HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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HK MR762 A4 Upper Receiver Kit - 13"
H&K Heckler & Koch
$2,499.95HK MR762 A4 Upper Receiver Kit - 13" The MR762 A4 kit contains a complete upper receiver and barrel assembly. The closed system design significantly reduces malfunctions typically associated with direct-impingement gas systems, as hot carbon fouling and...HKP-22399$2,499.95 -
On Sale
HK MP5, AP5 End Cap - Complete
MKE
Now: $64.95Was: $89.95MKE HK MP5/AP5 End Cap Complete Replacement end cap made by MKE on HK tooling. This robust all-steel end cap is a superior upgrade from the standard polymer options. It not only features an integrated H buffer for enhanced performance but also includes a...HKP-22258Now: $64.95Was: $89.95 -
On Sale
HK MP5K Trunnion - Gunsmith Special
USA
Now: $24.95Was: $54.95HK MP5K Trunnion - Gunsmith Special US made HK MP5 trunnions sold as-is. Will require work before being functional. We recommend the work be performed by a professional gunsmith. The condition will vary from part-to-part vs. the pictured unit. Compatible...HKP-99090Now: $24.95Was: $54.95 -
HK UMP Flash Hider - Birdcage Style - 5/8x24
HKP HK Parts
$49.95HKP HK UMP Flash Hider - Birdcage Style - 5/8x24 We are pleased to present the HKP UMP birdcage flash hider, designed specifically for our UMP 45 parts kit. This exceptional accessory not only protects exposed threads but also enhances the overall...HKP-21579$49.95 -
B&T Unigrip for TL99
B&T Brugger & Thomet
$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-21228$159.95 -
On Sale
Bolt Knob - Grenade – Bronze
Tactical Precision MFG
Now: $19.95Was: $37.99TPM Grenade Bolt Knob – Bronze These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle. Specifications: Dimensions: 1.90″ x 7/8″ x 7/8″ Weight: 2 oz. Threading: 5/16×24HKP-20909Now: $19.95Was: $37.99 -
Out Of Stock
HK UMP Magazine - .40 ACP - 30 Round - LEO Marked
H&K Heckler & Koch
$99.95Rare Surplus 30 Round Magazine - LEO Marked - Windowless - UMP .40 S/W Rare UMP .40 windowless magazine with LEO markings. Highly unique magazines as these were "early production" magazines that were used before they switched over to the windowed UMP...HKP-20749$99.95 -
B&T Unigrip Fixed With Storage Compartment - FDE
B&T Brugger & Thomet
$69.95B&T Vertical Grip - Fixed Style With Storage Compartment - TAN Swiss made B&T vertical for-end grip for picatinny. Made of tan polymer and includes a water tight storage compartment in the bottom of the grip. Will fit all mil-spec picatinny rails...HKP-18042$69.95 -
HK MP5 Facemount KeyMount - KeyMicro - 360 1/2x28
JMAC Customs
$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-20141$104.95 -
HK MP5, HK94 Trigger Group - Flat Trigger - 3 Position - Semi-Only - 5 US Made Compliant Parts
$649.95Trigger Group - Semi-Only - 3 Position - 5 US Made Compliant Parts with Flat Trigger - MP5/94 Ambidextrous Trigger Group - Semi Auto - 5 U.S Parts Includes: Housing Hammer Sear Flat trigger Trigger box Push pin housing if c/p is needed please add the...HKP-19939$649.95 -
HK91, G3, PTR Clubfoot Stock - .308 Rifles - Green
Michaels Machines
$299.95US Michaels Machines Clubfoot Stock for HK G3, HK91, PTR-91 and Clones HK clubfoot stock comes fully assembled with both US and German HK parts. Includes: HK21E Clubfoot central stock section (counts as one US compliant part) HK heavy rubber buttpad US...HKP-19667$299.95 -
HK416, MR556, AR-15 Stock - MOE - MIL Spec
Magpul
$44.95Magpul MOE Stock MIL SPEC Magpul Industries MOE Carbine Black Stock Complete - MIL Spec Compatible With: MR556 & HK 416 equipped with mil-spec buffer tubes AR-15 platforms with mil-spec buffer tubesHKP-19393$44.95