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
HK90 Series Sear and Trigger Axle
H&K Heckler & Koch
Now: $1.79Was: $1.99HK Sear & Trigger Axle For 90 Series- Used Surplus Condition HK German used sear and trigger axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .197 inches (5.0mm). A great spare and must have spare part for anyone...Now: $1.79Was: $1.99 -
On Sale
HK VP9, VP9SK, VP40 Trigger Spring
H&K Heckler & Koch
Now: $3.56Was: $3.95H&K HK VP9/VP9SK, HK VP40 Trigger Return Spring HK German stock trigger return spring. A must have spare part as the factory spring will wear with use. The TRS can also be damaged upon install if the spring tool is not used to install. Please order...Now: $3.56Was: $3.95 -
On Sale
Semi Auto Shelf For Receiver - Billeted
Now: $17.95Was: $19.95Semi Auto Shelf For Receiver - Billeted HK Semi Auto Shelf milled from one solid billet to HK's factory specifications (no castings here). This is the needed receiver shelf that is welded to the receiver to allow the use of the clipped & pinned...Now: $17.95Was: $19.95 -
On Sale
HK Spring Clip
USA
Now: $1.75Was: $1.95Replacement Spring for HK style push pin - Small A must have replacement item to have on hand. A quick and easy install spring to get your push pins back to working condition. A great replacement for those worn out springs that come loose while in...Now: $1.75Was: $1.95 -
Out Of StockOn Sale
HK MP5, MP5K 9mm Extractor
RCM
Now: $26.95Was: $29.95RCM MP5 & MP5K 9mm Extractor Made from ordnance grade steel and heat treated. These are the latest F type extractor for all HK MP5/94 bolt heads. Perfect to get that out of spec clone or worn out HK bolt working as it should. Made in the USA, these...Now: $26.95Was: $29.95 -
On Sale
HK90 Series Retaining Spring for Ejector Lever Axle
USA
Now: $1.75Was: $1.95Ejector Lever Axle Retaining Spring This is the perfect spring ring to replace your worn out ejector lever axle spring ring. Made to HK spec for the best US replacement part on the market. Replacement of the retaining spring clip is necessary to keep...Now: $1.75Was: $1.95 -
On Sale
HK MP5, MP5K F Style Roller Retainer Plate - 3rd Gen
H&K Heckler & Koch
Now: $13.46Was: $14.95HK German "F" Style 3rd Gen Roller Retainer Plate This is the latest and greatest German design of roller retainer plates found in all of the latest production of HK German bolt heads. The MP5 F roller retainer plate fits true F-style bolt heads only...Now: $13.46Was: $14.95 -
On Sale
HK Recoil Rod Guide Ring For Recoil Rod Assemblies
H&K Heckler & Koch
Now: $7.19Was: $7.99HK Recoil Rod Guide Ring For Recoil Rod Assemblies This item is a high-wear item & is great to have as a spare part. Compatible With: HK MP5 HK 94 HK MP5K HK 91 HK G3 HK 93 HK 33 HK 53 HK 21 (not E guns) Other HK 90 Series Rifles & Pistols.Now: $7.19Was: $7.99 -
On Sale
HKP Cocking Tube End Cap-Steel
HKP HK Parts
Now: $15.96Was: $19.95Cocking Tube End Cap - Steel - US Made Manufactured from solid billet steel and finished in black in a nitride finish. Compatible With: All 90 series HK firearms and clones that use a triple frame/sight towerNow: $15.96Was: $19.95 -
On Sale
HK Magazine Catch, Push Button Roll Pin
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K Magazine Catch, Push Button Roll Pin New HK German-made. The mag catch roll pin is used to attach the magazine catch to the mag release button. Compatible With: HK G3, 91, PTR HK MP5, 94, SP5 HK 93, 33, 53 HK SP89, MP5K,...Now: $4.46Was: $4.95 -
On Sale
HK German Recoil Guide Rod Rivet
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K German Recoil Guide Rod Rivet This rivet holds the stop pin and recoil spring captive and in place to the recoil rod itself. The price is per rivet. New old stock HK German rivet. Compatible With: G3, 91, 33, 93, & 53 MP5, 94 MP5K SP89 HK21...Now: $8.96Was: $9.95 -
On Sale
HK Screw Set for HKP Rail Mount Compensator
HKP HK Parts
Now: $3.96Was: $4.95Replacement Screws for Rail Mount Compensator Replacement screw set for the HK Parts Rail Mount Compensators. This includes (2) screws. Compatible With: All HK Parts Rail Mount CompensatorsNow: $3.96Was: $4.95