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 StockOn Sale
HK Sling Pin - Small - Quick Detach Attachment
HKP HK Parts
Now: $30.36Was: $37.95HKP Quick Detach Sling Attachment Sling Pin - Small The small push pin is used to retain the forearm to the receiver on the 90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for the...Now: $30.36Was: $37.95 -
On Sale
HK MP5, MP5K Extractor - 9mm - Enhanced
HKP HK Parts
Now: $27.96Was: $34.95HK MP5, MP5K 9mm Extractor - Latest Generation Style HK Parts offers the finest US made 9mm "F" type extractor for all HK MP5/94 bolt heads. CNC'd from a solid billet of ordnance grade steel for superior function & durability. Each 9mm extractor has...Now: $27.96Was: $34.95 -
On Sale
HK416, MR556 Gas Block Roll Pin
H&K Heckler & Koch
Now: $5.36Was: $5.95HK 416 & MR556 Gas Block Pin This is the retaining pin for an HK 416 gas block. A must-have, as HK recommends using new pins once they are removed or damaged. Size: 5 x 18 mm.Now: $5.36Was: $5.95 -
On Sale
HK MP5SD Sealing Ring - Enhanced
HKP HK Parts
Now: $7.96Was: $9.95HKP MP5SD Sealing Ring - Enhanced The enhanced sealing ring is made from a newer, longer-lasting material as well as having a slightly thicker profile for secure sealing. The MP5SD sealing ring is the gasket that seals the SD suppressor against the...Now: $7.96Was: $9.95 -
On Sale
HK Oversized Barrel Retaining Pin - 5.25mm
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K Oversized Barrel Retaining Pin - 5.25mm 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...Now: $8.96Was: $9.95 -
On Sale
HK VP9, VP9SK, VP40 Enhanced Support Sleeve
HKP HK Parts
Now: $15.96Was: $19.95HKP HK VP9/VP40 Enhanced Support Sleeve The support sleeve in the VP series pistols is a crucial component that allows for the removal of the slide plate, firing pin assembly, and other parts. The factory version is made from polymer, which can wear down...Now: $15.96Was: $19.95 -
On Sale
HK USP, P2000SK, HK45CT Match Trigger Return Spring
H&K Heckler & Koch
Now: $8.05Was: $8.95HK Pistol Match Trigger Return Spring This is the TRS that is in the Match trigger kit. This spring works better with the SA/DA and is lighter than the standard trigger return spring. This is a great spare part to have on hand...Now: $8.05Was: $8.95 -
On Sale
HK MP5, HK94 Spring - Firing Pin
H&K Heckler & Koch
Now: $8.96Was: $9.95HK Heckler & Koch HK94, MP5 Spring - Firing Pin German Fits all of the MP5, SP5, SP5K, MP5K 9mm and 40/10 Variants including MP5, 94 clones. The firing pin is one of the most common repair and replacement items. Compatible...Now: $8.96Was: $9.95 -
On Sale
HK MP5, HK94 Spring - Firing Pin - Enhanced
HKP HK Parts
Now: $3.96Was: $4.95MP5 & HK94 Firing Pin Spring - Enhanced The "Enhanced" firing pin spring was analyzed and engineered from scratch with the latest in performance spring technology and an emphasis on reducing stress on the spring and increasing cycle life by 500%...Now: $3.96Was: $4.95 -
On Sale
HK90 Series Roller for Bolt Head 8.00mm - Standard
H&K Heckler & Koch
Now: $25.16Was: $27.95H&K Roller For Bolt Head 8.00mm - Standard The 8mm roller is the proper roller size for the standard "zero" function. The correct 8mm roller is essential for proper head spacing and bolt gap. New HK German, not surplus or used goods, that are worn...Now: $25.16Was: $27.95 -
On Sale
HK GSG-5 Push Pin Upgrade Kit
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K GSG-5 Push Pin Upgrade Kit This item is a set of genuine HK German factory push pins that will upgrade all your GSG-5 rifles or pistols to quick take-down push pins. This is one of the most common and desirable upgrades available for your GSG5...Now: $26.95Was: $29.95 -
On Sale
HK Sling Pin - Large - Quick Detach Attachment
HKP HK Parts
Now: $30.36Was: $37.95HKP Quick Detach Sling Attachment Sling Pin - Large The large stock push pin is used to retain the stock to the receiver on the 90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...Now: $30.36Was: $37.95