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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HK416, MR556, MR762 Buffer Retainer Pin
H&K Heckler & Koch
$3.95Heckler and Koch HK416, HK MR556, HK MR762 Buffer Retainer Pin Compatible With: HK416, MR556 HK MR762HKP-12704$3.95 -
HK SEF & Navy 3 Position Trigger Spring - Surplus
H&K Heckler & Koch
$4.95HK 90 Series SEF & Navy Style Trigger Return Spring - Surplus For HK 90 series (semi or full-auto). This item will fit any NON-burst trigger pack. Compatible With: MP5, MP5K, SP89, & SP5K HK G3, HK91, PTR HK 93, 33, HK33K, & HK53 Other HK 90...HKP-01092$4.95 -
HK416, MR556 Ejection Port Cover
H&K Heckler & Koch
$55.95H&K HK MR556/416 Ejection Port Cover HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556. This item can also be used on other AR15-style projects to enhance the project with the finest ejection port cover...HKP-15229$55.95 -
HK416, MR556, HK417, MR762 Buffer Retaining Pin
H&K Heckler & Koch
$15.95Heckler and Koch HK MR556, HK MR762, 416/417 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series. Compatible With: HK416, MR556 HK MR762 HK M27HKP-02544$15.95 -
HK MP5, 90 Series Roller Locking Plate - Original Style
H&K Heckler & Koch
$43.95New HK German Roller Retainer Plate For Rollers Original-style roller locking plate. This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use. Compatible With: HK MP5*** HK...HKP-00065$43.95 -
HK MP5K, SP89, SP5K Recoil Rod Assembly - USA
DTAC Dakota Tactical
$34.95HKP MP5K, SP89, & SP5K Recoil Rod Assembly - USA The new US-made Dakota Tactical recoil rod assembly is completely micro-polished and built of the finest materials. This is a great item to have on hand as a spare part as this is a wear and...HKP-02169$34.95 -
HK SL8, G36 Extended Mag Release
H&K Heckler & Koch
$19.95HK SL8 & G36 Oversized Extended Mag Release New HK German SL8, G36, HK243 extended magazine release. A must have upgrade for your HK SL8, Sl8-G36 conversion or G36 firearm. The HK extended magazine release is a drop in replacement and requires zero...HKP-17720$19.95 -
HK Rear Sight Spring - German
H&K Heckler & Koch
$4.95H&K German Rear Sight Spring HK German rear sight spring for rear diopter sights.HKP-00146$4.95 -
Out Of StockOn Sale
HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US - BLEMISHED
USA
Now: $5.95Was: $9.95MP5 & MP5K 9mm Magazine Floor Plate - BLEMISHED VARYING CONDITION. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART PRICE IS PER MAGAZINE Floorplate - SOLD INDIVIDUALLY. MP5,...HKP-17507-BNow: $5.95Was: $9.95 -
HK91, G3 Mag Release Set
H&K Heckler & Koch
$34.95Heckler and Koch Magazine Release Set (Left to Right) for HK91, G3 This magazine catch set consists of 4 pieces and is HK-manufactured. Includes: Magazine Catch Magazine Catch Spring Push Button Clamping Sleeve to retain Push Button Compatible...HKP-00929$34.95 -
HK VP9, P Series Extractor
H&K Heckler & Koch
$54.95HK VP9/P Series Extractor Brand new factory HK German with red loaded chamber indicator present. Compatible With: HK VP9, VP9 Tactical, VP9SK HK VP9A1 F, VP9A1 K HK P30, P30L, P30S & P30SK HK P2000 HK P2000SKHKP-01615$54.95 -
HK90, MP5K Sear Catch - Steel - US
HKP HK Parts
$47.95HKP HK Parts HK90, HK MP5K Sear Catch - Steel - USA Made - Billeted Machined - Steel Hard to find and important for keeping your HK build 922r compliant. This US-made sear counts as one US-compliant part for your rifle or build. Machined from a bar of...HKP-00378$47.95