HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • Out Of Stock
    New - H&K HK11 Recoil Spring - HKP-21858

    HK11 Recoil Spring

    H&K Heckler & Koch

    $18.95
    H&K HK11 Recoil Spring This German-made HK11 recoil spring is longer than the standard G3 springs but has the same pattern. As a project spring, this part can be cut down for use on G3 and HK33-type recoil rods. Many U.S.-built HK11's use G3 springs...
    HKP-21858
    $18.95
    Out Of Stock
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    $18.95
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  • New - Strike Industries HK MP5 .22LR Dual Folding Stock w/ Adapter - HKP-21769-M HK MP5 Dual Folding Stock with Adapter - .22LR
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    HK MP5 Dual Folding Stock with Adapter - .22LR

    HKP HK Parts / Strike Industries

    $319.95
    Strike Industries HK MP5 .22LR Dual Folding Stock with Adapter The Strike Industries Dual Folding Stock paired with the HKP MP5 .22LR picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...
    HKP-21769-M
    $319.95
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    $319.95
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  • New - Nefarious Arms HK MR556/416 11" A5 Barrel - HKP-21839 HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5
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    HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious Arms HK MR556/HK416 11" A5 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...
    HKP-21839
    $594.95
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    $594.95
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  • Out Of Stock
    New - B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series - HKP-21771 Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    B&T Brugger & Thomet

    $150.00
    B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series The B&T QD skeleton mount for Aimpoint T-Series offers a 39mm elevated profile for improved sight alignment, ideal for night vision setups requiring clearance over forward-mounted IR...
    HKP-21771
    $150.00
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    $150.00
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  • New - H&K MP5K 9mm Complete Bolt Group - Suppressed - HKP-21613 New - H&K MP5K 9mm Complete Bolt Group - Suppressed - HKP-21613
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    HK MP5K Bolt Group - Complete - 9mm - Suppressed

    H&K Heckler & Koch

    $2,259.95
    Heckler and Koch MP5K 9mm Complete Bolt Group - Suppressed Complete factory German MP5K full-auto bolt group assembly configured with an 80-degree #28 German locking piece for suppressed use. This drop-in bolt carrier group is built with original German...
    HKP-21613
    $2,259.95
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    $2,259.95
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  • HK G3K, HK33 Flash Hider - 4 Prong Enclosed
HK G3K, HK33 Flash Hider - 4 Prong Enclosed
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    HK G3K, HK33 Flash Hider - 4 Prong Enclosed

    RCM

    $187.95
    RCM HK G3K & HK33 Flash Hider - 4 Prong - Enclosed End The RCM G3K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in the US from ordnance grade steel and counts as 1...
    HKP-21598
    $187.95
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  • On Sale
    HK MP5, SP5 Trigger Housing - AR - 9mm - BLEMISHED
HK MP5, SP5 Trigger Housing - AR - 9mm - BLEMISHED
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    HK MP5, SP5 Trigger Housing - AR - 9mm - BLEMISHED

    Magpul

    Now: $204.95
    Was: $299.95
    Magpul HK MP5/SP5 9mm AR Trigger Housing - BLEMISHED ONLY 1 UNIT 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. With our new MP5 AR style...
    HKP-20727-BL-B
    Now: $204.95
    Was: $299.95
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    Now: $204.95
    Was: $299.95
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  • Out Of Stock
    New - B&T HK 417/G36K Flash Hider - HKP-21520 HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    B&T Brugger & Thomet

    $144.99
    B&T Flash Hider with Interface for Rotex III/V/VA Swiss-made flash hider compatible with NATO A2 suppressor mounting HUB's. Specifications: Made in Switzerland Threaded M15x1 RH NATO spec Does not include face shims Compatible With: HK416,...
    HKP-21520
    $144.99
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    $144.99
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  • New - B&T HK G36/G36K (5.56/.223) Mounting Rail - HKP-21461 HK G36, G36K Optic Mount - Dual Rail, Emergency Sight - NATO Accessory Rail
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    HK G36, G36K Optic Mount - Dual Rail, Emergency Sight - NATO Accessory Rail

    B&T Brugger & Thomet

    $397.95
    B&T HK G36/G36K (5.56/.223) Mounting Rail B&T NAR (Picatinny compatible) mounting rail for HK G36/G36K with emergency sight, dual rail. Compatible With: HK G36 HK G36K  
    HKP-21461
    $397.95
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    $397.95
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  • New - Magpul HK MP5 AR Match Trigger Group - HKP-20666 HK MP5 Trigger Group - AR Match
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    HK MP5 Trigger Group - AR Match

    Magpul

    $649.95
    Magpul AR Match Trigger Group for HK MP5 Our new and improved HK-AR Navy ambidextrous lower housing is now paired with our match trigger pack and a Magpul MOE grip to make this complete MP5-AR style match trigger group. This trigger group is a drop-in...
    HKP-20666
    $649.95
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    $649.95
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  • New - Aimpoint Absolute Co-Witness T1 Mount - HKP-19334 Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness
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    Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness

    Aimpoint

    $14.95
    Aimpoint - T1 Mount Absolute Co-Witness Features a machined recoil lug for consistent, repeatable mounting.  Features:  6061 T6 aluminum Black anodized Machined recoil lug Compatible With: Aimpoint T1 / H1 Series optics Micro T-1 MIL-STD...
    HKP-19334
    $14.95
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    $14.95
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  • Used - H&K HK SL8-1 Locking Lever Elbow Spring - HKP-16398
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    HK SL8-1 Locking Lever Spring - Elbow

    H&K Heckler & Koch

    $9.95
    HK SL8-1 Locking Lever Elbow Spring
    HKP-16398
    $9.95
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    $9.95
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