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 MR556 A4 Hammer Spring
H&K Heckler & Koch
Now: $4.50Was: $5.00H&K MR556 A4 Hammer Spring Genuine H&K hammer spring for the MR556 A4. Compatible With: HK MR556 A4Now: $4.50Was: $5.00 -
On Sale
HK VP9, VP40 Right Side Grip Panel - Large - OD Green
H&K Heckler & Koch
Now: $22.45Was: $24.95H&K VP9, VP40 Right Side Grip Panel - Large - OD Green New HK German manufactured, right side size large. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP Pistol. Compatible With: HK VP9 (Excludes VP9A1 F & VP9A1 K...Now: $22.45Was: $24.95 -
On Sale
HK VP9SK, VP40SK Left Side Grip Panel - Small - Black
H&K Heckler & Koch
Now: $17.05Was: $18.95H&K VP9SK, VP40SK Left Side Grip Panel - Small - Black New HK German manufactured. Left side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SK HK VP40SKNow: $17.05Was: $18.95 -
On Sale
HK P30 Grip Wrap for Small Backstraps - Granulate
Talon Grip
Now: $17.99Was: $19.99TALON Grip - H&K P30 - Granulate Black - Small Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...Now: $17.99Was: $19.99 -
On Sale
HK USP Control Decock Only V4 Safety Lever
H&K Heckler & Koch
Now: $40.46Was: $44.95H&K HK USP Control Decock Only V4 Safety Lever Lever for left-handers to have the de-cocker (no safety) function. The control lever fits on the right side of the frame. Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACPNow: $40.46Was: $44.95 -
On Sale
HK45, HK45 Compact, USP Disconnector
H&K Heckler & Koch
Now: $8.96Was: $9.95HK German USP 45, HK45, & HK45C Disconnector Compatible: HK45 USP9 USP40 USP45 USP Compact 9 USP Compact 40 USP Compact 45Now: $8.96Was: $9.95 -
On Sale
HK45, HK45 Compact, USP, USP Compact LEM Hammer
H&K Heckler & Koch
Now: $62.96Was: $69.95HK USP, USPC, 45, & 45C LEM Hammer LEM Hammer Fits The Following HK Pistols: USP USPC HK45 HK45CNow: $62.96Was: $69.95 -
On Sale
HK G36, SL8 Bolt Catch Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95HK German G36 & SL8 Bolt Catch SpringNow: $8.96Was: $9.95 -
On Sale
HK USC (.45 ACP) Carbine Mag Release Axle
H&K Heckler & Koch
Now: $17.05Was: $18.95HK German USC Magazine Release Axle This is a great replacement as they are prone to breakage and wear. These are also a missing part in some states where bullet buttons are required. This part is compatible with all HK USC...Now: $17.05Was: $18.95 -
On Sale
HK UMP/USC (.40 S&W/.45 ACP/9mm) Slide For Lower
H&K Heckler & Koch
Now: $17.95Was: $19.95HK USC & UMP Slide For Lower - German New HK German USC slide for conversion of UMP lower.Now: $17.95Was: $19.95 -
On Sale
HK USC Locking Lever Axle - .45 ACP
H&K Heckler & Koch
Now: $26.95Was: $29.95HK USC Lower Locking Lever Axle A great item to have on hand as spares. New German HK. Compatible With: All USC lowersNow: $26.95Was: $29.95 -
On Sale
HK MP5 40, 10 Roller - -4
H&K Heckler & Koch
Now: $17.95Was: $19.95HK German MP5 40/10 -4 roller Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for...Now: $17.95Was: $19.95