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 Safety Spring - Firing Pin
H&K Heckler & Koch
Now: $6.25Was: $6.95H&K HK VP9/VP9SK, VP40 Drop Safety Elbow Spring Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40Now: $6.25Was: $6.95 -
On Sale
HK416, MR556, MR762 Forward Assist Assembly
H&K Heckler & Koch
Now: $67.45Was: $74.95H&K HK MR556/MR762/416 Forward Assist Assembly H&K Germany factory MR556 & HK416 forward assist assembly complete. Compatible With: HK MR556 HK 416 HK MR762Now: $67.45Was: $74.95 -
Out Of StockOn Sale
HK45, HK45 Compact, USP, USP Compact Control Latch
H&K Heckler & Koch
Now: $15.25Was: $16.95Control Latch Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .45 ACP HK45, HK45 Tactical HK45 Compact, HK45C Tactical HK Tactical, Elite & Expert ModelsNow: $15.25Was: $16.95 -
On Sale
HK MP5 Magazine Release Set
H&K Heckler & Koch
Now: $166.45Was: $184.95H&K Magazine Release Set This is the complete magazine release kit that includes both the paddle mag release and standard left-to-right mag release on your HK 9mm rifle or pistol build. Compatible With: MP5, MP5K style 9mm models Set...Now: $166.45Was: $184.95 -
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...Now: $26.95Was: $29.95 -
On Sale
HK 416, MR556, G36, SL8 Gas Piston
Nefarious Arms
Now: $67.45Was: $74.95Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated gold for added protection and an overall great part. Compatible...Now: $67.45Was: $74.95 -
On Sale
HKP HK 416 Ejection Port Axle
H&K Heckler & Koch
Now: $4.46Was: $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.Now: $4.46Was: $4.95 -
On Sale
HK416, HK417, MR556, MR762 Bolt Catch Spring
H&K Heckler & Koch
Now: $6.25Was: $6.95H&K HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417Now: $6.25Was: $6.95 -
On Sale
HK P30, P2000 Trigger Bar Detent Spring
H&K Heckler & Koch
Now: $5.36Was: $5.95HK P30 & P2000 Trigger Bar Detent Spring Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P30 HK P30L HK P30SK HK P2000 HK P2000SKNow: $5.36Was: $5.95 -
On Sale
HK416, HK417, MR556, MR762 Clamping Sleeve
H&K Heckler & Koch
Now: $5.36Was: $5.95H&K HK 416/417/MR556/MR762 Clamping Sleeve Compatible With: HK416 HK417 MR556 MR762Now: $5.36Was: $5.95 -
On Sale
HK45, HK45C, USP, USPC Detent Plate For V1 & V2
H&K Heckler & Koch
Now: $5.36Was: $5.95Detent 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...Now: $5.36Was: $5.95 -
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