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 Stock
HK MP5K, SP89, SP5K Stock or Brace Adapter - ACE Style
HKP HK Parts
$54.95ACE Adapter for MP5K, SP89 & SP5K Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter...HKP-18505$54.95 -
HK MP5, MP5K Optic Mount - 9mm - Raised - Picatinny
MI Midwest Industries
$119.95Midwest Industries HK MP5, MP5K Tall Optic Mount - 1913 Picatinny Rail Tall, clamp-on optic mount for HK MP5 and MP5K pattern firearms, giving a higher, more upright sightline while still allowing use of the factory diopter sights. Ideal for mounting...HKP-22397$119.95 -
HK G3, HK33, HK93 Bayonet with Scabbard - NOS
H&K Heckler & Koch
$227.95HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet. Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93HKP-22366$227.95 -
HK416, MR556, HK417, MR762 Selector Lever - Ambi - Left
H&K Heckler & Koch
$11.95Heckler & Koch HK416 Ambi Safety Selector Lever Factory HK polymer left side selector lever. Compatible With: HK416 A1/A3 HK MR556 A1 HK417 HK MR762 A1HKP-22310$11.95 -
On Sale
Century Arms AP51 Retractable Stock - A3 - BLEMISHED
MKE
Now: $327.95Was: $449.95MKE Century Arms AP51 A3 Retractable Stock - BLEMISHED INSTALLATION MARKS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Factory new MKE stock professionally...HKP-21926-BNow: $327.95Was: $449.95 -
HK416, MR556 Flash Hider - 3 Prong - Threaded 1/2x28
B&T Brugger & Thomet
$100.00Brugger and Thomet Assault 3 Prong Flash Hider - 1/2x28 3-Prong muzzle device with 1/2x28 threading, designed to reduce muzzle flash and improve shooting performance. Features: High performance open tine hybrid Precision machined, DLC...HKP-22216$100.00 -
HK91, G3 Front Sight Tower - SURPLUS
H&K Heckler & Koch
$16.95H&K G3/91 Front Sight Tower - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K steel front sight tower for the G3 & HK91. Provides the front sight post assembly for target acquisition and secures the...HKP-22158$16.95 -
HK416 A5, MR556 A3 Barrel Nut
Nefarious Arms
$39.95Nefarious Arms HK MR556 A3/416 A5 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option. Meticulously crafted in the US to the highest quality standards...HKP-22082$39.95 -
HK MP5K Adapter - Folding Stock
B&T Brugger & Thomet
$160.00B&T HK MP5K Adapter for Folding Stock Upgrade your MP5K platform with precision Swiss engineering. The B&T (Brügger & Thomet) HK MP5K Adapter for Folding Stock is designed to provide a secure and reliable mounting interface for...HKP-22081$160.00 -
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