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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HK91, G3 Cocking Handle - Green Rubberized - Surplus
H&K Heckler & Koch
$8.95HK German HK G3 & HK 91 Older Style HK Green Cocking Handle Used green handled German military surplus cocking handle. No longer made or offered by HK. A genuine Heckler and Koch part. Compatible With: HK 91 HK G3 PTR-91 HK 51 HK PSG-1 HK MSG-90 HK...$8.95 -
Out Of Stock
HK MP5, MP5K Optic Mount - 138mm - Low Profile - Extended Picatinny Rail
B&T Brugger & Thomet
$159.95B&T MP5, MP5K Low Profile Picatinny Mount Specifications: Color: Black Height max: 23.5 mm Length max: 138 mm Length of top rail: 138 mm Material: Aluminum NATO Accessory Rails: 1 weaver type style rail Part number: BT-21241 Treatment:...$159.95 -
HK MP5, SP5K, HK33, HK53, HK93 Optic Mount - Raised - Aimpoint ACRO
HKP HK Parts
$119.95HKP - HK MP5 Optic Mount - ACRO - Raised HK Parts brings you one of the most requested optic mounts for the MP5/MP5K platform. A raised design with a direct Aimpoint ACRO mounting interface. Our ACRO mounts provide an unobstructed view of the factory HK...$119.95 -
Out Of Stock
HK MP5SD Sealing Ring
H&K Heckler & Koch
$29.95H&K MP5SD Sealing Ring Each HK MP5SD sealing ring is the sealing gasket that seals the SD suppressor against the trunnion on factory HK MP5SD's or factory correct SD conversions. This is a typical wear item as they do degrade and crack. Compatible...$29.95 -
HK Parts Decal Sticker - Classic Style
HKP HK Parts
$1.50HK Parts Decal Sticker - Classic Style Perfect addition to your safe, vehicle, motorcycle, boat, or just about any place. Available in black and white.$1.50 -
Bore Boss Pull-Through Bore Cleaner - 9mm MP5, SP5K
Real Avid
$10.95Real Avid Bore Boss Pull-Through Bore Cleaner - 9mm From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable with...$10.95 -
HK MP5, HK91, G3, HK93, HK94, Clones Heckfire 2-Stage Trigger
$399.95Heckfire trigger for MP-5, HK 91/93/94, G3, Clones 2-stage trigger with around 5lb total pull. Drop-in to all lowers. The updated selector levers work for all lowers (you no longer need to tell us if it is an SEF or an AMBI lower) and they cover...$399.95 -
HK Retaining Ring - Flash Hider
H&K Heckler & Koch
$1.49HK Flash Hider Retaining Ring Brand new HK German manufacture. HK flash hider, muzzle break retaining ring. This item is the ring that fits inside the flash hider that indexes with the splines of the HK barrel to provide a positive lockup of...$1.49 -
HK Rear Sight Bearing
H&K Heckler & Koch
$1.99H&K Rear Sight Bearing Factory HK Part for all rear sight assemblies. This item is required for any HK diopter rear sight assemblies.$1.99 -
HK416, HK417, MR556, MR762 Rear Diopter Sight
H&K Heckler & Koch
$226.95H&K HK MR556/MR762/416/417 Rear Diopter Sight Factory correct rear diopter sight for 416/417 and MR platforms. This sight can be paired with a fixed front sight or folding front sight. Compatible With: HK MR556 HK416 HK MR762 HK417$226.95 -
HK21, HK11 Barrel - 7.62 / .308 - 17.7"
RCM
$684.95RCM HK21 Barrel RCM HK21 barrels are crafted from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance durable finish. These barrels are the most cost-effective option to finish your HK21/FMP or HK11 build as the original barrels are rare...$684.95 -
HK MP5K Handguard with Handstop - M-LOK Compatible
HKP HK Parts
$39.95MP5K - M-LOK Compatible Forearm with Handstop - USA Each forearm will fit the MP5K style platforms. Dual M-LOK mounting slots allow you to quickly mount lights, lasers, or a pressure switch. As an added bonus this item counts as a US made part toward...$39.95