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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On Sale
HK G36, SL8 Paddle Magazine Release
H&K Heckler & Koch
Now: $17.95Was: $19.95Heckler and Koch Paddle Magazine Release for HK G36 and HK SL8 Compatible With: SL8 G36 G36K G36CHKP-02152Now: $17.95Was: $19.95 -
On Sale
HK416, MR556 Charging Handle Roll Pin
Now: $6.95Was: $7.95HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.HKP-16536Now: $6.95Was: $7.95 -
On Sale
HK VP9, VP9SK, VP40 Trigger Bar Pin
HKP HK Parts
Now: $8.95Was: $9.95HKP HK Parts Elbow Spring Stop Pin for HK VP9, HK VP9SK, and HK VP40HKP-16779Now: $8.95Was: $9.95 -
On Sale
HK Mark 23 Magazine Release
H&K Heckler & Koch
Now: $22.95Was: $24.99Heckler and Koch Magazine Release HK Mark 23 Compatible with: Mark 23HKP-01772Now: $22.95Was: $24.99 -
On Sale
HK G36, SL8 Cocking Handle Spring - US
Now: $8.95Was: $9.95G36 Cocking Handle Spring- US Made Compatible With: G36 All variants SL8 All variantsHKP-18369Now: $8.95Was: $9.95 -
On Sale
HK G36, SL8 Cocking Handle Spring
H&K Heckler & Koch
Now: $9.95Was: $10.95HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variantsHKP-01862Now: $9.95Was: $10.95 -
HK USC, SL8 Buttstock Allen Screw
H&K Heckler & Koch
$17.95Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.HKP-01649$17.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Internal Buffer With Break Springs
H&K Heckler & Koch
Now: $16.95Was: $17.95HK German G3, 91, PTR & HK 33, 93 Internal Buffer Brake Spring New HK German Brake Springs for the standard buffer found on the HK G3, 91, PTR & HK93, 33, 53 rear stocks. Compatible With: All standard A2 fixed stock buffersHKP-17424Now: $16.95Was: $17.95 -
Out Of Stock
HK UMP, USC Lower Bolt Catch
HKP HK Parts
$22.95HK UMP & USC Bolt Catch For Last Round Hold Open New HK USA lower bolt catch. Compatible With: HK UMP HK USCHKP-19565$22.95 -
On Sale
HK416, MR556, MR762 Dowel Pin
Now: $8.95Was: $9.95H&K HK MR556/MR762/416 Dowel Pin Compatible With: HK MR556 HK 416 HK MR762HKP-19528Now: $8.95Was: $9.95 -
On Sale
HK VP9, VP9SK, HK VP40 Catch
H&K Heckler & Koch
Now: $25.95Was: $27.95HK Catch VP9, VP9SK & VP40 Compatible With: HK VP9, VP9 Tactical HK VP9A1 F HK VP9A1 K HK VP9SK VP40, VP40 TacticalHKP-16799Now: $25.95Was: $27.95 -
HK G36, SL8 Barrel Retaining Nut
H&K Heckler & Koch
$29.95HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 VariantsHKP-16341$29.95