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 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 -
On Sale
HKP Roller +3 - New - 8.03mm
H&K Heckler & Koch
Now: $8.09Was: $8.99Roller +3 - New - 8.03mm HK Parts Standard (8.03 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...Now: $8.09Was: $8.99 -
On Sale
HK VP9, VP9SK, VP40 Disassembly Safety Spring
H&K Heckler & Koch
Now: $2.66Was: $2.95Elbow Spring For Dismounting Safety HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40Now: $2.66Was: $2.95 -
On Sale
Grayguns HK P30, P2000 Short Reset System Thumb Safety
Grayguns
Now: $81.00Was: $90.00Grayguns HK P30, P2000 Short Reset System Thumb Safety Replicate our custom in-house short reset conversion with a drop-in kit for your HK P30 with thumb safety. Cut from bar stock steel, these kits provide an exacting fit for easy install.The...Now: $81.00Was: $90.00 -
On Sale
HK VP9 Magazine Spring - 17 Round
H&K Heckler & Koch
Now: $8.05Was: $8.95Magazine Spring for 17 Round Magazine - HK VP9, VP9L, VP9 OR This magazine spring fits the VP9 17 round magazines. A must-have replacement item as magazine springs should be replaced on a regular basis as this is a consumable part and is prone to...Now: $8.05Was: $8.95 -
On Sale
HK416A5, MR556 Bolt Catch, Release - Enhanced - Ambi
H&K Heckler & Koch
Now: $58.46Was: $64.95HK German Enhanced ambi 416 Bolt Release - HK 416 A5 The real deal HK German HK416A5 bolt release. Made from hardened steel.Now: $58.46Was: $64.95