Small Parts
Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.
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On Sale
HK MP5 Magazine Locking Plate - 9mm - Red
HKP HK Parts
Now: $6.95Was: $7.95HKP HK MP5, MP5K 9mm Magazine Locking Plate - HK Red Teflon infused glass filled polymer red colored locking plate that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the locking plate to a red unit. A great...HKP-18303Now: $6.95Was: $7.95 -
On Sale
HK Ambidextrous Sling Pin Locking Knob
H&K Heckler & Koch
Now: $10.95Was: $11.95New HK German Ambidextrous Sling Pin Locking Knob These are common replacement items, they can become loose as the O-ring wears and falls off. Be sure to order extra O-rings to avoid losing the locking nut. This is a common replacement part for those...HKP-01042Now: $10.95Was: $11.95 -
On Sale
HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED
HKP HK Parts
Now: $9.95Was: $19.95HKP HK VP9/VP40 Enhanced Support Sleeve COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The support sleeve in the VP series pistols is a crucial component that...HKP-18677-BL-BNow: $9.95Was: $19.95 -
On Sale
HK416 Firing Pin Retaining Pin - Enhanced
H&K Heckler & Koch
Now: $17.95Was: $19.95Heckler and Koch Firing Pin Retaining Pin - New Style for HK416 This part is the newer style pin that is goldish, super hardened, and much less prone to wear and tear. The enhanced version is the most robust, easiest-to-use pin available. Compatible...HKP-02658Now: $17.95Was: $19.95 -
On Sale
HK USP 9mm, .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
Now: $58.95Was: $64.95H&K HK USP 9mm/.40 S&W Recoil Rod Assembly New HK German USP full size USP 9/40 recoil assembly complete. A great spare part to have on hand as the recoil spring is a high-wear item. Compatible With: HK USP 9mm HK USP .40HKP-01458Now: $58.95Was: $64.95 -
On Sale
HK VP9, VP9SK, VP40 Trigger Bar Spring - Complete
H&K Heckler & Koch
Now: $46.95Was: $51.95H&K HK VP9/VP9SK, HK VP40 Complete Trigger Bar Form Spring Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40HKP-16781Now: $46.95Was: $51.95 -
On Sale
HK UMP, USC Cocking Handle Pin
H&K Heckler & Koch
Now: $6.95Was: $7.95HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USCHKP-01885Now: $6.95Was: $7.95 -
On Sale
HK416 Ejection Port Axle
H&K Heckler & Koch
Now: $4.45Was: $4.95Ejection Port Axle - Steel- HK 416 New HK USA manufacture for the HK 416 family of firearms. This is the axle that holds the ejection port cover in place on the upper receiver.HKP-20039Now: $4.45Was: $4.95 -
On Sale
HK Mark 23 Ejector Roll Pin
H&K Heckler & Koch
Now: $5.95Was: $6.95HK Mark 23 Ejector Roll Pin The Mark 23 has been discontinued, and spare parts will become limited in time, so stock up now while we have these hard-to-find parts available.HKP-01816Now: $5.95Was: $6.95 -
On Sale
HK P30SK, P2000SK Hammer Spring
H&K Heckler & Koch
Now: $8.95Was: $9.95HK German Hammer Spring This spring is used with LEM and all standard models. Compatible With: P2000SK P30SKHKP-02598Now: $8.95Was: $9.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Magazine Catch Spring
H&K Heckler & Koch
$9.95Heckler and Koch Magazine Catch Spring for HK 416, HK MR556 and HK417, MR762 HK German manufacture. Compatible With: HK416, MR556 M27 HK417, MR762 G28 AR15, M4, M16 firearmsHKP-02620$9.95 -
On Sale
HK416, MR556, HK417, MR762 Bolt Catch Spring
H&K Heckler & Koch
Now: $5.95Was: $6.95H&K HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-16661Now: $5.95Was: $6.95