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 MP5, HK94, MP5K, SP89 Firing Pin - Titanium
HKP HK Parts
$49.95HK Parts Titanium Firing Pin for HK MP5, HK MP5K, HK94, and HK SP89 Grade 6 Titanium firing pin. Each was made using the factory HK specifications from original HK German blueprints. This is the finest US made Titanium firing pin available anywhere, at...HKP-17601$49.95 -
HK MP5, HK94 Recoil Rod Assembly - US
USA
$37.95HK MP5, SP5, & HK94 Recoil Rod Assembly - Complete And Micro-Polished All stainless steel rods and ends. This is a great item to have on hand as a spare part. Compatible With: HK MP5, HK SP5, HK94 HK MP5SD HK MP5 full-size clones and...HKP-02168$37.95 -
M-LOK Rail Section - 3 Slots
Magpul
$18.95Magpul M-LOK 3 Slots Rail Section Designed for use with all M-LOK compatible hand guards and forends, M-LOK aluminum rail sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-20495$18.95 -
HK USP, USP Tactical, USP Expert Complete Recoil Assembly
H&K Heckler & Koch
$94.95H&K HK USP/ Tactical/ Expert Complete Recoil Assembly Brand new factory German manufacture. Compatible With: HK USP 45 Tactical HK USP 45 Expert HK USP 45 Elite Tech Note: The USP Tactical recoil assembly can be used in a standard USP 45 without...HKP-01160$94.95 -
HK91, G3 Firing Pin
H&K Heckler & Koch
$19.95HK G3, HK91, PTR 762/.308 Firing Pin HK German, new factory part made from steel. Great for spares as this is a common wear item. Compatible With: HK G3 HK91 HK PTR CETME & C308HKP-00497$19.95 -
Out Of Stock
HK MP5, MP5K Contact Piece for Paddle Mag Release - 9mm - US
HKP HK Parts
$15.95HK MP5, MP5K 9mm Contact Piece - USA Factory correct US manufactured MP5, MP5K 9mm Contact Piece for Paddle magazine release. Each part was made using the same material and manufacturing methods used on the German HK latest production parts. Hard to find...HKP-17403$15.95 -
HK MP5 Recoil Guide Rod Rivet - 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 variantsHKP-16985$0.48 -
HK Handguard Sling Pin - Ambi - Small
H&K Heckler & Koch
$61.95HK German Ambidextrous Small Sling Pin For Forearm This ambidextrous pin will allow the user to attach a sling hook to the sling pin. This will also allow the user to use the sling on either the left or right side.HKP-00077$61.95 -
HK91, G3, HK33, HK53, HK93 Cocking Handle Spring
HKP HK Parts
$3.95HKP Cocking Handle Spring The cocking handle spring is a medium wear component and should be replaced intermittently. Grab a spare to keep with your maintenance gear in case of failure in the field too. Compatible With: HK G3, 91, PTR91 HK...HKP-02465$3.95 -
Trigger Pack Hammer Spring - Extra Power - 5.56 / .223 - 7.62x51 / .308
H&K Heckler & Koch
$14.95H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power New HK German extra power hammer spring for all .308/.223 Semi & Full Auto Trigger Packs. This is a must have spare replacement part for your HK firearm parts bin. The heavy hammer...HKP-16447$14.95 -
HK VP9, USP, USPC 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...HKP-01079$5.95 -
HK VP9, VP9SK Right Side Charging Support
H&K Heckler & Koch
$6.95H&K HKVP9/VP9SK Right Side Charging SupportHKP-16826$6.95