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 G36 Magazine - 30 Round - FDE
H&K Heckler & Koch
$119.95HK German G36 30 Round Magazine New HK German 30 round magazine fits all G36, G36K, G36C variants & converted SL8's with the G36 magwell. New Heckler & Koch German mag. Factory fresh latest HK...HKP-18595$119.95 -
HK33, HK53, HK93, HK91, G3 Brass Catcher - 7.62 / .308 - 5.56 / .223
E&L MFG
$79.95E&L Mfg. HK91/G3 Brass Catcher - .308/762, 223/5.56 Rifles Rigid brass catchers are uniquely designed to conform to the shape of the firearm. Snaps on and off instantly and are made from strong,...HKP-00846$79.95 -
HK MP5, SP5K, HK94, SP89 Rear Sight Picatinny Base - Low Profile - 10 Slot
CFG
$119.95CFG MP5 Low Profile Rear Picatinny Sight Base - 10 Slot The CFG mount allows the user to replace the German HK rear sight with a low profile picatinny optic mount. Made in the USA to German...HKP-18321$119.95 -
HK SP5K Trigger Group - Super Safety
War Hammer Armaments
$624.95 - $674.95War Hammer Armaments OEM Polymer SP5K Super Safety Lower Receiver War Hammer Super Safety complete lower for SP5K platforms. Constructed of Kevlar and carbon-fiber–infused polymer, this complete...HKP-22828-M$624.95 - $674.95 -
HK G3 Rear Receiver Section with Rear Sight - Complete - Parkerized - SURPLUS
H&K Heckler & Koch
$54.95H&K G3 Complete Parkerized Rear Receiver Section w/ Rear Sight - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Sold IndividuallyHKP-22164$54.95 -
Out Of Stock
HK416 Folding Front Sight - Complete
H&K Heckler & Koch
$187.95H&K 416 Folding Front Sight - Complete Factory H&K folding front sight for the HK416 with a 33mm sighting line. Compatible WithHKP-22022$187.95 -
HK416A5, MR556 Barrel - 5.56 / .223 - 11"
H&K Heckler & Koch
$424.95Heckler and Koch 11" Barrel for HK416A5, MR556 A4, MR556 A5 Factory German 11" HK416A5, MR556 barrel. Cold hammer-forged and built to HK’s standard for durability, accuracy, and service life. The 1:7...HKP-21932$424.95 -
HK MP5K to G3 Stock or Brace Adapter
HKP HK Parts
$113.95HKP HK MP5K to G3 Brace/Stock Adapter The MP5K/G3 adapter enables seamless compatibility between MP5K firearms and G3-style stocks. Designed for a secure and sturdy connection, it's an excellent...HKP-21853$113.95 -
On Sale
HK MP5K Stock with Direct Fit Adapter
Magpul
$149.95 - $199.95Magpul HK MP5K Stock with Direct Fit Adapter MP5K DT Magpul stock ready to drop in on any in-spec MP5K receiver or clone. We take our AR MP5K Adapter and attach it onto a mil-spec buffer tube. We...HKP-21412-M$149.95 - $199.95 -
On Sale
HK UMP Hammer Spring - Left
USA
Now: $6.34Was: $9.95USA HK UMP Left Hammer Spring New U.S hammer spring- left side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With: HK UMP...HKP-20840Now: $6.34Was: $9.95 -
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included
SB Tactical
$294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA4 is 5-position adjustable and features an...HKP-19930$294.95 -
On Sale
HK45, HK UMP Flash Hider - 4 Prong - Threaded 16x1 RH
HKP HK Parts
Now: $50.97Was: $79.95HK Parts .45 ACP 4 Prong Flash Hider - Threaded 16x1 RH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for...HKP-01018Now: $50.97Was: $79.95