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
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 -
On Sale
HK USP Series Hammer Strut Pin
H&K Heckler & Koch
Now: $7.16Was: $7.95HK USP Series Hammer Strut Pin Cylinder Pin ISO 8750 - 1.5 x 8mm. Compatible With: HK USP 9mm HK USP 40 S&W HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK USP Compact 45 ACPNow: $7.16Was: $7.95 -
On Sale
HK416, MR556 Ejector For Bolt Head
H&K Heckler & Koch
Now: $21.55Was: $23.95H&K HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: HK MR556 HK 416Now: $21.55Was: $23.95 -
On Sale
HK 45, 45T Firing Pin - Titanium
HKP HK Parts
Now: $39.96Was: $49.95Firing Pin HK45 & HK45 Tactical - Titanium - Grade 6 A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium...Now: $39.96Was: $49.95 -
Out Of StockOn Sale
HK45, HK45 Compact, P2000, P2000SK Slim Slide Release Lever w/ Axle
H&K Heckler & Koch
Now: $27.86Was: $30.95HK Slim Slide Release Lever w/ Axle This is the upgraded version that replaced the original early versions. This model has enhanced upgrades to update and improve your HK pistol's function and design features. Compatible With: HK45 HK45...Now: $27.86Was: $30.95 -
On Sale
HK G36, SL8 Extractor
USA
Now: $39.95Was: $67.95G36 & HK SL8 Extractor For Bolt Head Compatible With: All G36 variants SL8-1, SL8-6Now: $39.95Was: $67.95 -
On Sale
HK SL8, G36 Top Rail Screw
H&K Heckler & Koch
Now: $13.46Was: $14.95HK SL8 & G36 Top Rail Screw This rail screw is the standard length rail screw used for all SL8 and G36 top rails. With the exception of the dual and single option models. A must have part and an easy part to loose or strip. Grab yours to have...Now: $13.46Was: $14.95 -
On Sale
HK416, MR556 Catch- Firing Pin
H&K Heckler & Koch
Now: $17.95Was: $19.95HK MR556/416 Firing Pin Catch Compatible With: HK MR556 HK 416Now: $17.95Was: $19.95 -
On Sale
HK UMP Release Lever Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95HK UMP Release Lever Spring For All UMP LowersNow: $8.96Was: $9.95 -
On Sale
HK VP9, VP9SK, VP40 Sear Release Catch Cylindrical Pin
H&K Heckler & Koch
Now: $5.36Was: $5.95Cylindrical Pin For Sear Release Catch VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40Now: $5.36Was: $5.95 -
HK45, HK45 Compact, USP Hammer Axle
H&K Heckler & Koch
$32.95HK USP/45/45C Hammer Axle New HK German manufacture. Compatible With: USP 9mm USP 40 USP Compact 9mm USP Compact 40 HK45 HK45 Compact USP Tactical HK45 Tactical HK45C Tactical$32.95 -
On Sale
HKP HK MP5 (.40 S&W) Locking Roller +2
HKP HK Parts
Now: $9.56Was: $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...Now: $9.56Was: $11.95