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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HK USC, UMP Extractor - .40 S&W
H&K Heckler & Koch
$54.95HK German UMP Or USC .40 Extractor New HK German factory OEM part. This is a high wear and replacement item as the .40 cal cartridge has a high impulse that results in an increased occurrence of this extractor wearing out and breakage. A must-have...HKP-00264$54.95 -
HK UMP/USC (.40 S&W/.45 ACP/9mm) Rear Sight Complete
H&K Heckler & Koch
$45.95HK USC and UMP Rear Sight Complete Compatible With: USC. 45 UMP 9mm UMP .40 UMP .45HKP-16634$45.95 -
HK G36/UMP (.40 S&W/.45 ACP/9mm/5.56/.223) F/A Hammer
H&K Heckler & Koch
$49.95G36 & HK UMP Hammer For Lower Or Trigger GroupHKP-02308$49.95 -
HK G3, HK417 Flash Hider - WARCOMP - Threaded 5/8x24
Surefire
$159.95SureFire WARCOMP (7.62x51/.308) Flash Hider - Threaded 5/8x24 This flash hider is perfect for the post 2016 production PTR models as well as C308 models. Compatible With: HK G3/91/PTR HK 417/MR762 HK PSG1 B&T APR AR10 LR308 C308 7.62x51/.308...HKP-18024$159.95 -
Out Of Stock
HK91, G3 - 15 Round Magazine
H&K Heckler & Koch
$59.95HK G3 & HK 91, PTR91 - 15 Round Magazine The HK G3, 91 ,PTR magazine is made by PTR from a German aluminum HK magazine and converted to 15 rounds. Perfect for states such as NJ that only allow a 15 round mag capacity. As an added bonus this magazine...HKP-17006$59.95 -
Out Of Stock
PTR Standard Stock Buttpad
PTR
$39.95HK U.S. Made Standard Stock Butt pad Perfect for A2 fixed stocks. This item is hard rubber and softer than a factory standard butt pad - that is hard plastic only and prone to cracking. Super durable and better than factory HK. This is the perfect...HKP-00375$39.95 -
Out Of Stock
HK33, HK53, HK93 Magazine Spring - 25 Round
H&K Heckler & Koch
$11.95HK 93, 33, & 53 Magazine Replacement Spring For 25-Round Magazines Hard to find and a must-have spare for your HK mags. No longer in production.HKP-00483$11.95 -
HK MP5, SP5K Optic Mount, Trijicon ACOG - 84mm - Low Profile
B&T Brugger & Thomet
$169.95B&T Mounting Rail NAR for HK MP5 & MP5K with Trijicon ACOG THIS MOUNT HAS BEEN DISCONTINUED. ONLY A COUPLE UNITS LEFT. Specifications: Color: Black Height max: 31.5 mm Length max: 84 mm Material: Aluminum Treatment: Hardcoat...HKP-17284$169.95 -
M3 Magazine - PMAG - 7.62x51 / .308 - 25 Round
Magpul
$24.95Magpul PMAG 25-LR 25-Round 7.62 NATO The 7.62x51 NATO (.308 Winchester) PMAG 25LR is a cost effective high reliability magazine for SR25/M110 pattern rifles featuring true 25-round capacity, constant-curve body, and snap on Impact/Dust Cover. Designed...HKP-16908$24.95 -
HK MP5, MP5K Cocking Handle - Skeletonized
HKP HK Parts
$45.95HKP HK MP5, MP5K Extended Cocking Handle - Skeletonized Skeletonized extended cocking handle for MP5 & MP5K firearms. Designed to also function with UTG monolithic M-LOK handguards. Made from solid steel billet and nitrided for a robust finish...HKP-22273$45.95 -
Out Of Stock
HK416, HK417, MR556, MR762 Takedown Pin - Rear - A4 Style
H&K Heckler & Koch
$43.95H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin. Will work for A1 and A4 applications. Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16HKP-22029$43.95 -
HK SP5 ACR Stock or Brace Adapter
HKP HK Parts
$139.95HKP HK SP5 ACR Stock or Brace Adapter This adapter allows the ACR stock to be fully compatible with the SP5 and in-spec MP5 platforms. It’s built from aircraft-grade aluminum with a pre-installed buffer for a straightforward, drop-in conversion...HKP-21519$139.95