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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HK416, MR556 - Spring - Enhanced Buffer
H&K Heckler & Koch
$19.95Enhanced HK German MR556 & 416 Buffer Spring The HK MR556/416 buffer spring will also work with other AR-15 and M-16 rifles. It is a high-wear item and a must-have replacement part. Compatible With: HK MR556 HK416 HK416 A5 HK M27 AR15, M4 & M16$19.95 -
HK MP5K, SP89, SP5K Vertical Foregrip VFG - M-LOK Rail
H&K Heckler & Koch
$114.95H&K MP5K Vertical Grip VFG M-LOK Rail New VFG for the MP5K platform is now M-LOK compatible. The perfect combination to install lights or lasers. M-LOK slots are integrated on both sides to make it a true ambidextrous vertical grip. Compatible...$114.95 -
HK Armorer's Tool Kit
HKP HK Parts
$67.95HKP Armorer's Tool Kit Includes: HK Parts Armorers Puck Punch Bench Block Tool 8 Piece German Rennsteig punch set 20 Piece German Feeler gauge set$67.95 -
HK UMP Micro Comp - Threaded .578x28 Right Hand
HKP HK Parts
$29.95HKP .45 ACP Micro Comp - Threaded .578x28 RH The HK Parts micro comp & thread protector is designed to be lightweight, and functional as both a compensator and thread protector. The HK Parts micro comp easily attaches to the end of any factory spec ...$29.95 -
HK MP5K, SP89, SP5K Side -Folding Brace - 9mm
SB Tactical
$249.95HK MP5K, SP89, SP5K & Clone - Side Folding Pistol Stabilizing Brace MP5K, SP5K, Zenith Z5P, Z-5K Folding Stabilizing Brace System. These are the last remaining units with an aluminum folding adapter as SB tactical has now switched over to a polymer...$249.95 -
HK UMP, B&T APC Stock - Folding
H&K Heckler & Koch
$138.95HK German UMP Folding Buttstock Brand new German HK folding stock. This is a required part for the USC-UMP Conversion using the (stock block B). All UMP folding stocks come with an HK date code. Compatible With: HK UMP .45 HK UMP .40 HK UMP 9mm HK...$138.95 -
HK MP5 40/10 30 Round Magazine
HKP HK Parts
$49.95MP5 40/10 30 Round Magazine - US HKP, US made 30 round magazine for MP5's chambered in .40 S&W, 10mm, .357 Sig, and 9x25 Dillon. Each magazine counts as 3 US made components for satisfying 922r compliance. Compatible With: MP5 .40 Cal MP5...$49.95 -
HK416, MR556 Slim Line Buttstock
H&K Heckler & Koch
$97.95H&K HK MR556/416 Slim Line Retractable Stock New from HK Germany the slim line retractable stock fits all commercial & mil-spec AR-15/M16 buffer tubes. Marked with the HK logo and issued on specialized HK 416, MR556 rifles. Compatible...$97.95 -
HK MP5, MP5K Optic Mount - Raised - Picatinny Rail
HKP HK Parts
$109.95HKP HK MP5 Picatinny Rail Optic Mount HK Parts Picatinny style optic mount for the MP5 or MP5K. Quickly mount any Picatinny optic to your HK while retaining a full view of the factory sights. Available exclusively at HK Parts. Compatible With: HK...$109.95 -
Out Of Stock
HK MP5, MP5K Magazine Clamp - Dual - 9mm - Bundle
H&K Heckler & Koch
$299.95HK German MP5 & SP5 Or MP5K & SP5K 9mm Mag Clamp Bundle Allows the user to clamp 2 X MP5 9mm 30 round magazines together for ease of use & safety by keeping 2 magazines usable & at your disposal. A Heckler & Koch German made genuine...$299.95 -
AR, M4 Magazine - TMAG - 30 Round
Magpul
$24.95Magpul AR/M4 30 Round TMAG Magazine The TMAG 30 AR/M4 GEN M3 is a highly reliable, translucent, 30-round magazine for STANAG-compatible weapons chambered in 5.56x45 NATO/.223 Remington. Molded from a durable translucent material with an olive drab hue,...$24.95 -
KCI 10 Round HK MP5, MP5K - California Compliant Magazine
KCI
$58.95California Complaint Magazine 10-30 - MP5, MP5K - GEN 2 - KCI USA This California compliant magazine has a 10 round block pre-installed which converts a factory 30 round magazine into a 10 round magazine. This is the best option to stay...$58.95