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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HK MP5 Magazine Locking Plate - 9mm - Red
HKP HK Parts
$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-18303$7.95 -
HK Ambidextrous Sling Pin Locking Knob
H&K Heckler & Koch
$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-01042$11.95 -
HK416 Ejection Port Axle
H&K Heckler & Koch
$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-20039$4.95 -
HK416 Firing Pin Retaining Pin - Enhanced
H&K Heckler & Koch
$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-02658$19.95 -
HK UMP, USC Cocking Handle Pin
H&K Heckler & Koch
$7.95HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USCHKP-01885$7.95 -
HK USP 9mm, .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
$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-01458$64.95 -
HK VP9, VP9SK, VP40 Trigger Bar Spring - Complete
H&K Heckler & Koch
$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-16781$51.95 -
PTR Spec Tac Latch
Other
$69.95Tac Latch (latest Generation) PTR Spec - PTR .308 Firearms The new updated style of Tac latch is made specifically for the PTR 91 .308 receiver and will require very little modification to the firearm for installation. A major overhaul of the existing...HKP-17611$69.95 -
Out Of Stock
HK416, MR556 Ejection Port Cover Assembly
H&K Heckler & Koch
$89.95HK German HK 416, MR556 Ejection Port Cover Door Assembly Complete This is the newer polymer style cover found on the latest HK 416 and MR556's. This is the complete ejection port door assembly needed on all AR15 or MR556/HK416 models. Can also be used...HKP-16951$89.95 -
HK CC9 Backstrap Roll Pin
H&K Heckler & Koch
$5.95H&K CC9 Backstrap Roll Pin This genuine H&K backstrap roll pin for CC9 pistol secures the interchangeable backstrap to the frame. Compatible With: HK CC9HKP-22110$5.95 -
HK Mark 23 Ejector Roll Pin
H&K Heckler & Koch
$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-01816$6.95 -
HK P30SK, P2000SK Hammer Spring
H&K Heckler & Koch
$9.95HK German Hammer Spring This spring is used with LEM and all standard models. Compatible With: P2000SK P30SKHKP-02598$9.95