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
B&T Unigrip for TL99
B&T Brugger & Thomet
Now: $143.95Was: $159.95B&T Unigrip for TL99 This for grip is made to be used with the MP5 handguard with integrated tactical light (BT-400971-4). It mounts around the housing of the light in the handguard. This is a good options for those that already have the TL99...HKP-21228Now: $143.95Was: $159.95 -
On Sale
Bolt Knob - Grenade - Titanium
Tactical Precision MFG
Now: $24.95Was: $48.99TPM - Grenade Bolt Knob - Titanium TPM grenade bolt knobs are a great way to dress up any rifle. It has a great feel and looks fantastic. Can also fit any 5/16x24 threaded bolt handle. Grenade Bolt Knob - Titanium Dimensions: 1.90" x...HKP-20776Now: $24.95Was: $48.99 -
On Sale
B&T TP9, MP9, TP380 Stock Conversion Kit
B&T Brugger & Thomet
Now: $132.95Was: $147.95Stock Conversion Kit - TP9, MP9, TP380 Converts B&T's telescopic brace into a telescopic stock. Compatible with B&T part number BT-20522 for TP9, TP380. Compatible With: B&T TP9, MP9 B&T TP380HKP-19128Now: $132.95Was: $147.95 -
On Sale
Aimpoint T1 Optic Mount - Lower 1/3 Co-Witness
AIM
Now: $26.95Was: $29.99Aimpoint - T1 Mount - Lower 1/3 Co-Witness Features a machined recoil lug for consistent, repeatable mounting. Features: 6061 T6 aluminum Black anodized Machined recoil lug Compatible With: Aimpoint T1 / H1 Series opticsHKP-19335Now: $26.95Was: $29.99 -
On Sale
HK P30 Stand Off Device
HKP HK Parts
Now: $68.95Was: $109.95Stand Off Device - HK P30 The HK Parts P30 standoff is designed to keep the slide in battery to allow discharge when the firearm is pressed against or comes into contact with an object. It is an excellent self-defense addition. The standoff device slides...HKP-19168Now: $68.95Was: $109.95 -
Out Of Stock
HK G36C Barrel - 5.56 / .223 - 8.98"
HKP HK Parts
$499.95HKP HK G36C Barrel Brand new HK G36C barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36C barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the SL8/G36 style...HKP-18195$499.95 -
On Sale
B&T TP9, MP9 Brass Catcher - Quick Detach- Polymer
B&T Brugger & Thomet
Now: $167.95Was: $197.95B&T TP9/MP9 Polymer Quick Detach Brass Catcher This is the new style brass catcher that only fits new style TP9 top covers. Specifications: Color: Black Height max: 102.2 mm Length max: 122 mm Material: Polymer Mounting: Weapon must be...HKP-17286Now: $167.95Was: $197.95 -
On Sale
B&T TP9, MP9, APC Magazine - 9mm - 20 Round - Translucent
B&T Brugger & Thomet
Now: $54.95Was: $65.00B&T 20 Round 9mm Magazine - Translucent Swiss B&T manufactured 20-round magazine for the 9mm TP9, MP9, and APC. Compatible With: B&T MP9, TP9 B&T APC9 B&T SPC9 B&T GHM9 B&T KH9 ***NOT...HKP-17303Now: $54.95Was: $65.00 -
On Sale
HK MP5 Facemount KeyMount - KeyMicro - 360 1/2x28
JMAC Customs
Now: $88.95Was: $104.95JMAC Customs 360 1/2x28 Facemount KeyMount (KeyMicro) With the advancement of suppressor technology and the popularity of the KeyMount mounting system, the 360-28F was designed to allow users to install a KeyMount compatible muzzle device on their...HKP-20141Now: $88.95Was: $104.95 -
HK MP5, HK94, HK53, Slimline Handguard - Used - Factory
H&K Heckler & Koch
$199.95H&K HK MP5, 94, 53 Factory Slimline Forearm - Rare - Like new Like new and rare Heckler & Koch Genuine HK94/MP5 slimline forearm date coded, in excellent condition. This rare and sought-after part fits all MP5, 94 & MP5 40/10 and HK53...HKP-01720$199.95 -
On Sale
HK416, MR556, AR-15 Vertical Grip - MOE K2
Magpul
Now: $18.95Was: $22.95Magpul MOE K2 AR Grip for HK416, MR556 and AR-15 Platforms Magpul MOE K2 AR grip for HK416, MR556, and M4 pattern AR-15 platforms. Designed with a more vertical grip angle than standard A2 grips, the K2 improves control and comfort on shorter length of...HKP-19567-MNow: $18.95Was: $22.95 -
HK VP9, VP40 Backstrap - Large - FDE
H&K Heckler & Koch
$29.95H&K VP9, VP40 Backstrap - Large - FDE New HK German manufacture Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 KHKP-18180$29.95