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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Picatinny Rail for HK Receivers - 15 Slot
DTAC Dakota Tactical
$74.95Dakota Tactical Picatinny Rail To Weld To The Receiver Mil-Spec all steel picatinny rail in the white, relief cut for HK receivers & made for mounting scopes and optics to HK builds. This unit easily welds to the top of your HK receiver. Compatible...HKP-17819$74.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote
MKE
$64.95HK MP5 30 Round Magazine - MKE - AP5 - Cerakote Colors These MKE 30 round magazines are the perfect addition or replacement for your AP5 or MP5. Constructed of heat-treated steel for lasting strength and consistent performance in harsh tactical...HKP-21341-M$64.95 -
HK416 Reaction Rod
Nefarious Arms
$124.95Nefarious Arms - Reaction Rod - HK416 The Nefarious Arms HK416 Reaction Rod is used to securely hold the upper receiver in a bench vise so that work may be performed on the muzzle device. It is inserted through the rear of the upper receiver to...HKP-21272$124.95 -
HK MP5 Brace and Stock Adapter - .22LR
HKP HK Parts
$99.95 - $109.95HKP HK MP5 .22LR Brace and Stock Adapter This is the perfect folding stock adapter to replace the polymer end cap on your MP5 .22. CNC machined from a solid billet of aircraft grade aluminum and cerakote for a durable finish. Compatible with...HKP-20795-M$99.95 - $109.95 -
B&T APC9, APC45 Stock or Brace Adapter - Telescopic
B&T Brugger & Thomet
$650.00B&T APC9 & APC45 Telescopic Brace/Stock Adapter The B&T telescopic brace adapter is an essential accessory to attach your favorite brace to your B&T firearm. Features: Complete adapter solution- no extra parts to buy except the brace...HKP-18989$650.00 -
HK MP5, HK90 Series Locking Roller -2 - Standard 7.98mm - Used
H&K Heckler & Koch
$9.95HK German Locking Roller Standard 7.98mm - Used The proper roller size is essential for proper head spacing and bolt gap. Used German German-made -2 or 7.98mm roller, each roller is priced per roller. Used HK German. HK locking roller, -2, 7.98mm. HK...HKP-20600$9.95 -
On Sale
HK91, G3 Tapered Barrel - 16" - Threaded 5/8x24 RH
PTR
Now: $188.95Was: $229.95PTR HK G3/91 Tapered Barrel - Threaded 5/8x24 PTR manufactured US made barrel for the HK91, G3 & PTR style of firearms. This 16" barrel will allow you to add a threaded flash hider that is threaded 5/8x24 US threads. Specifications: Overall Length...HKP-19472Now: $188.95Was: $229.95 -
HK417, MR762 Take Down Tool
H&K Heckler & Koch
$9.95H&K HK MR762/417 Take Down Tool This item is used to take down the upper receiver from the lower receiver as well as tighten down the stock movement on the E1/E2 stock. Each tool will be stored in the rear of the E1/E2 stock and may come in black or...HKP-14438$9.95 -
HK MR556 Incomplete Upper Receiver
H&K Heckler & Koch
$449.95HK German Stripped HK MR556 Upper Receiver New factory German incomplete and unmarked MR556 upper receiver. Compatible With: HK MR556 HK MR223 HK 416 Do you need a matching lower for your build? STS416 A5 LOWER - Specialized Tactical...HKP-02615$449.95 -
HK G36, UMP Sear Spring
H&K Heckler & Koch
$8.95HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.HKP-01866$8.95 -
HK91, G3, MSG90 Cleaning Kit - .308 to .351 Calibers
H&K Heckler & Koch
$64.95New - Original HK German MSG90/HK91/G3 Cleaning Kit - Old Stock Each cleaning kit kit comes complete with brass brush, oil brush, oil tube, hand cleaning brush, and pull chain. Originally built for the G3,91 & MG3 but will work on all .308 - .351 ...HKP-19031$64.95 -
Cleaning Brush Rod
H&K Heckler & Koch
$19.95H&K Cleaning Rod For HK Cleaning Brushes HK chamber face brush, Receiver Brush, Flute Cleaning Brush Cleaning Rod For All US Threaded cleaning Brushes (8-32 thread type). This rod is an aluminum rod that is made to clean all HK rifles and machine...HKP-01821$19.95