Stocks / Braces / Slings

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 UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED HK UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED

    H&K Heckler & Koch

    Now: $48.95
    Was: $65.95
    HK UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.
    HKP-00613-USED
    Now: $48.95
    Was: $65.95
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    Now: $48.95
    Was: $65.95
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  • On Sale
    HK G3 Standard Stock Buttpad - Green - Used - BLEMISHED H&K Heckler & Koch HKP-21865-ODG-B HK G3 Standard Stock Buttpad - Green - Used - BLEMISHED H&K Heckler & Koch HKP-21865-ODG-B
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    HK G3 Butt Plate with Catch Spring - Standard Stock - Green - Used - BLEMISHED

    H&K Heckler & Koch

    Now: $0.97
    Was: $2.95
    HK G3 Standard Stock Buttpad - Green - Used - BLEMISHED SOLD INDIVIDUALLY - CRACKED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This German-made buttpad is an excellent replacement for your...
    HKP-21865-ODG-B
    Now: $0.97
    Was: $2.95
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    Qty in Cart: 0
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    Now: $0.97
    Was: $2.95
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  • Out Of Stock
    On Sale
    H&K HK MR556/416 Mil-Spec German E1 Rear Stock - Black - USED H&K Heckler & Koch HKP-00052-USED H&K HK MR556/416 Mil-Spec German E1 Rear Stock - Black - USED H&K Heckler & Koch HKP-00052-USED

    HK416, MR556 Mil-Spec German E1 Stock - Black - USED

    H&K Heckler & Koch

    Now: $167.95
    Was: $222.95
    H&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...
    HKP-00052-USED
    Now: $167.95
    Was: $222.95
    Out Of Stock
    Qty in Cart: 0
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    Now: $167.95
    Was: $222.95
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  • Out Of Stock
    New - B&T GHM9/GHM45/KH9 Stock Conversion Kit - HKP-22229 B&T GHM9 Stock Conversion Kit B&T Brugger & Thomet HKP-22229

    B&T GHM9, GHM45, KH9 Stock Conversion Kit

    B&T Brugger & Thomet

    $165.00
    B&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...
    HKP-22229
    $165.00
    Out Of Stock
    Qty in Cart: 0
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    $165.00
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  • On Sale
    New - H&K HK MR762/417 Castle Receiver Extension Nut For Buffer Tube - Black - BLEMISHED - HKP-16768-B HK417, MR762 Extension Nut - Buffer Tube - Castle Receiver - BLEMISHED
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    HK417, MR762 Extension Nut - Buffer Tube - Castle Receiver - BLEMISHED

    H&K Heckler & Koch

    Now: $20.95
    Was: $39.95
    H&K HK MR762/417 Castle Receiver Extension Nut For Buffer Tube - Black - BLEMISHED ONLY 2 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...
    HKP-16768-B
    Now: $20.95
    Was: $39.95
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    Qty in Cart: 0
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    Now: $20.95
    Was: $39.95
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  • New - H&K HK MR556/416 Enhanced Buffer Tube - Tan - HKP-22086 HK416, MR556 Enhanced Buffer Tube - Tan
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    HK416, MR556 Enhanced Buffer Tube - Tan

    H&K Heckler & Koch

    $192.95
    Tan HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial Genuine HK German-manufactured 416 & MR556 latest generation, marine environment & and over-the-beach buffer tube. Each commercial buffer tube features built-in...
    HKP-22086
    $192.95
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    Qty in Cart: 0
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    $192.95
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  • New - H&K A3 Stock Release Lever Rebuild Kit - HKP-21851
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    HK A3 Stock Release Lever Rebuild Kit

    H&K Heckler & Koch

    $14.95
    H&K A3 Stock Release Lever Rebuild Kit This A3 collapsible stock rebuild kit is designed for the release lever on MP5, SP5, 93/53/33, and G3/91 collapsible stocks.  With A3 stocks becoming more expensive it's a great idea to keep this kit on...
    HKP-21851
    $14.95
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    Qty in Cart: 0
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    $14.95
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  • New - HKP HK MP5K .40/10 Picatinny Rail Brace/Stock Adapter - HKP-21833 HK MP5K Stock or Brace Adapter - 10mm / .40 S&W - Picatinny Rail
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    HK MP5K Stock or Brace Adapter - 10mm / .40 S&W - Picatinny Rail

    HKP HK Parts

    $129.95
    HKP 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...
    HKP-21833
    $129.95
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    Qty in Cart: 0
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    $129.95
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  • New - JMAC Universal Picatinny 8" Triangle Stock with 1913 Folding Mech - HKP-21245 Picatinny 8" Triangle Stock with 1913 Folding Mech
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    Picatinny 8" Triangle Stock with 1913 Folding Mech

    JMAC Customs

    $261.00
    JMAC Triangle Stock 8" Stock with 1913 Folding Mech Features: 2x Integrated QD Sling Socket 8" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers 7075 T6 Aluminum Hard-Coat Anodized **Not compatible w/LevTech Manufacturing panels...
    HKP-21245
    $261.00
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    Qty in Cart: 0
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    $261.00
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  • Used - H&K HK SL8 Adjustable Buttstock Piece - Used - Gray - HKP-20051 HK SL8 Adjustable Buttstock Piece - Used - Gray
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    HK SL8 Adjustable Buttstock Piece - Used - Gray

    H&K Heckler & Koch

    $19.95
    HK SL8 Adjustable Buttstock Piece Gray in Color - USED
    HKP-20051
    $19.95
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    Qty in Cart: 0
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    $19.95
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  • New - H&K HK MR556/MR762 Fixed Tactical Sling Adapter - HKP-17553 HK MR556, MR762 Fixed Tactical Sling Adapter
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    HK MR556, MR762 Fixed Tactical Sling Adapter

    H&K Heckler & Koch

    $86.95
    HK MR556 & MR762 Factory Sling Adapter - Fixed Factory HK German design & the finest design available & made to last. New HK manufactured part to allow the factory HK416, MR762 slings  to fit & work on the MR556, MR762 as this adds...
    HKP-17553
    $86.95
    Add to Cart
    Qty in Cart: 0
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    $86.95
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  • New - H&K HK 416/417 Buttstock Release Lever - HKP-18948 HK416, HK417 Buttstock Release Lever
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    HK416, HK417 Buttstock Release Lever

    H&K Heckler & Koch

    $21.95
    Heckler and Koch Buttstock Release Lever HK416 and HK417 The buttstock release lever locks the telescopic buttstock to the tubular rear buttstock extension. The buttstock is adjustable in length in 6 positions
    HKP-18948
    $21.95
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    Qty in Cart: 0
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    $21.95
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