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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HK G36, SL8 Cocking Handle Axle Pin
H&K Heckler & Koch
$11.95HK German G36 & SL8 Cocking Handle Axle Pin This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear. Compatible With: HK G36 HK SL8HKP-01877$11.95 -
HK UMP Extractor - 9mm
H&K Heckler & Koch
$60.95New HK German USC/UMP 9mm Extractor This is the perfect spare part to have for your UMP or USC 9mm conversion. Hard to find and only available here at HKPARTS.HKP-00266$60.95 -
HK45, HK45 Compact V2 Right Side LH Lever
H&K Heckler & Koch
$31.95HK 45 & 45C V2 Right Side LH Lever This is the control lever for left-hand shooters. This would be the lever on the right side of the frame for left-hand shooters. The V2 left lever will allow for both the safety...HKP-02416$31.95 -
HK417, MR762 Magazine Catch Spring
H&K Heckler & Koch
$9.95Heckler and Koch Magazine Catch Spring for HK417 and HK MR762 New HK German manufacture. Factory correct magazine catch for the magazine release. Compatible With: HK417, MR762 G28HKP-16520$9.95 -
Out Of Stock
HK45, HK45 Compact V3 Left Side Decock Only Lever
H&K Heckler & Koch
$49.95Decock Lever ONLY For Left Side Of Frame - HK45, HK45C This control lever is for those who are right-handed and want the control lever on the left-hand side of the frame with the decock function only. Compatible With: HK45, HK45...HKP-02706$49.95 -
HK P30 Series Left Slide Release Lever
H&K Heckler & Koch
$54.95Slide Release Lever Left - P30 Latest HK production. Compatible With: P30 P30SKHKP-01879$54.95 -
HK USP Decocking Lever - Left Side V1, V5, V9
H&K Heckler & Koch
$59.99H&K HK USP Left Side V1/5/9 Decocking Lever A Heckler and Koch genuine part. This item allows a right-handed shooter to have the safety and or decocking functions on the LEFT side of the firearm. This is to be used in conjunction with the correct...HKP-01169$59.99 -
HK G36, SL8 Paddle Magazine Release
USA
$17.95US Magazine Paddle Release for HK G36 and HK SL8 HK G36 Mag Release or mag catch. Compatible With: SL8 G36 G36K G36CHKP-18222$17.95 -
HK416, MR556 Extractor Axle Pin
H&K Heckler & Koch
$11.95HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK MR556 HK 416 M27 HK 416 A5HKP-00040$11.95 -
Out Of Stock
HK MP5 Barrel Retaining Pin - 5.015mm
H&K Heckler & Koch
$14.95H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel. Compatible With: HK MP5, SP5, MP5K,...HKP-22284$14.95 -
HK MP5 Locking Roller +4 - .40 S&W
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, +4 The proper roller size is essential for proper headspacing of bolt gap. 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-17562$11.95 -
HK MP5, HK91, G3, HK33 Cocking Tube Detent End Cap
H&K Heckler & Koch
$4.95HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.HKP-18050$4.95