Stocks / Braces / Slings
Explore our premium selection of HK-specific stocks, braces, and slings at HKParts, designed to enhance comfort and functionality for a variety of HK models. Our offerings include adjustable braces, tactical slings, and folding stocks, perfect for upgrading your HK MP5, HK416, or UMP. Whether for tactical use or recreational shooting, our durable and versatile accessories provide superior firearm support and stability.
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HK MP5 Release Lever - A3 Retractable Buttstock
H&K Heckler & Koch
$19.95HK MP5 A3 Retractable Buttstock Release Lever For use with the newer Navy or F style A3 retractable MP5 stocks. Not for use on the older 1st generation metal levered MP5 stocks. This lever is much easier to break than the older style and a must have item...HKP-16404$19.95 -
HK MP5 "F" Ambidextrous Sling Loop Weldment
H&K Heckler & Koch
$19.95HK German Factory MP5 F Ambidextrous Sling Loop This is the factory HK part that is on all MP5F models. A great upgrade for that custom build or for those who want to have the ability to have an ambidextrous sling loop at the front of the...HKP-00100$19.95 -
On Sale
HK91, G3 A2 Stock - Tan - Saudi Contract - Rare
Other
Now: $168.95Was: $279.95VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Original Saudi Arabian contract G3 A2 fixed stock in tan. Don't miss your chance to get a rare contract G3 stock assembly in this condition. Compatible With: HK91, G3 In spec. clones and custom builds THIS...HKP-99424Now: $168.95Was: $279.95 -
On Sale
HK MP5K, AP5-P End Cap - Incomplete - BLEMISHED
MKE
Now: $19.95Was: $27.95MKE MP5K, AP5-P Incomplete End Cap - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. MKE manufactured end cap for AP5-P and HK MP5K pattern firearms...HKP-99397Now: $19.95Was: $27.95 -
HK G3 Stock Cut Off Section - OD Green
FMP HK CONTRACT
$2.45HK G3 Stock Cut Off Section - OD Green De-milled G3 stock section. Manufactured by FMP on HK tooling. Compatible With: HK G3, HK91 In-spec. clones and custom buildsHKP-22376$2.45 -
AP51 MOE PR Stock - PDW
Magpul
$249.95Magpul Century AP51 PDW MOE PR Stock Designed for the Century AP51 PDW platform, this adapter ensures a precise fit and solid lockup for stock installation. Built for durability and proper alignment, it maintains correct stock geometry and function...HKP-22346$249.95 -
HK MP5K .40/10mm Folding Stock with Adapter
HKP HK Parts
$239.95HKP HK MP5K .40/10mm Folding Stock with Adapter Genuine H&K UMP folding stock completely assembled with the HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment point. Available exclusively at HK Parts. Compatible...HKP-21893$239.95 -
HK21E, HK23E Compression Springs - Inner Buffer, Outer Buffer
H&K Heckler & Koch
$59.95H&K HK21E/23E Inner & Outer Buffer Compression Springs An unissued set of inner and outer buffer compression springs for your HK21E/23E buffer, sourced directly from HK Germany. Most HK21E/23E buffers in the U.S are first-generation, which use...HKP-21856$59.95 -
HK MP5K Brace and Stock or Brace Adapter - 10mm / .40
HKP HK Parts
$239.95HKP HK MP5K .40/10mm Brace with Brace/Stock Adapter Designed to adapt UMP style and SB Tactical braces directly to the 40/10 K platform. Made in the USA and available exclusively at HK Parts Compatible With: HK MP5K .40/10mmHKP-21835$239.95 -
Out Of Stock
HK33, HK91, G3 Heavy Rubber Buttpad For HK A2 Fixed Stocks
H&K Heckler & Koch
$0.00HK German Heavy Rubber Butt Pad The HK German heavy rubber butt pad is a direct replacement to a standard fixed stock butt pad that can be replaced and upgraded in seconds. This butt pad extends the LOP slightly & provides a greater surface area for...HKP-00525$0.00 -
On Sale
HK SL8 Stock Cheek Riser Piece - BLEMISHED
H&K Heckler & Koch
Now: $17.95Was: $34.95HK SL8 Stock Cheek Riser Piece - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY MISSING SPACER COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...HKP-01701-BNow: $17.95Was: $34.95 -
On Sale
HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HK - USED
H&K Heckler & Koch
Now: $63.95Was: $99.95HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HK - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer...HKP-00394-USEDNow: $63.95Was: $99.95