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 9mm, .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
Now: $58.46Was: $64.95H&K HK USP 9mm/.40 S&W Recoil Rod Assembly New HK German USP full size USP 9/40 recoil assembly complete. A great spare part to have on hand as the recoil spring is a high-wear item. Compatible With: HK USP 9mm HK USP .40Now: $58.46Was: $64.95 -
On Sale
HK P7M8, P7M13 Detent - Gas Piston
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK P7M8/P7M13 Detent, Piston Compatible With: P7M8 P7M13Now: $8.96Was: $9.95 -
On Sale
HK VP9, VP9SK, VP40 Main Spring - Firing Pin
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin German HK. Compatible With: VP9 VP9 Tactical VP9SK VP40 VP40 TacticalNow: $8.96Was: $9.95 -
On Sale
HK 416/417 Buffer Retainer
HK HAUS
Now: $8.96Was: $9.95HK 416/417 Buffer Retainer New HK USA manufacture for the HK 416 / 417 family of firearms. Made from stainless steel.Now: $8.96Was: $9.95 -
On Sale
HK45, P30, P2000, USP Stop Disc - Recoil Spring
H&K Heckler & Koch
Now: $4.46Was: $4.95HK 45, P30, P2000, & USPC Recoil Spring Washer Retainer This disk supports and keeps the recoil spring centered and captive on the recoil rod itself. Compatible With: HK45, HK45 Tactical HK45 Compact, HK45 Compact Tactical USP Compact, USP...Now: $4.46Was: $4.95 -
On Sale
HK UMP, G36 Sear Spring
H&K Heckler & Koch
Now: $8.05Was: $8.95HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.Now: $8.05Was: $8.95 -
On Sale
HK45, HK45 Compact, USP, USP Compact New Style Hammer
H&K Heckler & Koch
Now: $50.36Was: $55.95H&K HK USP/USPC/45/45C New Style Hammer Will work for USP/USPC variants 1-4, 9 & 10. This part replaces the older HK hammer without the sear cutout (part #214825). Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact...Now: $50.36Was: $55.95 -
Out Of StockOn Sale
HK416, MR556 Magazine Catch
H&K Heckler & Koch
Now: $45.86Was: $50.95H&K HK MR556/416 Magazine Catch New HK German manufacture magazine catch for the HK 416 and MR556 family of firearms. Compatible With: HK MR556 HK 416Now: $45.86Was: $50.95 -
On Sale
HK VP9, VP9SK, VP9 Match, VP9 Tactical, VP40, VP40 Tactical Magazine Release/Catch
H&K Heckler & Koch
Now: $22.45Was: $24.95H&K HK VP9/VP9SK/VP9 Match/Tactical, HK VP40/Tactical Magazine Release/Catch New HK German manufacture. Compatible With: HK VP9, VP9 Tactical HK VP9SK HK VP40, VP40 TacticalNow: $22.45Was: $24.95 -
On Sale
HK416, MR556, HK417, MR762 Magazine Catch Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95HK MR556, HK 416 & MR762 & 417 Magazine Catch Spring HK German manufacture. Compatible With: HK MR556 HK 416, M27 HK MR762 HK 417, G28 AR15, M4 & M16 firearmsNow: $8.96Was: $9.95 -
On Sale
HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED
HKP HK Parts
Now: $7.46Was: $19.95HKP HK VP9/VP40 Enhanced Support Sleeve COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The support sleeve in the VP series pistols is a crucial component that...Now: $7.46Was: $19.95 -
Out Of StockOn Sale
HK Mark 23, SOCOM Firing Pin - Titanium
HKP HK Parts
Now: $39.96Was: $49.95Ultimate Firing Pin Mark 23, Socom - Titanium - Grade 6 A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium...Now: $39.96Was: $49.95