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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HK416, MR556 Flash Hider - G28 Style - Threaded 1/2x28
MFI
$79.95MFI 5.56/.223 G28 Style Flash Hider - Threaded 1/2x28 The G28 2nd Gen flash hider features the latest style and is threaded 1/2x28. Constructed from ordnance-grade steel, it is finished with a semi-matte, mil-spec black oxide coating for enhanced...HKP-17941$79.95 -
HK UMP Magazine Locking Plate - .45 ACP - US
USA
$6.95HK UMP .45 Magazine Locking Plate Made in the USAHKP-20136$6.95 -
HK416, MR556 M-LOK Compatible Handguard - 12.5"
H&K Heckler & Koch
$224.95H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum with a black hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles chambered in 5.56x45mm...HKP-19695$224.95 -
Ergo M-LOK QD Sling Mount
Ergo
$24.95Ergo M-LOK QD Sling Mount Compatible with any firearm featuring M-LOK attachment points.HKP-17875$24.95 -
Out Of Stock
HK416, MR556 Handguard - Quad Rail with Flip Up Sight
H&K Heckler & Koch
$599.95HK 416A5 9" Quad Rail With Flip Up Front Sight New latest production HK 416A5, MR556 9" quad rail with integrated built in front flip up sight. Latest upgraded design with the laser markings for the adjustable gas block for suppressed and non-suppressed...HKP-17710$599.95 -
Out Of Stock
HK G36, SL8 Recoil Buffer - Factory
H&K Heckler & Koch
$20.95HK G36 Or SL8 Factory Recoil Buffer A critical spare part as these buffers deteriorate with usage and time.HKP-00290$20.95 -
HK G36, SL8 Ejector Spring
H&K Heckler & Koch
$35.95HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.HKP-01867$35.95 -
HK G36, SL8 Cocking Handle Spring - US
USA
$9.95G36 Cocking Handle Spring- US Made Compatible With: G36 All variants SL8 All variantsHKP-18369$9.95 -
HK UMP, USC, G36 Trigger
H&K Heckler & Koch
$19.95HK UMP, USC & G36 Trigger New HK German factory trigger. A great spare or replacement part. Compatible With: HK G36 HK UMP HK USCHKP-16495$19.95 -
HK USC Magazine Spring
H&K Heckler & Koch
$8.95H&K USC (.45 ACP) 10 Round Factory Magazine Spring Compatible With: HK USC 10 Round magazinesHKP-15284$8.95 -
HK91, G3 HK33, HK53, HK93 Blank Firing Barrel Adapter
H&K Heckler & Koch
$39.95H&K (5.56/.223) & (7.62x51/.308) Rifle Blank Firing Adapter- HK Barrels German blank firing adapter used from the German military. Best quality & price in the country by the best makers of US made HK components available anywhere. Compare...HKP-15593$39.95 -
HK33K Barrel - .556 / .223 - 12.7" - Threaded 15x1
RCM
$234.95RCM HK33K (5.56/.223) Barrel - Threaded 15x1 Enhance your HK33K with the RCM 12.7" barrel, crafted from cold hammer-forged steel. The nitride finish provides exceptional corrosion and wear resistance, and the fully fluted chamber meets stringent HK...HKP-02319$234.95