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
HK MP5, MP5K Magazine Follower - 9mm - RED
HKP HK Parts
Now: $6.95Was: $8.95HKP MP5 & MP5K 9MM Magazine Follower - RED Teflon infused glass filled polymer red colored follower that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the follower to a red follower. A great training or...HKP-18302Now: $6.95Was: $8.95 -
HK MP5, HK94 A3 Retractable Buttstock - Gen 2
H&K Heckler & Koch
$939.95HK94, MP5 Stock - A3 - Gen 2 The original Navy-style German HK MP5 A3 stock is no longer in production and have been replaced with the MP5 F-style stock. Each offering is the second generation MP5 A3 Navy-style version with the polymer backplate and...HKP-00167$939.95 -
On Sale
HK Roller +9 - New - 8.09mm
HKP HK Parts
Now: $6.95Was: $8.99Roller +9 - New - 8.09mm HK Parts Standard (8.09 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19438Now: $6.95Was: $8.99 -
HK417, MR762 Magazine - 10 Round
H&K Heckler & Koch
$59.00Heckler and Koch HK MR762, HK417 10 Round Magazine - German HK Genuine HK German 10 round MR762 magazine. Compatible With: MR 762 HK 417 HK G28HKP-02590$59.00 -
HK P2000SK Magazine - 10 Round - 9mm
H&K Heckler & Koch
$58.95HK P2000 SK 9mm - 10 Round Magazine With Finger Rest HK German manufacture and factory-fresh production. Each factory HK all-steel-bodied magazine holds 10 rounds of 9mm ammunition. Compatible With: HK P2000SKHKP-00308-M$58.95 -
On Sale
HK21, FMP21 T-Rail Set
HKP HK Parts
Now: $95.95Was: $119.95HKP HK 21 (7.62x51/.308) Factory Style T-Rail Set HKP HK21 US made rails for all HK21 and FMP21 builds. Our steel T-rails incorporate an updated radius to address a weak link in previous iterations. Compatible With: HK21 FMP21HKP-21457Now: $95.95Was: $119.95 -
HK VP9SK, P30SK Magazine - 13 Round - 9mm
H&K Heckler & Koch
$49.00HK VP9SK & P30SK 9mm - 13 Round Magazine New German HK manufacture 13 Round 9mm P30SK, VP9SK magazine. Compatible With: P30 SK HK VP9SKHKP-18495$49.00 -
HK VP9 Magazine Spring - 17 Round
H&K Heckler & Koch
$8.95Magazine Spring for 17 Round Magazine - HK VP9, VP9L, VP9 OR This magazine spring fits the VP9 17 round magazines. A must-have replacement item as magazine springs should be replaced on a regular basis as this is a consumable part and is prone to...HKP-19323$8.95 -
HK MP5, SP5 Rear Sight Set, Complete
H&K Heckler & Koch
$79.95MP5, HK94 and SP5K Rear Sight Set Complete - US and Germany Each rear sight set includes the entire rear sight assembly and all the mounting hardware for the complete MP5 rear sight assembly. All parts are German HK manufacture with the exception of the...HKP-19365$79.95 -
On Sale
HK MP5 Extractor Spring - .40 S&W, 10mm, .357 SIG
USA
Now: $7.95Was: $9.95US Made Extractor Spring for HK MP5 .40 S&W, 10mm, and .357 The extractor spring is the most common wear item on an MP5 and a must-have spare and replacement part. HK Germany no longer makes the MP5 40,10 extractor spring, and they are no longer...HKP-00409Now: $7.95Was: $9.95 -
On Sale
HK MP5K, AP5-P Vertical Foregrip - M-LOK- BLEMISHED
MKE
Now: $28.95Was: $44.95HK MP5K, AP5-P Vertical Foregrip M-LOK - BLEMISHED POLYMER BLEMISHES IN THE M-LOK SLOTS. VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED...HKP-22471-BNow: $28.95Was: $44.95 -
HK Rifle Cleaning Kit - Universal - Used
H&K Heckler & Koch
$4.95Original German Army Issue HK91, G3, PTR Cleaning Kit - Surplus Includes: Brass brush Oil brush Oil tube Hand cleaning brush Pull chain Compatible With: HK91, G3, PTR, C308, CETME HK33, HK33, HK93 HK MP5, MP5SD, HK94 HK MP5K, SP89 HK PSG1, MSG90 HK...HKP-15612$4.95