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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HK51, PTR PDW MOE PR Stock
Magpul
$249.95Magpul HK51, PTR PDW MOE PR Stock - Black Designed for the PTR PDW platform, this adapter ensures a precise fit and secure lockup for stock installation. Features: Secure lockup for repeatable seating and zero retention High-strength aluminum...$249.95 -
Out Of StockOn Sale
HK416, MR556 Mil-Spec German E1 Stock - Black - USED
H&K Heckler & Koch
Now: $167.95Was: $222.95H&K HK MR556/416 Mil-Spec German E1 Stock - Black - USED ONLY 1 UNIT AVAILABLE - AS PICTURED - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. The HK E1 Buttstock fits mil-spec buffer...Now: $167.95Was: $222.95 -
HK MP5 Stock or Brace Adapter - A2 - .22LR
HKP HK Parts
$124.95HK MP5 .22LR A2 Stock Adapter The MP5 .22LR adapter provides a solid mounting interface to add an HK91/G3 A2 stock section. Features: Ambidextrous QD sling attachment points Easy installation with included hardware CNC machined from aircraft-grade...$124.95 -
Out Of Stock
B&T GHM9, GHM45, KH9 Stock Conversion Kit
B&T Brugger & Thomet
$165.00B&T GHM9 Stock Conversion Kit Converts the telescopic brace into a telescopic stock or can be used as a replacement for a damaged unit. Compatible with B&T telescopic braces BT-20517 and BT-20527. Includes: Buttplate Extension...$165.00 -
On Sale
HK MP5 Folding Helmet Stock - Adjustable Length - USED
B&T Brugger & Thomet
Now: $209.96Was: $379.95B&T HK MP5 Folding Helmet Stock - Adjustable Length - USED ONLY 3 UNITS AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Swiss...Now: $209.96Was: $379.95 -
B&T APC9, APC45 Stock Adapter
B&T Brugger & Thomet
$289.95B&T APC9, APC45 Stock Adapter Factory B&T stock adapter to fit stocks and braces to APC9 and APC45 platforms. Adapts: B&T UMP folding stock to APC9/APC45 SB Tactical folding brace to APC9/APC45$289.95 -
HK MR762 A4 Buffer Tube
H&K Heckler & Koch
$95.95H&K MR762 A4 Buffer Tube Factory German-made buffer tube for the MR762 A4. Compatible With: HK MR762 A1/A4$95.95 -
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...$239.95 -
HK416, MR556 Complete Buffer Tube
H&K Heckler & Koch
$176.95H&K HK416, MR556 Complete Receiver Extension/Buffer Tube Genuine German complete receiver extension for the 416 based 5.56 / .223 platforms. Compatible With: HK416 MR556$176.95 -
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...$59.95 -
HK MP5K Stock or Brace Adapter - 10mm / .40 S&W - Picatinny Rail
HKP HK Parts
$129.95HKP HK MP5K .40/10 Picatinny Rail Brace/Stock Adapter Open your MP5K up to a vast range of brace and stock options with our Picatinny rail stock adapter. Designed specifically for the MP5K 40 cal and 10mm platforms. Available exclusively at...$129.95 -
HK G36 Helmet Stock
B&T Brugger & Thomet
$280.00B&T HK G36 Helmet Stock The B&T G36 helmet stock was designed to clearance the operator's helmet when viewing the target through the rifle's sights. This military derived design is precision made in Switzerland. Compatible With: HK G36$280.00