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 VP9, VP9SK, VP40 Clamping Sleeve For Drop Safety Axle
H&K Heckler & Koch
$6.95Clamping Sleeve For Drop Safety Axle VP9, VP9SK & VP40 This is the roll pin that goes in the side of the slide and retains the drop safety.HKP-16838$6.95 -
On Sale
HK VP9, HK45, P30, P2000 Rubber Extractor Buffer
H&K Heckler & Koch
Now: $4.95Was: $5.95HK P Series and HK45 Rubber Extractor Buffer A must-have wear and replacement part for the following HK pistols. Compatible With: HK P2000 HK P2000SK HK P30 HK P30SK HK45 HK45 Compact HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SKHKP-01632Now: $4.95Was: $5.95 -
On Sale
HK VP9, VP9SK, VP40 Windowed Slide Plate
HKP HK Parts
Now: $25.95Was: $29.95HKP HK VP9/VP9SK, HK VP40 Windowed Slide Plate A direct replacement for the cheap plastic slide plate that comes stock with your HK VP9, VP40. A great way to dress up and enhance your HK VP9, VP40 pistol. Made from CNC'ed aircraft grade aluminum, hard...HKP-17676-MNow: $25.95Was: $29.95 -
On Sale
HK VP9, VP40 Spring Bushing - Washer
H&K Heckler & Koch
Now: $8.95Was: $9.95H&K HK VP9, HK VP40 Half Shell Spring Washer 2 units needed for complete set. Brand new factory German HK. This item is the item that cradles the firing pin and is covered by the firing pin sleeve and spring assembly. Compatible With: HK VP9 HK...HKP-16832Now: $8.95Was: $9.95 -
On Sale
HK USP, Mark 23 .45 ACP, P30 .40 S&W Magazine Spring - HK 10 Round
H&K Heckler & Koch
Now: $5.95Was: $6.9510 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring A must-have spare part, as magazine springs are prone to wear and tear. Compatible With: HK USP .45 10 round HK USP .45 Tactical 10 round HK Mark 23 10 round HK 9mm & 40 cal P30...HKP-01675Now: $5.95Was: $6.95 -
On Sale
HK UMP Lower Locking Pin
HKP HK Parts
Now: $11.95Was: $12.95HK UMP Lower Locking Pin, Push Pin For use with all HK UMP lowers & USC to UMP conversions. Made in the USA. This is the pin that holds the lower to the receiver. Compatible With: UMP USC Conversions TBT builds Omega Other builds that...HKP-18580Now: $11.95Was: $12.95 -
HK G3 Large Buffer Screw
H&K Heckler & Koch
$1.95HK G3 Large Buffer Screw This is the screw that screws in the back of the buffer. This is also needed to install the Magpul PRS2 stock. Used- in good, working condition.HKP-16981$1.95 -
On Sale
HK MP5, HK33, HK53, HK93 Elbow Spring With Roller - Full Auto Trigger Pack - Used
H&K Heckler & Koch
Now: $4.45Was: $4.95H&K Full Auto Trigger Pack Elbow Spring With Roller - USED Used- Good shape. This item is a factory HK German replacement part.HKP-16241Now: $4.45Was: $4.95 -
Bolt Head Locking Roller - -4, 7.96mm - Under-sized
H&K Heckler & Koch
$27.99Heckler and Koch -4 7.96mm Undersized Roller for Bolt Heads The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller. Compatible...HKP-00504$27.99 -
On Sale
HK416, MR556 Ejection Port Cover
H&K Heckler & Koch
Now: $50.95Was: $55.95H&K HK MR556/416 Ejection Port Cover HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556. This item can also be used on other AR15-style projects to enhance the project with the finest ejection port cover...HKP-15229Now: $50.95Was: $55.95 -
Out Of Stock
HK MP5SD Sealing Ring
H&K Heckler & Koch
$29.95Heckler and Koch Sealing Ring for HK MP5SD Each HK MP5SD sealing ring is the sealing gasket that seals the SD suppressor against the trunnion on factory HK MP5SD's or factory correct SD conversions. This is a typical wear item as they do degrade and...HKP-00142$29.95 -
On Sale
HK416, MR556, HK417, MR762 Buffer Retaining Pin
H&K Heckler & Koch
Now: $14.95Was: $15.95Heckler and Koch HK MR556, HK MR762, 416/417 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series. Compatible With: HK416, MR556 HK MR762 HK M27HKP-02544Now: $14.95Was: $15.95