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
HK45 Compact, USP Compact, P2000, P30 Recoil Rod Bushing Sleeve
H&K Heckler & Koch
Now: $6.25Was: $6.95Recoil Rod Bushing Sleeve It is a must-have spare part to have on hand as this is a high-wear item. Compatible With: HK 45 Compact, HK45C Tactical HK USP Compact 9mm HK USP Compact .40 & .357 Sig HK USP Compact .45 ACP HK P2000...Now: $6.25Was: $6.95 -
On Sale
HK Full Auto Paddle Magazine Release Bushing HK German - Used
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K Full Auto Paddle Magazine Release Bushing HK German - Used This part is for use in all 90-series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is not for use on semi-auto HK builds. This part is used for...Now: $4.46Was: $4.95 -
On Sale
HK Mark 23 Retaining Pin - Firing Pin
H&K Heckler & Koch
Now: $8.05Was: $8.95HK Mark 23 Firing Pin Retaining Pin Replacement pin for the Mark 23 firing pin block. A must have part to have on hand.Now: $8.05Was: $8.95 -
On Sale
HK416, HK417, MR556, MR762 Takedown Pin - Rear - A1 Style
H&K Heckler & Koch
Now: $71.95Was: $79.95H&K HK MR556/MR762/416/417 Rear Lower Receiver Locking Pin This is the rear takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the movement of the upper and lower receivers and improve...Now: $71.95Was: $79.95 -
On Sale
HK Spring - Bent Elbow with Roller - Semi - Trigger, Sear Pack
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K Heckler and Koch Semi Trigger Pack Or Sear Pack Elbow Spring W/ Roller Each spring is a great replacement for the converted packs that have bent elbow springs or for those that used the original F/A elbow springs that were bent to shape and are...Now: $26.95Was: $29.95 -
On Sale
HK MP7 Piston Ring
H&K Heckler & Koch
Now: $8.96Was: $9.95HK German MP7A1 Piston Ring For Gas Piston New HK German MP7 piston ring. A high wear & tear item. Works on all HK MP7 models. Each ring is sold individually. 3X are needed for each piston. We suggest ordering 3 and swapping them all at the same time.Now: $8.96Was: $9.95 -
Out Of StockOn Sale
HK Barrel Retaining Pin - 5.15mm
H&K Heckler & Koch
Now: $13.46Was: $14.95H&K Barrel Retaining Pin - 5.15mm This is the barrel pin used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel in the trunnion. Each pin is slightly oversized for...Now: $13.46Was: $14.95 -
On Sale
HK416, MR556, MR762 Clamping Sleeve Safety Lever
H&K Heckler & Koch
Now: $7.16Was: $7.95H&K HK MR556/MR762/416 Clamping Sleeve Safety Lever There are one of the same pin on both sides. Compatible with: HK MR556 HK 416 HK MR762Now: $7.16Was: $7.95 -
On Sale
HK VP9, VP9SK, VP40 Safety Clamp
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK VP9/VP9SK, VP40 Safety Clamp - Black Genuine H&K safety clamp. Compatible With: HK VP9 HK VP9SK HK VP40 HK VP9A1 F HK VP9A1 KNow: $8.96Was: $9.95 -
On Sale
HK45, HK45 Compact, USP, USP Compact LEM Cocking Piece Elbow Hammer Rebound Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95HK LEM Cocking Piece Elbow Hammer Rebound Spring This item is a common wear and replacement item for those who have LEM triggers installed. Compatible With: USP USPC HK45 HK45CNow: $8.96Was: $9.95 -
On Sale
HK416, MR556 Ejection Port Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK MR556/416 Ejection Port Spring Compatible With: HK MR556 HK 416Now: $8.96Was: $9.95 -
On Sale
HK MP5 Hammer Axle
MKE
Now: $1.78Was: $2.99MKE HK MP5 Hammer Axle MKE Hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns an HK 90 series of firearm or trigger packs. Compatible...Now: $1.78Was: $2.99