95Was: $1,999.95 -
On Sale
HK33, HK53, HK93 Trigger Pack - 0,1 - Ambidextrous
HKP HK Parts
Now: $341.96Was: $379.95HKP HK 93/53/33 (5.56 / .223) Ambidextrous 0,1 Trigger Pack A lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the...HKP-17233Now: $341.96Was: $379.95 -
HK MP5SD Locking Piece - 110 Degree - .40 S&W, 10mm
HKP HK Parts
$49.95MP5 40 & MP5 10mm SD 110 Degree Locking Piece - USA Made in the USA from an enhanced material and heat treated to factory specifications. Each US made MP5 40/10 SD 110 degree locking price is...HKP-18274$49.95 -
On Sale
HK MP5N Barrel - 9mm - 8.85" - Threaded 1/2x32 with 3 Lug
RCM
Now: $125.97Was: $179.95RCM HK MP5N 9mm Barrel - Threaded 1/2x32 - 3-Lug This MP5N barrel delivers exceptional value, crafted from premium Cold Hammer Forged Steel and treated with a durable nitride process. It easily...HKP-16967Now: $125.97Was: $179.95 -
Out Of Stock
HK MP5, MP5K 9mm, Ambidextrous Navy Trigger Pack
H&K Heckler & Koch
$0.00H&K MP5/K 9mm Ambidextrous Navy Style Trigger Pack Designed for HK MP5 and MP5K 9mm ambidextrous housings and selector levers, this trigger pack features a Navy-style configuration with three...HKP-16971$0.00 -
On Sale
HK MP5 Folding Stock - 3 Position Adjustable
B&T Brugger & Thomet
Now: $350.96Was: $389.95B&T Brugger & Thomet 3 Position Adjustable Folding Stock for HK MP5 Swiss made B&T folding and length adjustable stock for the HK MP5. This is a military grade stock as supplied by B&T to military...HKP-18100Now: $350.96Was: $389.95 -
On Sale
HK G36, G36C, G36K Magwell - FDE - BLEMISHED
HKP HK Parts
Now: $21.71Was: $39.95HK G36, G36C, G36K Magwell - FDE - BLEMISHED SHADE OF COLOR MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...HKP-19300-FDE-BNow: $21.71Was: $39.95 -
Out Of Stock
HK MP7 Back Plate - Complete
H&K Heckler & Koch
$67.95HK MP7 Back Plate - Complete OEM complete back plate assembly for the HK MP7. Direct factory replacement back plate for maintaining or rebuilding your MP7 platform using original HK parts.HKP-22430$67.95 -
HK416, MR556 QD Handguard - A4 Style - 10"
H&K Heckler & Koch
$497.95H&K HK416, MR556 A4 10" Quick Disconnect Handguard Factory HK A4 handguard featuring HK's A4 quick disconnect latch. Compatible with A1 and A4 rifles. Features: Quick disconnect latHKP-22426$497.95