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
HK23E, HK13E Firing Pin - Titanium - US
HKP HK Parts
Now: $39.96Was: $49.95HK23E, MM23E, 13E Firing Pin - Titanium Grade 6 weapons grade titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest, strongest firing...Now: $39.96Was: $49.95 -
On Sale
HK416, MR556, HK417, MR762 Selector Lever Clamping Sleeve - Ambi
H&K Heckler & Koch
Now: $5.36Was: $5.95H&K MR556/MR762/416/417 Ambidextrous Selector Clamping Sleeve German H&K factory clamping sleeve for ambidextrous selector levers on MR556, MR762, HK416, and HK417. Compatible With: HK MR556 A1/A4 HK416 HK MR762 A1/A4 HK417Now: $5.36Was: $5.95 -
On Sale
HK416 A5, MR556 A4 Gas Vent Screw - 1.9mm
H&K Heckler & Koch
Now: $29.69Was: $32.99H&K MR556 A4/416 A5 1.9mm Gas Vent Screw German 1.9mm gas vent screw for MR556 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: HK MR556 A4 HK416 A5Now: $29.69Was: $32.99 -
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 -
Out Of StockOn Sale
HK USP Compact LEM Block Spring - Firing Pin
H&K Heckler & Koch
Now: $8.05Was: $8.95H&K HK USPC LEM Firing Pin Block Spring Compatible With: HK USP Compact 9mm - LEM HK USP Compact 40 - LEM HK USP Compact 45 ACP - LEMNow: $8.05Was: $8.95 -
On Sale
HK G36, SL8 Ejector Spring
H&K Heckler & Koch
Now: $32.36Was: $35.95HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.Now: $32.36Was: $35.95 -
On Sale
HK VP9, VP9SK, VP40 Striker - Firing Pin
HKP HK Parts
Now: $31.96Was: $39.95HKP HK VP9/VP9SK/VP40 Firing Pin Striker This firing pin fits all models of VP series pistols. Compatible With: HK VP9, VP9 tactical, VP9L, VP9 OR HK VP9SK VP40, VP40 tacticalNow: $31.96Was: $39.95 -
On Sale
HK417, MR762 Cam Pin
H&K Heckler & Koch
Now: $58.46Was: $64.95H&K HK MR762/HK417 Cam Pin Compatible With: HK MR762 HK 417Now: $58.46Was: $64.95 -
On Sale
HK45 Series, P30 Series Grip Pin - Cylindrical
H&K Heckler & Koch
Now: $5.36Was: $5.95H&K P30 & 45 Series Cylindrical Grip Pin Compatible With: HK 45 HK 45 Compact HK P30 HK P30 V2 HK P30 V3 HK P30L HK P30L V2 HK P30L V3Now: $5.36Was: $5.95 -
On Sale
HK UMP, USC Bolt Catch Spring
H&K Heckler & Koch
Now: $8.05Was: $8.95HK UMP & USC Bolt Catch Spring Compatible With: HK UMP HK USCNow: $8.05Was: $8.95 -
Out Of StockOn Sale
HK 21 (7.62x51/.308) Feed Mechanism Pawl
H&K Heckler & Koch
Now: $62.96Was: $69.95HK 21E & M13 Feed Mechanism PawlNow: $62.96Was: $69.95 -
On Sale
HK416, HK417, MR556, MR762 Takedown Pin - Rear - A4 Style
H&K Heckler & Koch
Now: $39.56Was: $43.95H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin. Will work for A1 and A4 applications. Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16Now: $39.56Was: $43.95