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
Lazy Wolf HK P30 & P2000 SA/DA Spartan Hammer - V1
Lazy Wolf
Now: $134.06Was: $148.95Lazy Wolf HK P30 & P2000 SA/DA Spartan Hammer - V1 Transform the feel and look of your HK P30 or P2000 Single Action/Dual Action pistol with the Lazy Wolf Guns Skeletonized Spartan Hammer. Redesigned geometry yields a superiorly smooth and...Now: $134.06Was: $148.95 -
On Sale
HK33, HK53, HK93, HK21E, 23E Pin - Pivot - Cocking Handle
H&K Heckler & Koch
Now: $17.05Was: $18.95H&K 93/53/33 & HK21E/23E Cocking Handle Pivot Pin This genuine H&K cocking handle pivot pin allows smooth operation of the charging handle assembly. While the nipple on the 21E pin is slightly shorter than the 33 pin, it remains fully...Now: $17.05Was: $18.95 -
On Sale
HK91, G3, MP5 Sear Catch - Steel - New Build
H&K Heckler & Koch
Now: $62.96Was: $69.95Heckler & Koch's Sear Catch Release - Complete For HK 90 Series Trigger Packs New HK German manufacture. Sear/Catch complete with installed detent, spring, and roll pin. Compatible With: HK MP5, HK MP5K HK91 HK G3 HK33, HK53, HK93 PTR Other 90...Now: $62.96Was: $69.95 -
On Sale
HK MP5, HK94, SP5 Magazine Spring - 10 Round
H&K Heckler & Koch
Now: $6.25Was: $6.9510 Round Magazine Spring - HK MP5, 94, SP5 A must-have repair and replacement part great for spares. Compatible With: All factory spec steel 10 round MP5, 94 style curved magazinesNow: $6.25Was: $6.95 -
On Sale
HK VP9, VP9SK, HK VP40 Catch
H&K Heckler & Koch
Now: $25.16Was: $27.95HK Catch VP9, VP9SK & VP40 Compatible With: HK VP9, VP9 Tactical HK VP9A1 F HK VP9A1 K HK VP9SK VP40, VP40 TacticalNow: $25.16Was: $27.95 -
On Sale
HK USP Roll Pin for Hammer
H&K Heckler & Koch
Now: $3.56Was: $3.95H&K HK USP Roll Pin for Hammer Cylindrical pin used for the bobbed hammer and spurred hammer strut among other uses.Now: $3.56Was: $3.95 -
Out Of StockOn Sale
HK416, MR556 Ejector Spring
H&K Heckler & Koch
Now: $35.99Was: $39.99HK 416 & MR556 Ejector Spring Compatible With: MR556 HK 416Now: $35.99Was: $39.99 -
On Sale
HK G36 Left Side Lower Hammer Spring
H&K Heckler & Koch
Now: $8.05Was: $8.95HK G36 Left Side Lower Hammer SpringNow: $8.05Was: $8.95 -
On Sale
HKP HK MP5 (.40 S&W) Locking Roller -6
HKP HK Parts
Now: $9.56Was: $11.95HK US MP540 Undersized Locking Roller, -6 The proper roller size is essential for headspacing the bolt gap correctly. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you...Now: $9.56Was: $11.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Internal Buffer With Break Springs
H&K Heckler & Koch
Now: $16.16Was: $17.95HK German G3, 91, PTR & HK 33, 93 Internal Buffer Brake Spring New HK German Brake Springs for the standard buffer found on the HK G3, 91, PTR & HK93, 33, 53 rear stocks. Compatible With: All standard A2 fixed stock buffersNow: $16.16Was: $17.95 -
On Sale
HK VP9/VP9SK, VP40 Trigger Bar Pin
HKP HK Parts
Now: $7.96Was: $9.95HKP HK VP9/VP9SK, VP40 Elbow Spring Stop PinNow: $7.96Was: $9.95 -
On Sale
HK45, HK 45 Tactical Backstrap - Small - Black
H&K Heckler & Koch
Now: $13.46Was: $14.95H&K 45/45 Tactical Backstrap - Small - Black New HK Manufacture. This item allows you to customize the way your firearm feels in your hand. As this is the smaller backstrap it is an excellent choice for smaller hands or female shooters. Compatible...Now: $13.46Was: $14.95