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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HK33, HK93 Optic Mount - 212.5mm - Low Profile - Extended Picatinny Rail
MFI
$189.95MFI 8.5 Inch Mounting Rail For HK 93, 33, Style Receivers The MFI extended scope rail is a quick and easy solution to add a Picatinny top rail to your HK receiver without modifications. The low-profile rail does not impede the iron sights. The rail uses...HKP-01829$189.95 -
HK Cable Gun Lock
H&K Heckler & Koch
$19.95HK Cable Gun Lock This is the same lock that ships with factory HK firearms.HKP-02442$19.95 -
HK416, MR556 Stabilizing Brace - SBA5
SB Tactical
$123.95SB Tactical SBA5 Brace The SBA5 Pistol Stabilizing Brace is 5-position adjustable and designed for all platforms capable of accepting a mil-spec carbine receiver extension. Featuring an integral, ambidextrous QD sling socket and an arm cuff based on the...HKP-21794-M$123.95 -
HK MP5K Brace or Stock Adapter - Folding
HKP HK Parts / SB Tactical
$79.99SB Tactical HK MP5K Folding Brace/Stock Adapter Factory SB Tactical adapter for folding pistol brace. Aluminum with hard coat anodize for the ultimate finish. Features: Seamless styling adds elegance & operator utility Quick and easy H buffer...HKP-21413$79.99 -
HK 95mm Picatinny Rail Cover
H&K Heckler & Koch
$29.95HK Rubber Picatinny Rail Cover - 95mm New factory HK rubberized Picatinny rail cover. Specifications: Rail cover dimensions: 95x26x7 mm Compatible With: HK Picatinny rails Other Picatinny railed applicationsHKP-18858$29.95 -
HK G36E Bayonet Lug - Factory
H&K Heckler & Koch
$89.95HK German Factory G36E Bayonet Lug Rare and hard to find. The inside diameter (ID) is 16mm in size. A great alternative for those that do SL8 conversions as well as M27 look clone barrel conversions. You will need the G36 bayonet lug roll pin as it...HKP-00354$89.95 -
HK G36, SL8 Cocking Handle Axle Pin
H&K Heckler & Koch
$11.95HK German G36 & SL8 Cocking Handle Axle Pin This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear. Compatible With: HK G36 HK SL8HKP-01877$11.95 -
HK UMP Extractor - 9mm
H&K Heckler & Koch
$60.95New HK German USC/UMP 9mm Extractor This is the perfect spare part to have for your UMP or USC 9mm conversion. Hard to find and only available here at HKPARTS.HKP-00266$60.95 -
HK MP5 Magazine Floorplate - .40 S&W, 10mm - US
HKP HK Parts
$9.95HKP HK Parts Magazine Floor Plate for HK MP5 40,10 Great for spare parts and also a much needed US made compliant part for U.S. compliance.HKP-16507$9.95 -
HK94, HK93 Semi Grip Frame SEF - Metal
HKP HK Parts
$189.95HK MP5,94, 33,93 Style Metal Grip Frame For Semi Auto Shelves Each German HK housing started out as a factory HK German select fire metal housing. Each housing was modified by welding in a factory correct semi auto shelf, clipped from a double tang...HKP-16470$189.95 -
Magpul RSA - Rail Sling Attachment
Magpul
$29.95Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.HKP-02423$29.95 -
HK MR556 A4 Upper Receiver Kit - 16.5″ - 5.56 - M-LOK
H&K Heckler & Koch
$1,939.00H&K MR556 A4 16.5″ 5.56 M-LOK Upper Receiver Kit This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and pusher rod system. This system utilizes a piston...HKP-21909$1,939.00