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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HK417, MR762, G28 Ejection Port Cover Axle Spring
H&K Heckler & Koch
$9.95H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and spring open. Compatible With: HK MR762 HK 417 HK...HKP-16753$9.95 -
HK45 Compact, USP Compact, P30 Recoil Spring Washer Retainer
H&K Heckler & Koch
$9.95New HK German Recoil Spring Washer Retainer This is the retaining washer that holds the spring captive on the end of the recoil assembly and pushes against the recoil spring. Compatible With: All USP Compact models P2000 P30 HK45 HK45CHKP-01594$9.95 -
Out Of Stock
HK UMP, USC Extractor - .45 ACP
$39.95HK UMP & USC .45 Extractor Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once removed from the carrier, the spring tension is compromised,...HKP-02623$39.95 -
On Sale
HK MP5, HK90 Series Trigger Spring - SEF, Navy
MKE
Now: $2.45Was: $8.95MKE SEF & Navy 3 Position Trigger Spring The MKE trigger spring is an essential upgrade for anyone dealing with worn or broken trigger return springs in surplus trigger packs or as spares for all 90 series owners. These springs are fully compatible...HKP-22225Now: $2.45Was: $8.95 -
HK SL8, G36 Top Rail Screw
H&K Heckler & Koch
$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...HKP-16390$14.95 -
HK45, HK45T Firing Pin - Titanium
HKP HK Parts
$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...HKP-17811$49.95 -
HK P30L Recoil Rod Bushing Sleeve
H&K Heckler & Koch
$39.95HK P30L Recoil Rod Bushing Sleeve Compatible With: HK P30L 9mm HK P30L .40HKP-02435$39.95 -
HK MP5 Locking Roller -6 - .40 S&W
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -6 The proper roller size is essential for headspacing the bolt gap correctly. 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 size you...HKP-17566$11.95 -
Out Of Stock
HK MP5, HK94K, SP89 Firing Pin
POF
$24.95HK Contract MP5, HK94 Firing Pin - POF Made from HK prints and tooling in the POF factory. The USA and German HK offering are a better offering with tighter tolerances and better materials. Compatible With: MP5 HK94 MP5K SP89 SP5K All 9mm, 40/10mm...HKP-18264$24.95 -
Out Of Stock
HK Burst Roller Type Trip Lever - Latest Style
H&K Heckler & Koch
$99.95H&K Burst Roller Type Trip Lever - Latest Style Compatible With: 0,1,3,F 0,1,2,F 0,1,3 0,1,2HKP-01846$99.95 -
Out Of Stock
HK45 Recoil Rod Absorber Bushing
H&K Heckler & Koch
$9.95HK 45 Recoil Rod Absorber Bushing This part is a common wear and replacement part and a must-have for spare parts. Compatible With: HK45 HK45 TacticalHKP-02269$9.95 -
HK USP Series Hammer Strut Pin
H&K Heckler & Koch
$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 ACPHKP-01633$7.95