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 E Clip For Carry Handle - 7.62x51 / .308 - 5.56 / .223
H&K Heckler & Koch
$9.95HK German "E" Clip For Carry Handle For HK21 & HK23E folding carry handles. Clips are sold individually.HKP-00579$9.95 -
HK MP5, AP5 Firing Pin
MKE
$14.95MKE HK MP5/AP5 Firing Pin - 9mm MKE firing pin for HK MP5 platforms. Compatible With: HK MP5/SP5 Century Arms AP5/AP5P Zenith ZF-5/ZF-5K PTR 9CT/9KTHKP-22243$14.95 -
HK417, MR762A4 Bolt Catch, Release - Ambi
H&K Heckler & Koch
$53.95Heckler and Koch MR762 A4 Bolt Catch/Release - Ambi Factory ambidextrous bolt catch lever for the MR762 A4. The A4 variant of the MR762 introduced ambi controls for the bolt catch/release not previously available on the A1 variant...HKP-21960$53.95 -
HK UMP, USC Hammer Spring - Right - US
USA
$9.95HK UMP & USC Right Side Hammer Spring For Lowers - USAHKP-19557$9.95 -
HK G36, HK SL8 Bolt Catch USF
USA
$14.95HK G36 & SL8 Bolt Catch On AR-15 systems this would be similar to a cam pin. Compatible With: G36, G36K, G36C Sl8 variantsHKP-19122$14.95 -
HK VP9, VP9SK, VP40 Slide Plate
H&K Heckler & Koch
$13.95H&K VP9, VP9SK, VP40 Slide Plate New German HK manufacture. Slide plate for the rear of the pistol. Made of polymer. Compatible With: HK VP9, VP9 Tactical, VP9 OR HK VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16834$13.95 -
Out Of Stock
HK45C, USPC Firing Pin
H&K Heckler & Koch
$57.95H&K HK USPC/45C Firing Pin A great spare part to have on hand for wear and breakage parts. A factory German HK OEM part. Compatible With: HK45 Compact HK45C Tactical HK USP Compact 45 HK USPC Tactical 45HKP-01288$57.95 -
HK416, MR556 Extractor
H&K Heckler & Koch
$64.95HK 416 & MR556 Bolt Head Extractor New HK - German Compatible With: HK MR556 HK 416 CR556 HK M27HKP-00036$64.95 -
HK416, MR556 Firing Pin Catch
H&K Heckler & Koch
$19.95HK MR556/416 Firing Pin Catch Compatible With: HK MR556 HK 416HKP-16846$19.95 -
HK UMP Firing Pin Retainer Pin
H&K Heckler & Koch
$7.95HK UMP Firing Pin - Retainter Pin This is the pin that trips the trip lever on the UMP lower. Compatible With: HK UMPHKP-01894$7.95 -
HK91, G3 Extractor - Enhanced Coated Polish
HKP HK Parts
$24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...HKP-22182-M$24.95 -
HK VP9, VP9SK, VP40 Sear Release Catch Cylindrical Pin
H&K Heckler & Koch
$6.95Cylindrical Pin For Sear Release Catch VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40HKP-16803$6.95