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 USP Magazine Floorplate - .45 ACP - 10 Round - Extended
H&K Heckler & Koch
Now: $11.95Was: $12.95H&K 10 Round HK USP .45 ACP Extended Floor Plate This is a great part to stock up on as the 10-round tabs are known for breakage, or if you have large hands, the extended floorplate is a must-have upgrade. Compatible With: HK USP .45 Magazine...HKP-01281Now: $11.95Was: $12.95 -
On Sale
Hammer Spring, HK Burst Trigger Packs
H&K Heckler & Koch
Now: $17.95Was: $19.95H&K Hammer Spring For HK Burst Trigger Pack The HK German factory intermediate poundage "satin" gray hammer spring is found in all 9mm, 40/10, and .556/223 burst trigger packs and is proven to be the most reliable and longest-lasting spring for burst...HKP-01111Now: $17.95Was: $19.95 -
On Sale
HK MP5, SP5K Cocking Support Detent
H&K Heckler & Koch
Now: $8.95Was: $9.95Cocking Tube Support Detent For The MP5, 94, MP5K, SP89, & SP5KHKP-01103Now: $8.95Was: $9.95 -
On Sale
HK USP Extractor - Full Size - 9mm, .40 S&W
H&K Heckler & Koch
Now: $49.95Was: $54.95Heckler and Koch 9mm and .40 S&W Extractor for Full Size HK USP New HK German. A great spare and replacement item for your USP 9mm or USP .40 pistol. Compatible With: USP USP Tactical USP Expert USP EliteHKP-00324Now: $49.95Was: $54.95 -
On Sale
HK MP5, MP5K Extractor - Coated and Polished
HKP HK Parts
Now: $38.95Was: $44.95HKP HK MP5/MP5K Extractor - Enhanced - Coated and Polished Built for dependable performance, this coated and polished extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Available...HKP-22181-MNow: $38.95Was: $44.95 -
On Sale
HK416, MR566, HK417 MR762 Buffer Retainer
HK HAUS
Now: $8.95Was: $9.95HK Haus Buffer Retainer for HK416, HK417 New HK USA manufacture for the HK416 and HK417 family of firearms. Made from stainless steel.HKP-20040Now: $8.95Was: $9.95 -
Out Of StockOn Sale
HK MR556, MR762 A4 Safety Lever - Right
H&K Heckler & Koch
Now: $12.95Was: $13.95H&K MR556/MR762 A4 Safety Lever - Right H&K factory right-side selector lever for MR-series ambidextrous safety systems. Compatible With: HK MR762 A1/A4 HK MR556 A1/A4HKP-21966Now: $12.95Was: $13.95 -
On Sale
HK USPC, P2000 Magazine Floorplate - 9mm -13 Round - Pinky Rest
H&K Heckler & Koch
Now: $20.95Was: $22.95New HK German Magazine Floorplate With Finger Rest Compatible With: HK USP Compact 9mm 13-round magazine HK P2000 9mm 13-round magazineHKP-00969Now: $20.95Was: $22.95 -
On Sale
HK UMP, USC Recoil Buffer
H&K Heckler & Koch
Now: $18.95Was: $20.95HK German USC & UMP Recoil Buffer Replaceable spare lower housing or buffer for buffer housings. This is a high wear and replacement item and a must-have for spare parts. Compatible With: HK USC .45 HK UMP modelsHKP-00594Now: $18.95Was: $20.95 -
On Sale
HK USP 9mm, 40 S&W Recoil Spring
H&K Heckler & Koch
Now: $8.95Was: $9.95HK USP 9mm/40 S&W Recoil Spring It is the factory 12-12.5 lb. recoil spring. Fits the 9mm or .40 USP pistols and can also be used as a reduced-weight spring for the HK USP .45 pistol. A great replacement item that should be...HKP-02067Now: $8.95Was: $9.95 -
On Sale
HK USP Detent Plate - V5, V6, V9, V10
H&K Heckler & Koch
Now: $17.95Was: $19.95HK Detent Plate For USP Variant 5, 6, 9, & 10 Conversions This plate, when installed, will allow you to have the "safety" only and NO decock function on your pistol. This plate will fit and work for both left-hand and right-hand setups. Compatible...HKP-01247Now: $17.95Was: $19.95 -
On Sale
HK MR556, MR762 A4 Safety Lever - Left
H&K Heckler & Koch
Now: $11.95Was: $12.95H&K MR556/MR762 A4 Safety Lever - Left Left-side selector lever for MR-series ambidextrous safety systems. Compatible With: HK MR762 A1/A4 HK MR556 A1/A4HKP-21965Now: $11.95Was: $12.95