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 MP5SD Sealing Ring - Enhanced
HKP HK Parts
$9.95HKP HK Parts Enhanced Sealing Ring for HK MP5SD The enhanced sealing ring is made from a newer, longer-lasting material as well as having a slightly thicker profile for secure sealing. The MP5SD sealing ring is the gasket that seals the SD...HKP-18053$9.95 -
Out Of Stock
HK91, G3, PTR 20 Round Magazine
KCI
$28.95HK 91, G3, PTR .308 20 Round All Steel Magazine - KCI Designed to fit your G3, HK91, & PTR style firearms chambered in .308 and 7.62x51. This standard capacity 20-round magazine provides reliable and smooth feeding. Constructed of steel with a grey...HKP-19970$28.95 -
HK, Walther, Colt, .22LR O-Ring- Barrel Adapter
USA
$2.95Heckler and Koch, Walther, Colt, .22LR Barrel Adapter O-Ring Made from the highest quality and very durable Viton material. The O-ring on the adapter tear with use or become brittle over time. Be sure to grab a few extra rings with your adapter to ensure...HKP-17379$2.95 -
HK UMP, USC Picatinny Rail Set - 4 Piece
HKP HK Parts
$149.95HK UMP, USC Rail Set Complete A complete set of rails for your HK UMP/USC featuring an extended top rail for mounting your optic of choice. The rails are scratch resistant, class 3 mil-spec hard coat anodized. Each set includes the top rail, all 3 side...HKP-17429$149.95 -
HK MP5 Handguard - .22LR - M-LOK
HKP HK Parts
$99.95HKP HK MP5 .22LR M-LOK Handguard The M-LOK tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required, a true drop in option. Features: Made in the USA CNC machined from aircraft grade...HKP-20305-M$99.95 -
HK416 Magazine - .22LR - Gray
Walther
$34.95HK, Umarex, Walther, HK416 .22LR Magazine - 30 Round Magazine This is the factory OEM magazine for all of the models listed. Each magazine comes in charcoal gray color. Compatible With: HK416 .22 Colt M4 .22 HK G36 .22 Beretta ARX 160 ...HKP-01749$34.95 -
M-LOK Vertical Foregrip - Long
HKP HK Parts
$24.95HKP Universal M-LOK Long Grip This grip is by far the nicest grip we have encountered for the money. This rock solid grip is a must have for anyone that uses a vertical grip. This is the only vertical grip out there that offers a built in aluminum...HKP-20680$24.95 -
HK MP5, SP5K Firing Pin Spring
H&K Heckler & Koch
$9.95HK Heckler & Koch HK94, MP5 Spring - Firing Pin German Fits all of the MP5, SP5, SP5K, MP5K 9mm and 40/10 Variants including MP5, 94 clones. The firing pin is one of the most common repair and replacement items. Compatible With: MP5, MP5K SP5,...HKP-00062$9.95 -
Out Of Stock
HK MP5K Vertical Foregrip - 3 Slot Rail Section
HKP HK Parts / Magpul
$69.95HKP, Magpul MP5K VFG w/Rail Section - 3 Slots New VFG for the MP5K platform is now M-LOK compatible and comes with a Magpul Aluminum 3 slot rail. The perfect combination to install lights or lasers. M-LOK slots are integrated on both sides to make it a...HKP-20726$69.95 -
HK MP5, SP5, HK94 A3 F Retractable Buttstock - 4 Position
H&K Heckler & Koch
$589.95H&K Heckler & Koch's A3 F 4-Position Retractable Stock designed for HK MP5, HK SP5, and the HK94 9mm submachine gun. This German HK A3 F retractable buttstock is the latest and the greatest! The retractable design allows sliding of the stock to...HKP-17614$589.95 -
HK MP5, MP5K Optic Mount - Extended Claw - Picatinny
UTG PRO
$64.95UTG HK MP5/MP5K Claw Mount - Extended Picatinny UTG Pro Claw Mount for MP5 and MP5K pattern firearms featuring UTG's patented receiver locking interface. Each U.S. made mount features an extended Picatinny rail, lightweight matte black...HKP-21606$64.95 -
Out Of Stock
HK MP5, MP5K Optic Mount - Low Profile
B&T Brugger & Thomet
$119.95B&T MP5, MP5K - Low Profile Scope Mount B&T low profile scope mount. Specifications: Color: Black Height max: 30.7 mm Length max: 84 mm Length of top rail: 84 mm Material: Aluminum NATO Accessory Rails: 1 Part number: BT-21222 Treatment:...HKP-16875$119.95