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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Out Of StockOn Sale
Thread Protector - .45 ACP - 16x1 LH - Titanium
HKP HK Parts
Now: $11.95Was: $23.95HKP .45 ACP Titanium Thread Protector - Threaded 16x1 LH US-made thread protector for firearms chambered in .45 ACP, threaded 16x1 left hand. Compatible With: HK UMP, USC HK45, HK45T HK45C, HK45CT HK USP 45, USPT 45 HK USPC 45, USPCT 45 B&T...HKP-22036Now: $11.95Was: $23.95 -
HK21 FMP Complete Build Kit - Non Matching Numbers - 14.5" Barrel
HKP HK Parts
$3,124.97HK21 Complete Build Kit- Non Matching Numbers - 14.5" Barrel HK Parts bring you yet another exhaustive parts kit. Our HK21 kit includes everything you need to resurrect an iconic classic and hit the range for some belt-fed action. Paired with...HKP-21848$3,124.97 -
On Sale
HK MP5 .22LR Dual Folding Stabilizer w/ Adapter
HKP HK Parts / Strike Industries
$249.95 - $269.95Strike Industries HK MP5 .22LR Dual Folding Stabilizer w/ Adapter The Strike Industries Dual Folding Stabilizer paired with the HKP MP5 .22LR picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...HKP-21770-M$249.95 - $269.95 -
Picatinny Optic Mount - 39mm - Skeleton Mount - Aimpoint ACRO
B&T Brugger & Thomet
$150.00B&T 39mm QD Skeleton Mount for Aimpoint ACRO The B&T QD "Skeleton" mount for Aimpoint® Acro offers a 39mm elevated profile for improved sight alignment, ideal for night vision setups requiring clearance over forward-mounted IR devices. Its...HKP-21730-M$150.00 -
HKP HK 416 .22 LR A5 Flash Hider
HKP HK Parts
$59.95HKP HK 416 .22 LR A5 Flash Hider Our HK Parts A5 flash hider is a directly mounted upgrade that will enhance the appearance of your 416 .22LR build, perfect for those aiming to achieve an authentic A5 style. It comes with an O-ring for secure attachment,...HKP-21575$59.95 -
Out Of Stock
HK416, HK417, MR556, MR762 Eyelet Sling Adapter
HKP HK Parts
$89.95HK MR556, MR762 Eyelet Sling Adapter for Carrying Sling Eyelet sling adapter for HK MR556 and MR762 platforms. Designed to match RAL8000 and tanodized handguards, this adapter installs at the front of the rail to provide a secure sling attachment...HKP-21064-M$89.95 -
On Sale
Muzzle Brake - Titanium 3 Port .30 Cal
Tactical Precision MFG
Now: $42.95Was: $84.99TPM - Titanium 3 Port Muzzle Brake .30 Cal This radially ported muzzle brake is for Ruger American and many other lightweight mountain rifles. Features: Weight:0.67 oz Material: Grade 5 titanium Color: Black Threading: 5/8x24HKP-20777Now: $42.95Was: $84.99 -
Out Of StockOn Sale
HK SP5 Stock with HKP Adapter
HKP HK Parts / GSG9
Now: $189.95Was: $259.95GSG9 US Folding Stock with HK Parts Adapter for HK SP5 GSG9 US folding stock paired with an HK Parts SP5 adapter. Configured as a direct-fit stock assembly for the SP5 platform. Specifications: CNC machined adapter Solid billet aircraft-grade...HKP-20662Now: $189.95Was: $259.95 -
HK A3 Parkerized Stock Protective Cover
H&K Heckler & Koch
$19.95H&K A3 Parkerized Stock Protective Cover The perfect replacement part for all HK G3, HK33, and MP5 collapsible stocks issued with steel covers. Complete with locking spring clips welded in place.HKP-20649$19.95 -
HK91, G3 PTR Fixed Stock Complete with Enhanced Heavy Buffer - Surplus - Black
H&K Heckler & Koch
$349.95German G3, 91, PTR Stock complete with Enhanced Heavy Buffer - Surplus Used black German stock complete with Enhance DMR buffer installed. Ready to drop in on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts...HKP-20069$349.95 -
Out Of Stock
HK MP5 40/10 Semi-Auto 4 Position (0,1,2,F) Trigger Housing - Clipped and Pinned
H&K Heckler & Koch
$249.95H&K MP5 40/10 Semi-Auto 4 Position (0,1,2,F) Trigger Housing - Clipped & Pinned This factory German trigger housing is designed for the MP5 40/10 with a 4 position pictogram (0,1,2,F). It comes clipped and pinned for use in semi-auto units,...HKP-19924$249.95 -
HK416, MR556 Vertical Grip - AR - Moe K2
Magpul
$22.95Magpul Moe K2 AR Grip Similar in concept to the MOE-K, the MOE-K2 is a drop in upgrade for AR15/M4's that offers a more vertical grip angle, but in a full-size grip design. The steeper vertical grip angle is optimized for use on PDW (Personal Defense...HKP-19567$22.95