Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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HK G3 Parts Kit
H&K Heckler & Koch
$397.95HK German G3 .308/7.62 X 51mm Surplus Parts Kit Each parts kit comes with all parts from a functional HK G3 full auto rifle that was demilled into a parts kit except for the barrel and receiver. Each part of the parts kit will vary from fair to excellent...HKP-00827$397.95 -
On Sale
HK MP5, HK90 Series Trigger Spring - SEF, Navy
MKE
Now: $2.45Was: $8.95MKE SEF & Navy 3 Position Trigger Spring The MKE trigger spring is an essential upgrade for anyone dealing with worn or broken trigger return springs in surplus trigger packs or as spares for all 90 series owners. These springs are fully compatible...HKP-22225Now: $2.45Was: $8.95 -
Out Of Stock
B&T MP9, TP9, APC9, SPC9, GHM9, KH9 Magazine - 20 Round - Improved Rubber Bumper
B&T Brugger & Thomet
$65.00B&T 20 Round Magazine 9mm with Improved Rubber Bumper The B&T factory 20 round magazine is designed for reliable performance in B&T firearms. Equipped with an upgraded rubber bumper for added durability and protection, it provides a secure...HKP-21714$65.00 -
Surefire ST Mounting Plate - Tape Switch - M-LOK
Magpul
$14.95Magpul M-Lok Tape Switch - Surefire ST The M-LOK tape switch mounting plate is designed to attach surefire ST pressure pads on M-LOK compatible systems. It is molded of the same high quality polymer as other Magpul products, combining light weight with...HKP-21480$14.95 -
HK MP5K 2-Stage Trigger Group - 9mm - Complete
Timney Triggers
$498.95Timney Trigger for MP5K, SP5K The SEF Timney trigger group comes completely assembled, ready to drop into your receiver. Features a 3rd generation German ejector lever, new SEF selector lever, and a brand new factory German housing. Available exclusively...HKP-20515-M$498.95 -
HK VP9SK Magazine Locking Plate - 12 Round
$7.95H&K HK VP9SK Locking Plate for 12 Round Magazine New HK German factory part. This is the locking plate for the bottom of the magazine spring on the newer VP9SK 12 Round magazine. Great spares to have on hand to keep your magazines in tip top shape!HKP-20898$7.95 -
Out Of Stock
B&T APC Stock or Brace Adapter - Telescopic
B&T Brugger & Thomet
$94.95B&T APC9/APC45/APC223/APC300 Telescopic Brace/Stock Adapter Swiss made B&T brace adapter for the APC9/APC45/APC223/ACP300 telescopic stock. Adapter replaces the buttpad on the BT-20394 and BT-20407 APC telescopic stocks and allows the attachment...HKP-19860$94.95 -
AR M-LOK Handstop Laser - Green
Viridian
$178.95Viridian AR M-LOK Hand Stop Laser - Green Viridian, the leader in weapon-mounted technology, is responsible for a number of firearm innovations - including green and red laser sights. Viridian's new HS1 is the world's first AR hand stop with an...HKP-19464$178.95 -
Out Of Stock
M-LOK Rail Section - 7 Slot - KeyMod - Red
Strike Industries
$25.95Strike Industries M-LOK & KeyMod Universal 7 Slot Rail Section - Red Strike Industries LINK attachment system takes the age old question Key-Mod vs. M-LOK and came up with the ultimate solution, a dual interface design compatible with both M-LOK and...HKP-19188$25.95 -
HK G36K, G36C Rail - Side
HKP HK Parts
$24.95HK Aftermarket G36K/G36C Side Rail For Handguard This will fit the sides (left or right) of the forearm on the G36K and G36C forearms. Comes with all mounting hardware. Each rail is sold individually.HKP-00273$24.95 -
HK416, MR556, G36, SL8 Gas Piston
USA
$79.95HK G36, HK SL8, HK 416, & HK MR556 Gas Piston Complete assembly with 3X rings installed and nitrided black. Counts as one US-made compliant part for your SL8-G36 style conversion. This is one of the best parts to use on the conversion as it is one of...HKP-14540$79.95 -
HK VP9, P30, USPC, P2000 Magazine Follower - 9mm
HKP HK Parts
$29.95HKP HK Parts 9mm Magazine Follower for HK VP, HK P30, HK USPC, HK P2000 A great replacement item for the stock follower. Made from aircraft-grade black Teflon hard coat anodized aluminum CNC machined from a solid billet. Compatible With: VP9,...HKP-20594$29.95