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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Out Of Stock
HK45C, USPC Firing Pin
H&K Heckler & Koch
$57.95H&K HK USPC/45C Firing Pin A great spare part to have on hand for wear and breakage parts. A factory German HK OEM part. Compatible With: HK45 Compact HK45C Tactical HK USP Compact 45 HK USPC Tactical 45HKP-01288$57.95 -
On Sale
HK416, MR556 Extractor
H&K Heckler & Koch
Now: $58.95Was: $64.95HK 416 & MR556 Bolt Head Extractor New HK - German Compatible With: HK MR556 HK 416 CR556 HK M27HKP-00036Now: $58.95Was: $64.95 -
On Sale
HK91, G3 Extractor - Enhanced Coated Polish
HKP HK Parts
$21.95 - $24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...HKP-22182-M$21.95 - $24.95 -
On Sale
HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm
H&K Heckler & Koch
$26.95 - $29.95Heckler and Koch MR762 A4 Gas Vent Screws German gas vent screw for MR762 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm...HKP-21954-M$26.95 - $29.95 -
On Sale
HK VP9, VP9SK, VP40 Sear Release Catch Cylindrical Pin
H&K Heckler & Koch
Now: $5.95Was: $6.95Cylindrical Pin For Sear Release Catch VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40HKP-16803Now: $5.95Was: $6.95 -
On Sale
HK USP Lanyard Loop Insert Pin
H&K Heckler & Koch
Now: $17.95Was: $19.95HK USP Lanyard Loop Insert Pin Compatible With: HK USP 9mm HK USP 40 HK USP 45HKP-01930Now: $17.95Was: $19.95 -
On Sale
HK416, MR556 Ejector For Bolt Head
H&K Heckler & Koch
Now: $21.95Was: $23.95H&K HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: HK MR556 HK 416HKP-00037Now: $21.95Was: $23.95 -
On Sale
HK G36, SL8 Cocking Handle
H&K Heckler & Koch
Now: $50.95Was: $55.95HK Cocking Handle For G36 & SL8 Bolt CarriersHKP-01853Now: $50.95Was: $55.95 -
On Sale
HK MP5 Locking Roller +2 - .40 S&W
HKP HK Parts
Now: $10.95Was: $11.95HK US MP5 .40 S&W Locking Roller, +2 The proper roller size is essential for proper headspacing of bolt gap. +2 / 8.02mm Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the...HKP-17564Now: $10.95Was: $11.95 -
On Sale
HK MP5K, HK90 Series Burst Trigger Sear Complete
H&K Heckler & Koch
Now: $53.95Was: $59.95Heckler & Koch's Sear Catch for HK90 Series and HK MP5K - Steel - German For Burst Trigger Packs Compatible With: 0,1,3,F 0,1,2,F 0,1,3 0,1,2HKP-17028Now: $53.95Was: $59.95 -
On Sale
HK417, MR762, G28 Firing Pin
H&K Heckler & Koch
Now: $58.95Was: $64.95H&K HK MR762/417/G28 Firing Pin This firing pin is a must have wear and tear replacement item for your MR762 or HK 417 Firearm. Compatible With: MR762 HK 417 G28HKP-16613Now: $58.95Was: $64.95 -
On Sale
HK G36, SL8, HK417, MR762 Bolt Head Ejector
H&K Heckler & Koch
Now: $17.95Was: $19.95H&K HK G36/SL8/MR762/417 Bolt Head Ejector Compatible With: HK MR762 HK 417 HK G36 HK SL8HKP-01868Now: $17.95Was: $19.95