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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HK45, USP Spring - Firing Pin
H&K Heckler & Koch
$7.95H&K HK USP/45 Firing Pin Spring Compatible With: HK USP 9mm HK USP 40 HK USP 45 HK USP Tactical models HK USP Expert, HK Elite HK45, HK45 Tactical$7.95 -
HK21 Cocking Handle - Extended Style
HKP HK Parts
$69.95HK Extended Cocking Handle - HK21 Rubberized extended cocking handles for the older style HK21 firearms. This extended cocking handle makes a HUGE difference when trying to charge the HK21 firearm, as it has increased spring pressure and can be a pain to...$69.95 -
HK45, HK45 Compact Ambidextrous Control Lever Kit
H&K Heckler & Koch
$69.95Factory HK German Genuine HK45 & HK45C Ambidextrous Control Lever Kit A must-have upgrade for those who would like to have the ability of both left and right side control levers. Hard to find, easy to install as this is a drop-in part - no...$69.95 -
HK VP9, VP9SK, VP40 Clamping Sleeve For Drop Safety Axle
H&K Heckler & Koch
$6.95Clamping Sleeve For Drop Safety Axle VP9, VP9SK & VP40 This is the roll pin that goes in the side of the slide and retains the drop safety.$6.95 -
HK MP5 Replacement Buffer For Folding Stock Or End Cap
Choate
$3.95Choate MP5 Replacement Buffer For Folding Stock Or End Cap Compatible With: Choate MP5 and MP5K Stocks or End Caps (NOT compatible with MP5 .22 LR)$3.95 -
HK USP, USP, VP40 Extractor Spring
H&K Heckler & Koch
$5.95H&K USP/USPC/VP40 Extractor Spring The extractor spring is one of the hardest working parts of your HK pistol. The extractor spring should be changed every 5K rounds. A must-have spare part to have on hand. Compatible With: HK USP 9, 40 .45...$5.95 -
HK Roller Type Trip Lever
H&K Heckler & Koch
$29.95H&K Roller Type Trip Lever This is a genuine German Heckler & Koch part. This is the newer style trip lever for use with a roller sear catch, not the older friction type. Please Note: May or may not be marked with the X or XX...$29.95 -
HK Rod Rivet - Recoil Guide - Used
H&K Heckler & Koch
$0.48H&K German Recoil Guide Rod Rivet-Used This rivet holds the stop pin and recoil spring captive and in place to the recoil rod itself. Compatible With: G3, 91, 33, 93, 53 MP5, 94 MP5K SP89 HK21 variants$0.48 -
Out Of Stock
HK MP5SD Sealing Ring
H&K Heckler & Koch
$29.95H&K MP5SD Sealing Ring Each HK MP5SD sealing ring is the sealing gasket that seals the SD suppressor against the trunnion on factory HK MP5SD's or factory correct SD conversions. This is a typical wear item as they do degrade and crack. Compatible...$29.95 -
HKP Roller +1 - New - 8.01mm
H&K Heckler & Koch
$8.99Roller +1 - New - 8.01mm HK Parts Standard (8.01 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...$8.99 -
HK45, P30, USP Block - New Style Firing Pin
H&K Heckler & Koch
$16.95H&K USP/P30/HK45 New Style Firing Pin Block A factory Heckler and Koch part. Compatible With: HK USP 45, 40 & 9mm HK USP Tactical, Elite, Expert HK USP Compact 9mm, .40 & .45 HK USPC Tactical 9mm, .40 & .45 HK P30, P30L, P30S &...$16.95 -
HK VP9, VP9SK, HK VP40 Locking Block Pin
H&K Heckler & Koch
$10.95H&K HK VP9/VP9SK, HK VP40 Spring Pin, Dowel Pin For Locking Block HK German manufacture. A special spring pin that has an internal spring for support. A must have item as this roll pin can become damaged with install and removal. Compatible...$10.95