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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On Sale
HK MP5K, SP89, SP5K 9mm Rear Stock Adapter with Picatinny Rail - BLEMISHED
JMAC Customs
Now: $53.40Was: $94.95JMAC Customs MP5K/SP89/SP5K 9mm Rear Stock Adapter with Picatinny Rail - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTUREDHKP-18990-BNow: $53.40Was: $94.95 -
Out Of Stock
Picatinny Optic Mount - 52mm - Skeleton - Aimpoint T Series
B&T Brugger & Thomet
$165.00B&T QD Mount "Skeleton" for Aimpoint T Series 52mm B&T universal Picatinny mount 52mm QD riser mount for the Aimpont T Series of optics. Quickly attach and detach your Aimpoint T Series optic with...HKP-21772$165.00 -
On Sale
HK G3 - FMP Early Type Demilled Front End
FMP HK CONTRACT
Now: $63.72Was: $99.95HK G3 - FMP Early Type Demilled Front End Early style G3 front end with no hanger. These are the perfect option for those doing custom builds. Good condition over all. Includes: Cocking tube<HKP-20845Now: $63.72Was: $99.95 -
On Sale
Bolt Knob - Drake - Titanium
Tactical Precision MFG
Now: $18.71Was: $44.99Drake Bolt Knob - Aluminum These bolt knobs are made from aluminum and are finished a in midnight bronze Cerakote and will fit any 5/16-24 threaded bolt handle. Features:HKP-20782Now: $18.71Was: $44.99 -
On Sale
Bolt Knob - Fluted - Titanium
Tactical Precision MFG
Now: $18.71Was: $48.99TPM - Fluted Bolt Knob - Titanium These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle. Features:HKP-20769Now: $18.71Was: $48.99 -
HK USC, UMP Stock Block C Eyelet with Thumb Screw
HDPS
$169.95HDPS HK USC, UMP Stock Block C Eyelet / Thumb Screw Great option since factory HK UMP stocks are hard to find and expensive. The HDPS HK USC/UMP stock block "C." Each unit comes with eyelet / thumb...HKP-20688$169.95 -
Out Of StockOn Sale
HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny
KDG Kinetic Development Group
Now: $194.96Was: $399.95Rail System - 13.75" - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big...HKP-19244Now: $194.96Was: $399.95 -
On Sale
HK33 Cocking Tube - 11" - Left Hand
HKP HK Parts
Now: $63.72Was: $99.95HKP HK33 11" Left Hand Cocking Tube This is the one and only left handed cocking tube for the HK33 cocking tube made in the US. Made to the exact HK specifications as the factory HK33 German cocking...HKP-18892Now: $63.72Was: $99.95 -
HK MP5K, SP5K Slimline Handguard - OD Green - Refinished
H&K Heckler & Koch
$39.95Refinished HK MP5K Slimline Forearm - OD Green Refinished German military OD green slimline forearm with heat shield, modified to fit the MP5K. Available exclusively at HK Parts.HKP-20498$39.95 -
Out Of Stock
HK MP5 Brace System - Modular - .22LR - Havoc
F5 MFG
$349.95F5 MFG HK MP5 .22LR Modular Brace System Havoc MBS (Modular Brace System) for the MP5 .22LR. To convert your brace into a stock, simply swap out the brace attachment interface with F5's MSS stock...HKP-20195$349.95 -
Tommy Built UMP Buffer Tube Adapter
$249.95Tommy Built UMP Buffer Tube Adapter UMP hinge with Buffer Tube Mount for adapting an AR style Mil spec brace or stock. Constructed of nylon and has 6 adjustable positions. Adapter only- stocks in the...HKP-19967$249.95 -
HK MP5, HK93, HK94 M4 Telescopic Stock
Choate
$246.99Choate M4 Telescopic Stock for MP5, HK93, and HK94 The M4 telescopic stock for the Heckler and Koch HK93, HK94 and MP5 replaces the existing stock and gives the shooter the ability toHKP-19895$246.99