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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Out Of StockOn Sale
HK MP5, HK33, HK53, HK93, HK91, G3 Locking Roller for Bolt Head - 8.04mm
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K +4 Roller For Bolt Head 8.04mm - Over-Sized New HK German not surplus or used goods. The correct roller is essential for proper head spacing and the bolt gap. Compatible With: HKG3, 91 & PTR HK93, 33, 53 HK MP5, MP5K Cetme, C308 Clones...Now: $26.95Was: $29.95 -
On Sale
HK VP9, VP9SK, VP40 Clamping Sleeve Insert, Ejector Housing
H&K Heckler & Koch
Now: $1.75Was: $1.95Clamping Sleeve For Insert, Ejector Block Housing For HK VP9, VP40 This is the factory correct roll pin for holding the ejector block housing in the frame. New HK German manufacture. Compatible With: HK VP9 HK VP9SK HK VP40Now: $1.75Was: $1.95 -
On Sale
HK VP9, VP9SK, VP40 Slide Release Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K VP9/VP9SK, VP40 Slide Release Pressure Spring Pressure Spring for Slide Release HK VP9, HK VP40. Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40Now: $8.96Was: $9.95 -
On Sale
HKP UMP/USC (.40 S&W/.45 ACP/9mm) Recoil Buffer
Now: $10.75Was: $11.95HKP USC & UMP Recoil Buffer Replaceable spare lower housing or buffer for buffer housings. This is a high wear & replacement item and a must have for spare parts. Compatible With: HK USC .45 HK UMP modelsNow: $10.75Was: $11.95 -
Out Of StockOn Sale
HK VP9, VP9SK Left Side Charging Support
H&K Heckler & Koch
Now: $5.36Was: $5.95Charging Support, Cocking Aid - Left Side - VP9 & VP9SK Replacement cocking aid for the slide. German HK. Compatible With: VP9 VP9 Tactical VP9SKNow: $5.36Was: $5.95 -
On Sale
HK90 Series Hammer Axle For Trigger Pack
H&K Heckler & Koch
Now: $2.49Was: $2.77H&K 90 Series Hammer Axle For Trigger Pack HK German used hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns an HK 90 series of...Now: $2.49Was: $2.77 -
On Sale
HK UMP, USC Picatinny Rail Screw
Now: $0.68Was: $0.75HK UMP/USC (.40 S&W/.45 ACP/9mm) Picatinny Rail Screw Good spares to have on hand as screws can get damaged or lost.Now: $0.68Was: $0.75 -
On Sale
HK Roller +7 - New - 8.07mm
HKP HK Parts
Now: $7.19Was: $8.99Roller +7 - New - 8.07mm HK Parts Standard (8.07 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...Now: $7.19Was: $8.99 -
On Sale
HK33, HK53, HK93 Rear Sights Windage Screw
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K Rear Sights Windage Screw - HK 90 Series This is a hard-to-find rear sight screw new from HK Germany - not surplus.Now: $4.46Was: $4.95 -
On Sale
HK45 Compact, P30, USP Compact Spring- Firing Pin
H&K Heckler & Koch
Now: $8.05Was: $8.95HK P30/USPC/45C/P2000 Firing Pin Spring A must have spare replacement part to keep on hand and to swap out during pistol servicing. Compatible With: HK USP Compact 9mm HK USP Compact 40 & .357 HK USP Compact 45 HK P2000 Series HK P2000SK Series HK...Now: $8.05Was: $8.95 -
On Sale
HK Locking Washer - Rear Sights
HKP HK Parts
Now: $2.36Was: $2.95HKP Rear Sights Locking Washer HK German rear sights toothed locking washer used in perfect working order.Now: $2.36Was: $2.95 -
Out Of StockOn Sale
HK MP5, MP5K Contact Piece for Paddle Mag Release - 9mm - US
HKP HK Parts
Now: $12.76Was: $15.95HK MP5, MP5K 9mm Contact Piece - USA Factory correct US manufactured MP5, MP5K 9mm Contact Piece for Paddle magazine release. Each part was made using the same material and manufacturing methods used on the German HK latest production parts. Hard to find...Now: $12.76Was: $15.95