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, HK33, HK53, HK93 Catch with Roller for SEF and Navy Trigger Packs
H&K Heckler & Koch
$8.95H&K Friction Sear For SEF, Navy Trigger Packs New HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.HKP-16198$8.95 -
HK SP5K Grip Module - SL
Magpul
$219.95 - $239.95Magpul HK SP5K SL Grip Module HK Parts brings a solution for those wanting to upgrade to the Magpul SL grip. This is a perfect option for those wanting improved ergonomics and a modern aesthetic. The pictograms are hand-painted to match the factory...HKP-20945-M$219.95 - $239.95 -
HK416, MR556, AR-15 Buffer Tube Castle Nut
Ergo
$9.99Ergo AR-15 Castle Nut for Buffer Tubes - US Made Steel Castle-nut for AR buffer tubes fits both mil-spec and commercial buffer tubes alike. Compatible With: HK416, MR556 AR-15 style platformsHKP-02729$9.99 -
On Sale
HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring
MKE
Now: $16.95Was: $19.95MKE HK MP5, MP5K, AP5 Steel Firing Pin and Spring Replacement Kit Replacement steel firing pin and spring kit for HK MP5 platforms. Direct-fit parts for repairing or replacing worn firing components in MP5-style bolt assemblies. Includes: Firing...HKP-99344Now: $16.95Was: $19.95 -
Picatinny - Dual Folding Adapter - Stabilizer
Strike Industries
$197.99Strike Dual Folding Adapter - Stabilizer This new stabilizer is the perfect option for the MP5 or MP5K platform that utilizes a 1913 picatinny back plate. For a quick and easy ambidextrous folding action. The Strike Dual Folding Adapter is a...HKP-21288$197.99 -
HK MP7 Piston Ring
H&K Heckler & Koch
$9.95HK German MP7A1 Piston Ring For Gas Piston New HK German MP7 piston ring. A high wear & tear item. Works on all HK MP7 models. Each ring is sold individually. 3X are needed for each piston. We suggest ordering 3 and swapping them all at the same time.HKP-17426$9.95 -
Out Of Stock
HK MP5SD Tri-Rail Handguard
B&T Brugger & Thomet
$375.00B&T Brugger and Thomet Tri-Rail Handguard for HK MP5SD B&T manufactured MP5SD Tri-rail. Factory HK Part number 299459. Made in Switzerland for HK & B&T. Compatible With: All factory spec current production MP5SD...HKP-16884$375.00 -
Ambi Trigger Pack - Semi Auto - 9mm - US Made 922r Parts
HKP HK Parts
$309.95HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts HK MP5/94 9mm Semi-Auto Trigger Pack Complete. Assembled and ready install on your firearm. The components that count towards 4 of the 922r compliant parts include the trigger pack box,...HKP-18269$309.95 -
HK MP5, SP5K Barrel Flute Brush - 9mm
HKP HK Parts
$22.95HKP HK Cleaning Brush - 9mm - Barrel Flute Short, flexible brush sized for cleaning 9mm fluted barrels. Designed to reach the grooves and remove fouling without damaging the flute edges. Compatible With: HK MP5/K HK SP5/K HK SP89 HK94 HK34 Clones and...HKP-22315$22.95 -
Out Of Stock
ACRO P-2 Red Dot Reflex Sight - 3.5MOA
Aimpoint
$599.00Aimpoint ACRO P-2 Red Dot Reflex Sight - 3.5MOA Compact and boasting high clarity, the ACRO is a perfect compliment to any SMG platform. Specifications: 3.5 MOA dot size 50,000 hours (over 5 years) of constant operation 4 night vision compatible...HKP-21625-M$599.00 -
HK91, G3 Cocking Handle - Rubberized
H&K Heckler & Koch
$32.95HK German G3 & HK 91 Rubberized Cocking Handle - Newest Style A genuine Heckler & Koch part. This is the latest style cocking handle that replaces the standard plastic style cocking handle that chips, cracks, and eventually falls off. This new...HKP-00509$32.95 -
Out Of Stock
HK Barrel Retaining Pin - 5.15mm
H&K Heckler & Koch
$14.95H&K Barrel Retaining Pin - 5.15mm This is the barrel pin used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel in the trunnion. Each pin is slightly oversized for...HKP-01662$14.95