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, HK90 Series Cocking Tube End Cap Spring
H&K Heckler & Koch
Now: $4.45Was: $4.95H&K Cocking Tube End Cap Spring Fits all German, Contract & US made cocking tube end caps. A great spare to have on hand as this part can become worn and be lost. The cocking tube end cap spring applies pressure to the cocking tube end cap/dust...HKP-17980Now: $4.45Was: $4.95 -
On Sale
HK45, P30, P30L, P30SK Magazine Release
H&K Heckler & Koch
Now: $14.95Was: $15.95Heckler and Koch Magazine Release for HK45 and HK P30 Compatible With: HK45 HK45 Tactical HK P30, P30S, P30L, P30SK Please Note: This part will not fit pistols other than the ones listed above.HKP-01809Now: $14.95Was: $15.95 -
On Sale
HK416, MR556, HK417, MR762 Forward Assist Plunger Spring
H&K Heckler & Koch
Now: $4.95Was: $5.95Heckler and Koch's Forward Assist Plunger Spring for HK416, MR556, HK417, MR762 New HK German manufacture. Compatible With: HK416, MR556 HK417, MR762 HK G28 HK M27HKP-02537Now: $4.95Was: $5.95 -
On Sale
HK90 Series Compression Rod for Burst Trigger Packs
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K 90 Series Burst Trigger Pack Compression Rod This is an HK German factory part that is found in all HK burst trigger packs. This part, along with the compression rod spring, is the number one most common wear or breakage parts in burst packs...HKP-01047Now: $26.95Was: $29.95 -
On Sale
HK45, HK45C, USP, USPC Detent Plate - V1, V2
H&K Heckler & Koch
Now: $17.95Was: $18.95Detent Plate For V1 & V2 This will provide the safety and decocking functions for both the left and right side selector levers for the HK pistols below. Compatible With: USP Full Size, USPC Pistols in all Calibers 9mm, .357, .40 & .45 HK45...HKP-01171Now: $17.95Was: $18.95 -
On Sale
HK VP9, VP9SK, VP40 Trigger Bar
H&K Heckler & Koch
Now: $50.95Was: $55.95H&K HK VP9/VP9SK, HK VP40 Trigger Bar Compatible With: HK VP9 HK VP9SK HK VP40HKP-16780Now: $50.95Was: $55.95 -
On Sale
HK416, MR556, HK417, MR762 Clamping Sleeve
H&K Heckler & Koch
Now: $4.95Was: $5.95H&K HK 416/417/MR556/MR762 Clamping Sleeve Compatible With: HK416 HK417 MR556 MR762HKP-16618Now: $4.95Was: $5.95 -
HK MP5, MP5K, HK93, HK91 Handguard Bracket Screw - Tactical
PTR
$1.95PTR Tactical Handguard "U" Shaped Bracket Screw Replacement screw for the "U" shaped hangar on the tactical handguard. There are a total of 3 screws used, they are all the same for the MP5k, MP5, HK93 & HK91 tactical handguards. Great spare to have...HKP-17318$1.95 -
On Sale
HK VP9, VP9SK, VP40 Trigger Safety Latch Axle
HKP HK Parts
Now: $2.95Was: $3.95Axle For Trigger Safety Latch VP9, VP9SK & VP40 HK German factory part. This pin is the axle pin for the safety latch in the VP trigger. Compatible With: HK VP9 HK VP9 Tactical HK VP40 HK VP40 Tactical HK VP9SKHKP-16778Now: $2.95Was: $3.95 -
On Sale
HK MP5F, MP5 40,10 Factory Recoil Spring
H&K Heckler & Koch
Now: $13.95Was: $14.95HK German MP5 F 9mm & MP5 40/10 Recoil Spring - New Updated Version New latest HK German manufacture MP5 40/10 replacement recoil spring. Hard to find and a high wear and replacement item. Each spring replaces the MP5F recoil spring for the MP5 9mm...HKP-01061Now: $13.95Was: $14.95 -
Out Of Stock
HK VP9 Rubber Extractor Plug
H&K Heckler & Koch
$4.95HK VP9 Rubber Extractor Plug This part is the rubber buffer found on the inside of the extractor spring to help keep positive tension on the extractor. It's a must-have repair and replacement item.HKP-01849$4.95 -
On Sale
HK UMP, USC Cocking Lever Spring
H&K Heckler & Koch
Now: $7.95Was: $8.95HK UMP & USC Cocking Lever Spring A great spare part to have on hand.HKP-01886Now: $7.95Was: $8.95