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
HK416, MR556 , HK G36, HK SL8 Gas Piston
USA
Now: $71.95Was: $79.95HK G36, HK SL8, HK 416, & HK MR556 Gas Piston Complete assembly with 3X rings installed and nitrided black. Counts as one US-made compliant part for your SL8-G36 style conversion. This is one of the best parts to use on the conversion as it is one of...Now: $71.95Was: $79.95 -
On Sale
HK G36, SL8 Extractor
H&K Heckler & Koch
Now: $71.95Was: $79.95G36 & HK SL8 German Extractor For Bolt Head New HK German. This is a great item to keep as a spare. Compatible With: All G36 Variants SL8-1, SL8-6Now: $71.95Was: $79.95 -
On Sale
HK33, HK53, HK93 Pin - Firing
H&K Heckler & Koch
Now: $71.95Was: $79.95H&K 93, 53, & 33 (5.56/.223) Firing Pin This is the factory-correct HK German firing pin and is a great replacement part. This is also a great upgrade for your HK 223.556 clones. This part is no longer available from HK as this part is out of...Now: $71.95Was: $79.95 -
On Sale
HK P Series LEM Hammer
H&K Heckler & Koch
Now: $59.36Was: $65.95H&K HK P Series LEM Hammer Factory HK German hammer. Compatible With: HK P30 P30L P30SK HK P2000 P2000SKNow: $59.36Was: $65.95 -
On Sale
HK UMP, USC 9mm / .40 S&W / .45 ACP QD Sling Pin for Stock Block B
HKP HK Parts
Now: $59.96Was: $74.95Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop - Style Pin in your Stock Block B for use of a QD Sling.Now: $59.96Was: $74.95 -
On Sale
HK45 Recoil Complete Rod w/ Spring
H&K Heckler & Koch
Now: $94.45Was: $104.95HK 45 Recoil Complete Rod w/ Spring This is the complete recoil guide assembly for the HK45 pistol. Great item to have on hand for repair or replacement. Compatible With: HK45 HK45 Tactical Please Note: This does not fit the USP .45...Now: $94.45Was: $104.95 -
On Sale
HK MP5 40/10 Extractor
H&K Heckler & Koch
Now: $62.96Was: $69.95New HK MP5 40/10/.357 Latest Production 1.4mm Extractor This is the latest and greatest upgraded extractor made by HK. This is also a great upgrade for the many out-of-spec clones out there. Compatible With: MP5 40 MP5 10 MP5 .357Now: $62.96Was: $69.95 -
On Sale
HK Burst Roller Type Trip Lever - Latest Style
H&K Heckler & Koch
Now: $89.95Was: $99.95H&K Burst Roller Type Trip Lever - Latest Style Compatible With: 0,1,3,F 0,1,2,F 0,1,3 0,1,2Now: $89.95Was: $99.95 -
Out Of StockOn Sale
HK P7 Series Drop Safety Catch
H&K Heckler & Koch
Now: $61.16Was: $67.95HK P7 Series Drop Safety Catch Compatible With: P7 PSP P7M8 P7M10 P7M13Now: $61.16Was: $67.95 -
On Sale
HK P30, P30S 9mm Complete Recoil Assembly
H&K Heckler & Koch
Now: $80.95Was: $89.95HK P30 & P30S 9mm Recoil Rod Assembly - Complete A genuine German Heckler & Koch part. Fresh springs help the pistol function as it was designed. Compatible With: P30 P30SNow: $80.95Was: $89.95 -
Out Of StockOn Sale
HK 21 (7.62x51/.308) Feed Mechanism Pawl
H&K Heckler & Koch
Now: $62.96Was: $69.95HK 21E & M13 Feed Mechanism PawlNow: $62.96Was: $69.95 -
On Sale
HK P9S 9mm Extractor
H&K Heckler & Koch
Now: $71.95Was: $79.95HK P9S 9mm Extractor This extractor is no longer manufactured and is hard to find. This is the last remaining stock that HK had in inventory. Last call for this part.Now: $71.95Was: $79.95