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 VP9, VP9SK, VP40 Axle For Trigger Safety Latch
HKP HK Parts
Now: $3.16Was: $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 VP9SKNow: $3.16Was: $3.95 -
On Sale
HK VP9 Rubber Extractor Plug
H&K Heckler & Koch
Now: $4.46Was: $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.Now: $4.46Was: $4.95 -
On Sale
HK MP5, MP5K, HK93, HK91 Handguard Bracket Screw - Tactical
PTR
Now: $1.75Was: $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...Now: $1.75Was: $1.95 -
On Sale
HK MP5K, SP5K Rear Push Pin Weldment Set
USA
Now: $13.46Was: $14.95HK MP5K, SP5K Rear Push Pin Weldment Set This weldment set is the 2 pieces needed for the rear of the flat/receiver that holds the stock/brace or end cap in place. CNC machined from weldable steel and the finest weldment available on the market...Now: $13.46Was: $14.95 -
On Sale
HK Magazine Release - HK45 & P30, P30L, P30SK
H&K Heckler & Koch
Now: $14.36Was: $15.95H&K Magazine Release Compatible With: HK45 HK45 Tactical HK P30, P30S, P30L, P30SK Please Note: This part will not fit pistols other than the ones listed above.Now: $14.36Was: $15.95 -
On Sale
HK MP5 Bushing Sleeve - Elbow Spring with Roller
HKP HK Parts
Now: $7.16Was: $8.95HK Parts Distance Sleeve replacement for your elbow spring in your Semi-Auto MP5 New USA manufacture. Semi auto spacer for elbow spring on the HK 90 series trigger packs. Micro polished and made from stainless steel. This is the finest semi auto...Now: $7.16Was: $8.95 -
On Sale
HK VP9, VP9SK, VP40 Return Spring - Firing Pin
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K VP9/VP9SK, VP40 Firing Pin Pressure Spring Compatible With: HK VP9/VP9SK HK VP9A1 F, VP9A1 K HK VP40Now: $8.96Was: $9.95 -
On Sale
HK UMP, USC Cocking Lever Spring
H&K Heckler & Koch
Now: $8.05Was: $8.95HK UMP & USC Cocking Lever Spring A great spare part to have on hand.Now: $8.05Was: $8.95 -
On Sale
HK UMP, USC Firing Pin Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring This is a common wear and breakage item. This item also frequently becomes lost by end users when field stripping the UMP and USC Bolts. Compatible with: All HK UMP & USC FirearmsNow: $8.96Was: $9.95 -
On Sale
HK416, MR556 FFRS Retaining Spring
H&K Heckler & Koch
Now: $8.99Was: $9.99H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they have to be...Now: $8.99Was: $9.99 -
On Sale
HK416, HK417, MR556, MR762 Forward Assist Plunger Spring
H&K Heckler & Koch
Now: $5.36Was: $5.95H&K HK MR556/MR762/416/417 Forward Assist Plunger Spring New HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK G28 HK M27Now: $5.36Was: $5.95 -
On Sale
HK VP9, VP9SK, VP40 Right Side Slide Release
H&K Heckler & Koch
Now: $17.05Was: $18.95Right Side VP9, VP40 Slide Release Lever Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40Now: $17.05Was: $18.95