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 Mark 23 Left Side Safety Lever
H&K Heckler & Koch
$44.95HK Mark 23 Left Side Safety LeverHKP-01771$44.95 -
HK45, USP V5, V6, V7 Tube
H&K Heckler & Koch
$5.95HK USP/45 Variants 5, 6, & 7 Tube Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACP HK USP Compact 9mm HK USP Compact 357 HK USP Compact 40 HK USP Compact 45HKP-02163$5.95 -
Out Of Stock
HK VP40, USP Compact 9mm, .40 S&W Extractor
H&K Heckler & Koch
$42.95H&K HK VP40/USPC 9mm/.40 S&W Extractor New HK German factory OEM part. Compatible With: HK VP40 (Not for the VP9) HK USP Compact 9mm HK USP Compact 40 & .357 HK USP LEM modelsHKP-01130$42.95 -
Out Of StockOn Sale
HK VP9, VP40 Enhanced Magazine Release - Red- BLEMISHED
HKP HK Parts
Now: $36.95Was: $49.95HK VP9, VP40 Enhanced Magazine Release - Red- BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The oversized magazine release increases the overall...HKP-21099-RE-BNow: $36.95Was: $49.95 -
Out Of StockOn Sale
HK91, G3 Mag Release Set - USED
H&K Heckler & Koch
Now: $19.95Was: $34.95HK91, G3 Mag Release Set - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This magazine catch set consists of 4 pieces and is HK-manufactured. Includes: Magazine...HKP-00929-USEDNow: $19.95Was: $34.95 -
HK91, G3 Retractable Buttstock Retaining Ring - 19x1.2mm
H&K Heckler & Koch
$12.95HK91, G3 19x1.2mm Retaining Ring for A3 Retractable Buttstocks This 19x1.2 retaining ring (circlip-style) is used in the G3 and HK91 A3 retractable buttstock assembly to help retain the locking components in place for proper fit and function. Compatible...HKP-22482$12.95 -
HK MP5, AP5 Full Auto Sear Spring Spacer
MKE
$1.95MKE Distance Sleeve for HK MP5 and AP5 Features: Precision-machined roller used in traditional roller-delayed trigger packs. Ensures perfect trigger geometry, smooth operation, and long-lasting reliability. Compatible With: HK MP5 Century...HKP-22477$1.95 -
HK21E, HK23E Left Receiver Reinforcement Rail Weldment
H&K Heckler & Koch
$14.95H&K 21E/23E Left Receiver Reinforcement Rail Weldment Genuine German-made weldment for left-side receiver reinforcement rail. Precision-machined using the correct steel and milling for you HK21E or HK23E build. Compatible With: HK21E HK23EHKP-21907$14.95 -
On Sale
HK MP5, HK91, G3, HK33 Cocking Tube End Cap - Incomplete - BLEMISHED
H&K Heckler & Koch
Now: $21.95Was: $39.95H&K Cocking Tube End Cap/Dust Cap - BLEMISHED SOLD INDIVIDUALLY - VARYING CONDITION SHOWN INCOMPLETE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This part...HKP-00099-BNow: $21.95Was: $39.95 -
HK MR762 Hammer Complete
H&K Heckler & Koch
$179.95H&K HK MR762 Hammer Complete HK MR762 hammer, hammer spring, & bushing as a complete hammer assembly. Compatible With: HK MR762HKP-16614$179.95 -
HK G41 Dust Cover w/ Ejection Port Door
H&K Heckler & Koch
$29.95HK G41 Dust Cover W/ Ejection Port DoorHKP-02048$29.95 -
Out Of Stock
$9.95