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 .22LR Handguard - M-LOK
HKP HK Parts
$169.95HKP HK Parts and Heckler and Koch M-LOK Forearm for HK MP5 .22LR HK Parts brings you a long overdue option for all the MP5 .22LR owners. Our new forearm takes the classic MP5 plastic forearm aesthetics from the MP5 .22LR and combine it with M-LOK...HKP-21260-M$169.95 -
HK MP5, SP5 Rear Sight Set, Complete
H&K Heckler & Koch
$79.95MP5, HK94 and SP5K Rear Sight Set Complete - US and Germany Each rear sight set includes the entire rear sight assembly and all the mounting hardware for the complete MP5 rear sight assembly. All parts are German HK manufacture with the exception of the...HKP-19365$79.95 -
HK Rifle Cleaning Kit - Universal - Used
H&K Heckler & Koch
$4.95Original German Army Issue HK91, G3, PTR Cleaning Kit - Surplus Includes: Brass brush Oil brush Oil tube Hand cleaning brush Pull chain Compatible With: HK91, G3, PTR, C308, CETME HK33, HK33, HK93 HK MP5, MP5SD, HK94 HK MP5K, SP89 HK PSG1, MSG90 HK...HKP-15612$4.95 -
Out Of Stock
HK416, MR556 Ejection Port Cover - FDE
H&K Heckler & Koch
$59.95HK German HK 416, MR556 Ejection Port Cover In FDE HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556's. This item can also be used on other AR15 style projects to enhance the build with the finest ejection port...HKP-18062$59.95 -
On Sale
HK MP5 Stock with 4 QD Rubber Buttstock Pads
AC-Unity
Now: $64.95Was: $129.95AC-Unity HK MP5 Stock with 4 Rubber QD Butt Pads MP5 side folding stock assembly from AC-Unity. This assembly includes four quick detach butt pads for a custom fit, prefect for any shooter. Multiple sling attachments accomodate a wide range of...HKP-21634Now: $64.95Was: $129.95 -
HK MP5 Extractor Spring - .40 S&W, 10mm, .357 SIG
USA
$9.95US Made Extractor Spring for HK MP5 .40 S&W, 10mm, and .357 The extractor spring is the most common wear item on an MP5 and a must-have spare and replacement part. HK Germany no longer makes the MP5 40,10 extractor spring, and they are no longer...HKP-00409$9.95 -
Out Of Stock
HK UMP, USC Barrel Roll Pin
H&K Heckler & Koch
$11.94Heckler and Koch German made USC and UMP Universal Barrel Roll Pin HK recommends replacing the barrel pin when the barrel is removed with a new barrel pin. This is a great spare part to have on hand. The factory-correct barrel pin for all HK UMP and USC...HKP-00603$11.94 -
HK MP5 Magazine Spring - 30 Round - Enhanced
HKP HK Parts
$8.95HKP HK MP5 30 Round Enhanced Magazine Spring US-made enhanced 30-round magazine spring for the MP5. Provides improved feeding reliability and consistent spring tension. Compatible With: HK MP5/KHKP-22157$8.95 -
Bolt Head Locking Roller +5 - 8.05mm - New
HKP HK Parts
$8.99Roller +5 - New - 8.05mm HK Parts Standard (8.05 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way...HKP-19440$8.99 -
HK UMP Magazine - 25 Round - .45 ACP
H&K Heckler & Koch
$145.95New HK Heckler and Koch Non-LE, Mil Marked .45 ACP 25 Round Magazine for HK UMP The UMP .45 magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP magazines. Compatible With: HK UMP .45 HK USC to UMP . 45...HKP-00605$145.95 -
Out Of Stock
HK MP5SD Locking Piece #5 - 120 Degree - 9mm
RCM
$34.95MP5SD 120 Degree Locking Piece - US This locking piece is a US made version of the factory German MP5SD 120 degree locking piece. This was the German locking piece that was marked #5 when HK Germany used to make them. Each locking piece is made here in...HKP-16715$34.95 -
HK MP5, HK94, SP5K Rear Sight Drum and Base - US
HKP HK Parts
$53.47HKP HK Parts Rear Sight Drum and Base for HK MP5, HK94, and HK SP5K Finally, an affordable factory correct rear sight that does not break the bank or lead to settling for inferior 3rd world produced pot metal cast MP5 rear sights. We offer the only set...HKP-17512$53.47