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 MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto
MKE
$4.95MKE AP5, HK MP5, G3 Full-Auto Elbow Spring with Roller This elbow spring is manufactured by MKE from steel and is used in MP5 and G3 pattern trigger packs. It provides proper tension and function for the trigger pack elbow and is suitable for...HKP-22489$4.95 -
WOOX Woody Stock - Walnut - Picatinny Mount
WOOX
$228.95 - $298.95WOOX Woody Stock - Walnut The WOOX Woody Stock is a premium upgrade for rifles and SMGs featuring a Picatinny stock interface. Crafted from solid American walnut, it delivers classic warmth with modern ergonomics; featuring an adjustable cheek riser, QD...HKP-22461-M$228.95 - $298.95 -
WOOX Edge Stock - Walnut - Picatinny Mount
WOOX
$228.95 - $298.95WOOX Edge Stock - Walnut The WOOX Edge Stock is a premium upgrade for rifles and SMGs featuring a 3 Picatinny stock interface. It blends a precision-machined aluminum body with an American walnut cheek riser for a clean profile, solid lockup, and a...HKP-22460-M$228.95 - $298.95 -
On Sale
HK MP5, AP5 Front Sight Tower - UNFINISHED - BLEMISHED
MKE
Now: $22.46Was: $49.95MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED SOLD INDIVIDUALLY - UNFINISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The front sight tower is a...HKP-22220-BNow: $22.46Was: $49.95 -
On Sale
HK MP5 Burst Trigger Group - 4 Position 0,1,3,F - USED
H&K Heckler & Koch
Now: $1,949.96Was: $2,599.95HK MP5 4 Position Burst Trigger Group - 0,1,3,F - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German 4 Position 3 Round Burst Trigger Group – complete and ready for...HKP-02610-USEDNow: $1,949.96Was: $2,599.95 -
HK91, G3 Folding Stock - HDA3
Haga Defense
$349.95HDA3 Folding Stock for HK91, G3 The HDA3 is a modular, USA-made stock system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth adjustability, and...HKP-22356-M$349.95 -
HK MP5, MP5K Flash Hider for Tri-Lug Barrels - 1/2x28 - Taper Mount
JMAC Customs
$116.951/2x28 - Plan B Taper Mount Flash Hider for MP5 & MP5K This flash hider is specifically designed for use on MP5, MP5K, and clone firearms featuring the MP5-spec. tri-lug. The internal profile clears the front of the tri-lugs when installed...HKP-22407$116.95 -
Rail Panel Cover - M-LOK - 2 Slot
JMK
$13.95 - $18.95JMK Rail Panel Cover - M-LOK - 2 Slot JMK M-LOK rail panels are compatible with platforms featuring M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid...HKP-22402-M$13.95 - $18.95 -
HK FMP G3 Early Type De-Milled Front End - No Cocking Handle Assembly
FMP HK CONTRACT
$68.95HK G3 - FMP Early Type De-milled Front End - No Cocking Handle Assembly Early style G3 front end with no hanger from de-milled FMP G3 parts kits. Perfect for custom builds. Includes: Cocking tube Trunnion Barrel pinHKP-22377$68.95 -
AP51 MOE PR Stock - PDW
Magpul
$249.95Magpul Century AP51 PDW MOE PR Stock Designed for the Century AP51 PDW platform, this adapter ensures a precise fit and solid lockup for stock installation. Built for durability and proper alignment, it maintains correct stock geometry and function...HKP-22346$249.95 -
HK416, MR556 Handguard - 12.5" - M-LOK - Tropentarn
H&K Heckler & Koch
$488.95H&K HK MR556/HK 416 12.5" M-LOK Handguard - Tropentarn New HK German manufactured handguard for the HK 416 and MR556 firearm. ONLY 3 AVAILABLE Compatible With: HK MR556 HK 416HKP-99327$488.95 -
Out Of StockOn Sale
HK416, MR556 Mil-Spec German E1 Stock - Black - USED
H&K Heckler & Koch
Now: $167.95Was: $222.95H&K HK MR556/416 Mil-Spec German E1 Stock - Black - USED ONLY 1 UNIT AVAILABLE - AS PICTURED - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. The HK E1 Buttstock fits mil-spec buffer...HKP-00052-USEDNow: $167.95Was: $222.95