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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On Sale
HK SP5 Stock with HKP Adapter
HKP HK Parts / GSG9
Now: $189.95Was: $259.95GSG9 US Folding Stock with HK Parts Adapter for HK SP5 GSG9 US folding stock paired with an HK Parts SP5 adapter. Configured as a direct-fit stock assembly for the SP5 platform. Specifications: CNC machined adapter Solid billet aircraft-grade...HKP-20662Now: $189.95Was: $259.95 -
HK A3 Buttstock Protective Cover - Parkerized
H&K Heckler & Koch
$19.95H&K A3 Parkerized Stock Protective Cover The perfect replacement part for all HK G3, HK33, and MP5 collapsible stocks issued with steel covers. Complete with locking spring clips welded in place.HKP-20649$19.95 -
On Sale
HK416 E1 Buttstock and Buffer Tube Combo - Commercial OTB
H&K Heckler & Koch
Now: $392.95Was: $469.95Heckler and Koch's E1 Buttstock and OTB Buffer Tube Combo - Commercial for HK416 Genuine HK416 E1 commercial buttstock with the new style marine environment "over the beach" buffer tube. Buffer tube has ball bearing rollers to tighten the buttstock...HKP-18361Now: $392.95Was: $469.95 -
HK91, G3, HK33, HK53, HK93 Stock and Stock Adapter - AR Style
PTR
$209.95PTR AR Brace/Stock Adapter w/ Magpul Stock - G3, 91, 93, 53, 33 AR15/M16 to HK 90 series stock adapter set with a Magpul MOE stock installed as well as the buffer tube and castle nut. Just use your existing back-plate and MIL-SPEC buffer assembly and you...HKP-15457$209.95 -
HK MP5K Ultra Carbine Stock and Adapter
HKP HK Parts / Magpul
$312.95HK MP5K Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5K pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...HKP-22198$312.95 -
HK416, MR556 Stabilizing Brace - SBA3 5 Position Adjustable
SB Tactical
$109.95SB Tactical SBA3 5 Position Adjustable Stabilizing Brace The SBA3™ is a minimalist, 5-position adjustable stabilizing brace designed for platforms that accept a mil-spec carbine receiver extension (not included). It features an integral...HKP-21927$109.95 -
HK Single Point Leather Sling - OD Green
HKP HK Parts
$49.95Single Point Leather Sling - OD Green Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...HKP-20163$49.95 -
B&T TP9, MP9, TP380 Stock Conversion Kit
B&T Brugger & Thomet
$147.95Stock Conversion Kit - TP9, MP9, TP380 Converts B&T's telescopic brace into a telescopic stock. Compatible with B&T part number BT-20522 for TP9, TP380. Compatible With: B&T TP9, MP9 B&T TP380HKP-19128$147.95 -
HK G3 Leather Sling - Well Used with No Loop
H&K Heckler & Koch
$39.80Original Surplus German HK Leather - Well Used with No Loop Pulled from German military G3 rifles. Last of the remaining units, get them before they are gone. Compatible With: HK91, G3 PTR91, CETMEHK93 HK33, HK53 HK94 MP5 HK clones Other custom...HKP-20583$39.80 -
Out Of Stock
HK G36 IDZ Convex Buttstock - Adjustable, Folding
H&K Heckler & Koch
$347.95HK Heckler and Koch Convex Folding Adjustable IDZ Buttstock for HK G36 Features: 3 position forward and back 3 cheek piece elevation positions. Folding capability while retaining the ability to fire with the buttstock folded. Super robust, compact...HKP-17703$347.95 -
HK416, MR556, HK417, MR762 Eyelet Sling Adapter - RAL8000
H&K Heckler & Koch
$165.99Heckler and Koch HK416, MR556, HK417, MR762 Eyelet Sling Adapter - RAL 8K New German HK Factory Eyelet Sling Adapter for Carrying Slings. Compatible With: HK416, MR556 HK417, MR762 HK G28HKP-18855$165.99 -
HK MP5, MP5K Folding Stock or Brace - HDA3
Haga Defense
$349.95HDA3 Stock and Brace for MP5K, SP5K The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...HKP-22355-M$349.95