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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AR-15 Stock - ACS - Mil-Spec
Magpul
$93.95Magpul AR-15 ACS Stock - Mil-Spec The patent-pending Magpul ACS (Adaptable Carbine/Storage) mil-spec model is a drop-in replacement butt-stock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. Similar to the Magpul CTR, the ACS also...HKP-01134$93.95 -
On Sale
HK Handguard Sling Pin - Ambi - Small - USED
H&K Heckler & Koch
Now: $42.95Was: $61.95HK Handguard Sling Pin - Ambi - Small - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This ambidextrous pin will allow the user to attach a sling hook to...HKP-00077-USEDNow: $42.95Was: $61.95 -
HK MP5, AP5 Firing Pin Spring
MKE
$4.88HK MP5, AP5 Firing Pin Spring The MKE firing pin spring is compatible with all MP5, AP5, AP5-P, MP5K, and .40/10 variants, as well as most in-spec clones. The firing pin is one of the most frequently replaced repair items, making this spring an essential...HKP-22485$4.88 -
HK MP5K, AP5-P Housing - Contoured - 0, 1
MKE
$169.95MKE Contoured 0, 1 Housing for HK MP5K and MKE AP5-P This contoured 0, 1 (safe/fire) trigger housing is for HK MP5K-pattern firearms and is manufactured in Turkey. Compatible With: MP5K MKE AP5-P, AP5-M In-spec clones and custom buildsHKP-22468$169.95 -
WOOX Vertical Grip - M-LOK
WOOX
$88.95WOOX HK Rifle, SMG M-LOK Vertical Grip This M-LOK vertical grip is a compact, ambidextrous foregrip made from American walnut with a reversible dual-wall design (vertical wall AND curved wall) to suit different grip styles. The checkered texture is...HKP-22464$88.95 -
WOOX M-LOK Rail Covers - Checkered - GEN2
WOOX
$38.95 - $48.95WOOX Checkered GEN2 HK Rifle, SMG M-LOK Rail Covers The checkered GEN2 M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection. The Checkered texture uses black nylon bushings and is...HKP-22463-M$38.95 - $48.95 -
WOOX Woody Stock - Walnut - Picatinny Mount
WOOX
$228.95 - $298.95WOOX Woody Stock - Walnut The WOOX Woody Stock is a premium upgrade for rifles and SMGs featuring a Picatinny stock interface. Crafted from solid American walnut, it delivers classic warmth with modern ergonomics; featuring an adjustable cheek riser, QD...HKP-22461-M$228.95 - $298.95 -
Arm Brace Hook
MI Midwest Industries
$97.95Midwest Industries Arm Brace Hook The Arm Brace Hook is designed for pistols that use a 1.2" diameter buffer tube. It provides a secure and stable point of contact while offering a built-in, ambidextrous QD sling interface. Specifications: Works with...HKP-22417$97.95 -
HK MP5K End Cap w/ Swivel Attachment
MKE
$69.95MKE HK MP5K End Cap with Swivel Attachment Durable factory-style end cap designed for MP5K platforms. Provides a secure sling mounting point for MP5K pistols. Compatible With: HK MP5K HK SP89 HK SP5K (may require some fitting, install lower pin before...HKP-22373$69.95 -
HK416, MR556 Barrel Flute Cleaning Brush - 5.56 / .223
HKP HK Parts
$24.95HK MR556, HK416 Cleaning Brush - Barrel Flute - 5.56 / .223 This brush is a must-have for cleaning the chamber flutes on a MR556 or HK416 firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly. An HK fluted barrel...HKP-22316$24.95 -
HK MP5 Trigger Group - AC Unity Grip - Match Trigger
HKP HK Parts
$644.85HKP HK MP5 Trigger Group with AC Unity Grip & Match Trigger The MP5 match trigger group combined with the AC Unity grip is a great choice for anyone seeking a tactical and aesthetically pleasing build. Featuring a robust metal housing and a top-tier...HKP-22250$644.85 -
HK90 Series Trigger and Catch Axle - USA
MKE
$1.99HK Sear and Trigger Axle For 90 Series - SURPLUS MKE sear and trigger axle for the 90 series style trigger packs. Each axle pin (aka pivot pin) measures .197 inches (5.0mm). Each HK trigger pack uses a total of 2 of these axle pins per trigger pack...HKP-22233$1.99