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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HK21 Recoil Spring
H&K Heckler & Koch
$79.95H&K HK21 (7.62x51/.308) Recoil Spring New HK Factory HK21 triple braided recoil spring. Compatible with early HK21's manufactured by HK and FMP. The 21E requires a different spring.HKP-00238$79.95 -
HK91, G3 Slimline Handguard - OD Green - Used
H&K Heckler & Koch
$14.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - Used This is a used German Military surplus OD green Slimline Forearm with a heat shield. Each forearm is in good condition and can be restored with a bit of TLC. The conditions range from good...HKP-16265$14.95 -
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 -
HK91, G3 Barrel Chamber Flute Cleaning Brush
H&K Heckler & Koch
$25.95Heckler and Koch New Chamber Flute Brush for HK91 and HK G3 7.62x51 / .308 This brush is a must-have for cleaning the chamber flutes on a HKG3 or HK91-style firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly...HKP-00500$25.95 -
HK MP5K, SP5K, SP89 Handguard with Handstop
H&K Heckler & Koch
$69.95HK SP5K Handguard Factory over-the-muzzle forearm for the MP5K platform. Compatible With: HK MP5K, SP5K, SP89 In spec. clones and custom buildsHKP-18063$69.95 -
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...HKP-21625-M$599.00 -
Out Of Stock
HK416 E1, MR556 Charging Handle - Ambidextrous
H&K Heckler & Koch
$129.95H&K HK MR556/416 E1 Charging Handle - Ambidextrous HK's design boasts a smooth & easy to release latch with an enhanced oversized charging handle. Compatible With: HK MR556 HK 416 Other AR15, M4 & M16 applicationsHKP-01959$129.95 -
HK MP5, HK94 Trigger Group - 9mm - 2 Position Navy Housing 0,1 - Safe, Semi Only
HKP HK Parts / Heckler & Koch
$649.95HKP MP5 & HK94 9mm Trigger Group 2 Position Navy Housing 0,1 - Safe, Semi Only A lower cost alternative to the hard-to-find German HK FBI or 0,1 ambidextrous trigger groups. Now, for the first time, we have the popular ambidextrous trigger group...HKP-17238$649.95 -
HK Trigger Pack Ejector Lever Axle
H&K Heckler & Koch
$19.95H&K Trigger Pack Ejector Lever Axle HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the ejector lever in place in the trigger pack. Fits all SEF & Ambidextrous style HK trigger packs...HKP-01091$19.95 -
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, HK416 Barrel - .22LR - 8.5" - Threaded 8x.75
RCM
Now: $206.96Was: $229.95RCM HK MP5 / 416 .22LR Pistol Barrel The first and only replacement barrel for the HK .22LR platforms—this is a game-changer! Previously, replacing the barrel meant the hassle of sending the receiver to H&K and waiting for the assembly to be...HKP-21403Now: $206.96Was: $229.95 -
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