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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  • On Sale
    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED
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    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED

    H&K Heckler & Koch

    Now: $2.96
    Was: $5.95
    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED   VARYING CONDITION SHOWN - SOLD INDIVIDUALLY   USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN.  Features: Precision-machined elbow spring...
    HKP-03330-USED
    Now: $2.96
    Was: $5.95
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    Was: $5.95
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  • Out Of Stock
    On Sale
    HK33, HK53, HK93, HK91, G3, MP5 Rail Mount - Picatinny - Front Sight Tower - GUNSMITH SPECIAL HK33, HK53, HK93, HK91, G3, MP5 Rail Mount - Picatinny - Front Sight Tower - GUNSMITH SPECIAL

    HK33, HK53, HK93, HK91, G3, MP5 Rail Mount - Picatinny - Front Sight Tower - GUNSMITH SPECIAL

    HKP HK Parts

    Now: $23.95
    Was: $39.95
    HKP HK MP5/91/G3/93/33/53 Picatinny Rail Mount For Front Sight Tower - BLEMISHED DAMAGED BOLT HOLE Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith. The Condition will vary from...
    HKP-16672-B
    Now: $23.95
    Was: $39.95
    Out Of Stock
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  • On Sale
    New - JMAC HK G36/HK33 Muzzle Device - Threaded 15x1 - HKP-21258 HK G36, HK33 Muzzle Device- RRD-360 - Threaded 15x1
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    HK G36, HK33 Muzzle Device- RRD-360 - Threaded 15x1

    JMAC Customs

    Now: $77.95
    Was: $99.95
    JMAC 5.56 / .223 Muzzle Device Threaded 15x1 for HK G36 and HK33 The RRD-360 Muzzle Device from JMAC Customs is unlike others on the market today. This device vents gasses 360 degrees away from your muzzle requiring less effort from the...
    HKP-21258
    Now: $77.95
    Was: $99.95
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    Now: $77.95
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  • Out Of Stock
    New - HKP HK UMP Stock Block - B Push Pin - HKP-21249 HK UMP Stock Block B Push Pin

    HK UMP Stock Block B Push Pin

    HKP HK Parts

    $34.95
    Stock Block B Sling Pin With Loop washer & Quick Pull Pin for UMP/USC (.40 S&W/ .45 ACP/9mm)   
    HKP-21249
    $34.95
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  • On Sale
    New - TPM 6.5mm Titanium Full Port Muzzle Brake - Threaded 5/8x24 - HKP-20768 Full Port Muzzle Brake - 6.5mm - Threaded 5/8x24" - Titanium
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    Full Port Muzzle Brake - 6.5mm - Threaded 5/8x24" - Titanium

    Tactical Precision MFG

    Now: $42.95
    Was: $84.99
    TPM 6.5mm Titanium Full Port Muzzle Brake - Threaded 5/8x24 This lightweight titanium muzzle brake is designed by a master gunsmith and is one of the best on the market. The spiral port outlets along with the parabolic internal taper significantly...
    HKP-20768
    Now: $42.95
    Was: $84.99
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    Was: $84.99
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  • Used - HK G3 .22 20 Round Conversion Magazine - USED - HKP-20750 HK G3 .22 20 Round Conversion Magazine - USED
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    HK G3 .22 20 Round Conversion Magazine - USED

    $199.95
    HK G3 .22 20 Round Conversion Magazine - USED HK .22 caliber conversion kit 20-round magazine for The G3/91. Ideal for those that have the caliber conversion kit and wants to stack up on spare magazines. Condition is used to like new in the gray paint...
    HKP-20750
    $199.95
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    Qty in Cart: 0
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    $199.95
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  • Out Of Stock
    New - HKP HK UMP 2 Position Lower Grip Frame - Black - HKP-19382 HK UMP 2 Position Lower Grip Frame

    HK UMP 2 Position Lower Grip Frame

    HKP HK Parts

    $179.95
    UMP - 2 Position Lower Grip Frame New UMP Lower. 2 position settings (S,F). Perfect for all your own internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Each lower fits & works with the 45, 40 & 9mm calibers using...
    HKP-19382
    $179.95
    Out Of Stock
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  • Out Of Stock
    New - HK G36C Forearm w/ Tri Rail Set Included - HKP-00618 HK G36C Handguard with Tri Rail Set

    HK G36C Handguard with Tri Rail Set

    H&K Heckler & Koch

    $199.95
    HK Heckler and Koch Tri-Rail Handguard Forearm for HK G36C New HK German Factory G36C Forearm with both left and right side rails, bottom rail, and hand stop included. This new style forearm also comes with the heat shield installed. Forearm is made in...
    HKP-00618
    $199.95
    Out Of Stock
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  • New - B&T TP9 Telescopic Brace - Black - HKP-18945 B&T TP9 Telescopic Brace
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    B&T TP9 Telescopic Brace

    B&T Brugger & Thomet

    $507.95
    B&T TP9 Telescopic Brace B&T Telescopic Arm Brace Adapter for a B&T TP9 pistol. Tailhook (BT-20422) is sold separately, not included. Compatible With: B&T TP9 ***Stabilizing braces sold by HK Parts are designed and intended for...
    HKP-18945
    $507.95
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    $507.95
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  • New - Lee Sporting LS5 HK MP5 Complete Trigger Group Push Pin - HKP-20467 HK MP5 LS5 Trigger Group, Complete - Push Pin
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    HK MP5 LS5 Trigger Group, Complete - Push Pin

    Lee Sporting

    $549.95
    Lee Sporting LS5 Complete Trigger Group - MP5 Push Pin The LS5 trigger group from Lee Sporting is a definitive ergonomic upgrade over the OEM grip, boasting a weight reduction of 4.3oz compared to the original. This billet aluminum trigger group is...
    HKP-20467
    $549.95
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    $549.95
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  • New - HKP 9mm SEF Semi Trigger Pack - ENHANCED 5-6 LBS Trigger Pull - HKP-20312 HK MP5, MP5K, SP89, HK94 Trigger Pack - SEF Semi - 9mm - Semi-Auto - Enhanced 5 to 6 lb Trigger Pull
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    HK MP5, MP5K, SP89, HK94 Trigger Pack - SEF Semi - 9mm - Semi-Auto - Enhanced 5 to 6 lb Trigger Pull

    HKP HK Parts

    $439.95
    HKP 9mm SEF Semi Trigger Pack - ENHANCED 5-6 LBS Trigger Pull These trigger packs start as a F/A pack and gets professionally converted to the BATFE specs so you can rest assured the trigger pack is done correctly and to spec. These refinished trigger...
    HKP-20312
    $439.95
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    Qty in Cart: 0
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    $439.95
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  • New - HK MP5K Side Reinforcement Tabs - HKP-20168 HK MP5K Side Reinforcement Tabs
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    HK MP5K Side Reinforcement Tabs

    USA

    $14.95
    HK MP5K Side Reinforcement Tabs
    HKP-20168
    $14.95
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    Qty in Cart: 0
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    $14.95
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