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
HK21E, HK23E, PSG1, PTR Extractor
Michaels Machines
$275.95Michaels Machines HK21E, HK23E, PSG1, MSG90 Extractor Replacement extractor for HK21E, HK23E, PSG1, and MSG90 bolt heads. Extractors are a known wear item on these platforms and are no longer produced by HK. The Michaels Machines extractor is a precise,...HKP-21632$275.95 -
HK VP9SK, VP40SK Backstrap - Small - OD Green
H&K Heckler & Koch
$29.95H&K VP9SK, VP40SK Back Strap - Small - OD Green New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18971$29.95 -
Out Of Stock
HK VP9, VP9SK, VP40 Enhanced Slide Cap - Firing Pin Window - Titanium
HKP HK Parts
$59.95Enhanced Slide Plate Cover VP9, VP9SK & VP40 - Titanium With Firing Pin Viewing Window Enhanced HK VP9, VP40 Titanium slide plate in natural titanium alloy. The "enhanced" slide plate cover includes the firing pin viewing window. The enhanced slide...HKP-17943$59.95 -
HK USP Expert Bobbed Hammer
H&K Heckler & Koch
$29.95USP Expert Bobbed Hammer Old Style The USP Expert Hammer works with HK USP Expert variants. Compatible With: HK USP Expert 9mm HK USP Expert 40 HK USP Expert 45HKP-18198$29.95 -
HK G41 Firing Pin Spring
H&K Heckler & Koch
$9.95HK G41 Firing Pin Spring Compatible With: HK G41HKP-16060$9.95 -
HK Mark 23 Hammer
H&K Heckler & Koch
$79.95HK Mark 23 Hammer Factory new hammer for the Mark 23 or SOCOM pistol.HKP-01578$79.95 -
HK P2000 Magazine Disconnect Lever Axle
H&K Heckler & Koch
$5.95H&K HK P2000 Magazine Disconnect Lever AxleHKP-16648$5.95 -
HK USP Firing Pin - New Style - Titanium
HKP HK Parts
$49.95HKP HK USP New Style Titanium Firing Pin 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 pins also carry...HKP-17826$49.95 -
HK USP Buffer Spring Retainer
H&K Heckler & Koch
$6.95H&K HK USP Buffer Spring Retainer Compatible With: HK USP 45 HK USP 40 HK USP 9mmHKP-16232$6.95 -
HK USP, USP Compact Complete Mag Lockout Device
H&K Heckler & Koch
$19.95H&K HK USP/USPC Complete Mag Lockout Device Easily installs and replaces the existing lanyard to the newer style lock out upgrade for the magazine lockout. Used to comply with certain state's laws and for added safety in some conditions and...HKP-16397$19.95 -
Out Of Stock
HK USP, USP Compact Old Style Hammer
H&K Heckler & Koch
$0.00HK USP & USPC Variants 1-4, 9, & 10 Old Style Hammer Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W & .357 HK USP Compact .45 ACP Any USP pre-1995 with the old-style sear...HKP-02766$0.00 -
HK45, HK45 Compact, USP Old Style Bobbed Hammer
H&K Heckler & Koch
$64.95HK USP & USPC Bobbed Hammer - Older Style (without the cutout) This part is compatible with older USP full-size & USPC firearms that have the old-style hammer already. Perfect for those who prefer the shorter, lower profile "bobbed" hammer. This...HKP-14552$64.95