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 USPC .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
Now: $71.95Was: $79.95Recoil Spring Guide Rod Assembly Complete For The HK USP Compact 40 Cal & .357 SIG New HK German factory part. This is a great spare or replacement item to have on hand. Compatible With: HK USP Compact 40 Cal HK USP Compact .357 SIGNow: $71.95Was: $79.95 -
Out Of StockOn Sale
HK45, HK45 Compact V3 Left Side Decock Only Lever
H&K Heckler & Koch
Now: $44.96Was: $49.95Decock Lever ONLY For Left Side Of Frame - HK45, HK45C This control lever is for those who are right-handed and want the control lever on the left-hand side of the frame with the decock function only. Compatible With: HK45, HK45...Now: $44.96Was: $49.95 -
On Sale
HK416, MR556 Roll Pin for Bolt Head Carrier
H&K Heckler & Koch
Now: $6.25Was: $6.95H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier This roll pin is used in the bolt carrier to secure the catch. Compatible With: HK MR556 HK 416Now: $6.25Was: $6.95 -
On Sale
HK MP5, HK94, SP5 Magazine Spring - 20 Round
HKP HK Parts
Now: $5.56Was: $6.9520 Round Magazine Spring - HK MP5, 94, SP5 Fits all factory spec steel 20 round MP5, 94 style curved magazines. A must-have repair and replacement part great for spares.Now: $5.56Was: $6.95 -
On Sale
HK P7M10, P7M13 Retaining Pin
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K HK P7M10/P7M13 Retaining PinNow: $4.46Was: $4.95 -
On Sale
HK USP Compact V1, V5, V9 Control Lever
H&K Heckler & Koch
Now: $39.56Was: $43.95H&K HK USPC V1/5/9 Control Lever This is the lever for the de-cock and safety functions for right-hand shooters (left side of frame). This lever will provide the safety and decock function if you have a Var 1,2 detent installed. This is the most...Now: $39.56Was: $43.95 -
On Sale
HK UMP, USC Lower Locking Pin
H&K Heckler & Koch
Now: $33.26Was: $36.95HK German UMP Lower Locking Pin For use with all HK UMP lowers and USC to UMP conversions. New HK German manufacture.Now: $33.26Was: $36.95 -
On Sale
HK416, MR556, G36, SL8 Gas Piston
USA
Now: $71.95Was: $79.95HK G36, HK SL8, HK 416, & HK MR556 Gas Piston Complete assembly with 3X rings installed and nitrided black. Counts as one US-made compliant part for your SL8-G36 style conversion. This is one of the best parts to use on the conversion as it is one of...Now: $71.95Was: $79.95 -
On Sale
HK UMP, USC Stock Block B Sling Pin - Thumb Screw Style
HDPS
Now: $67.45Was: $74.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin-Thumb Screw Style The original thumb screw version for all stock block B's.Now: $67.45Was: $74.95 -
On Sale
HK33, HK53, HK93 Firing Pin - Titanium
HKP HK Parts
Now: $39.96Was: $49.95HK93, 33, 53 Firing Pin - Titanium A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK 93, HK33 & HK53 weapon system. Get the lightest, strongest firing pin available for your HK firearm. Ideal for...Now: $39.96Was: $49.95 -
On Sale
HK417, MR762 Pin - Gas Block
H&K Heckler & Koch
Now: $7.16Was: $7.95H&K HK MR762/417 Gas Block Pin This is the retaining pin for an HK MR762 gas block. A must have as HK says you have to use new pins once they are removed. Compatible With: HK MR762 HK 417Now: $7.16Was: $7.95 -
On Sale
HK45 Series, USP Series Slide Plate
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK USP Series/45 Series Slide Plate Compatible With: HK USP 9mm, USP .40 HK USP .45 HK USP Compact 9mm & .40 S&W HK USP Compact .45 ACP All HK Tactical Models HK Elite, Expert HK45C, HK45 HK45C Tactical, HK45 TacticalNow: $8.96Was: $9.95