Magazines / Extensions / Brass Catchers

Magazines / Extensions / Brass Catchers

Explore our extensive selection of HK magazines and extensions designed for enhanced capacity and performance across a range of HK models including the VP9, USP, MP5, and more. From rugged steel magazines to advanced polymer extensions, our inventory caters to both tactical and recreational needs, ensuring reliable feeding and durability. Enhance your HK firearm with precision-engineered magazine upgrades, available now for various calibers and applications.

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  • New - H&K 30 Round HK MP5/MP5K, SP5K/SP5K 9mm Magazine - RAL 8K - HKP-19354 HK MP5, MP5K, SP5K, SP5K Magazine - 30 Round - 9mm - RAL8000
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    HK MP5, MP5K, SP5K, SP5K Magazine - 30 Round - 9mm - RAL8000

    H&K Heckler & Koch

    $84.95
    New OEM Factory German - H&K MP5, SP5, SP5K, MP5K 9mm - 30 Round Curved Magazine  - RAL 8K Factory Heckler & Koch 9mm, 30-round magazine finished in RAL8000.  These magazines are painted by the factory in Germany. Compatible With: HK...
    $84.95
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  • New - HKP MP5 & MP5K 9MM Magazine Follower - RED - HKP-18302 HK MP5, MP5K Magazine Follower - 9mm - RED
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    HK MP5, MP5K Magazine Follower - 9mm - RED

    HKP HK Parts

    $8.95
    HKP MP5 & MP5K 9MM Magazine Follower - RED Teflon infused glass filled polymer red colored follower that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the follower to a red follower. A great training or...
    $8.95
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  • New - Magpul 50 Round HK MP5, MP5K PMAG D-50 Drum - HKP-19536
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    HK MP5, MP5K PMAG D50 Drum - 50 Round

    Magpul

    $124.95
    Magpul - PMAG D-50 - MP5, SP5, Mp5K, SP5K Lightweight but incredibly strong, our PMAG D-50 MP is a highly reliable, 9x19mm Parabellum, 50-round drum magazine for HK94/MP5 large-format pistols and pistol caliber carbines. The PMAG D-50 MP boasts many of...
    $124.95
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  • New - HKP +4 HK 45C, USPC .45 ACP Magazine Extension - HKP-18654-M HKP +4 HK 45C, USPC .45 ACP Magazine Extension
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    HKP +4 HK 45C, USPC .45 ACP Magazine Extension

    HKP HK Parts

    $49.95 - $54.95
    HKP +4 HK 45C, USPC .45 ACP Magazine Extension HK Parts magazine extension +4 adds 4 additional rounds to the HK45C, 8 round magazine. Each unit can then be fully assembled into a 12 round HK45C magazine. Ideal for competitive shooters, concealed carry,...
    $49.95 - $54.95
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  • New - HKP HK UMP .45 & UMP .40 Dual Magazine Clamp - HKP-19539-M HK UMP .45 & UMP .40 Clamp - Dual Magazine
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    HK UMP .45 & UMP .40 Clamp - Dual Magazine

    $49.95
    UMP .45/.40 Dual Magazine Clamp The UMP mag clamp fits all .45 and .40 UMP magazines. Holds two magazines together for ease of use and easy access to 2 magazines. Billet machined and hard coat anodized.   Features: Made in the USA Dual-Magazine...
    $49.95
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  • New - H&K UMP (.45 ACP) 25 Round Magazine - HKP-00605 HK UMP (.45 ACP) 25 Round Magazine
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    HK UMP (.45 ACP) 25 Round Magazine

    H&K Heckler & Koch

    $145.95
    New HK German Non-LE/Mil Marked UMP .45 ACP 25 Round Magazine The UMP .45 magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP magazines. Compatible With: HK UMP .45 HK USC to UMP . 45 conversions HK...
    $145.95
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  • On Sale
    New - AC-Unity 30-Round Glock 17, 19 9mm Window Magazine - Black - HKP-20157 Glock 17, 19 Window Magazine - 9mm - 30-Round
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    Glock 17, 19 Window Magazine - 9mm - 30-Round

    AC-Unity

    Now: $10.46
    Was: $19.95
    AC-Unity 30-Round Glock 17, 19 9mm Window Magazine    The AC-Unity 30 round 9mm window magazine for Glock models 17, 18, 19, 19X, 26, 34, 45. Will work in anything designed to accept a Glock 17 9mm double-stack magazine.   Originally...
    Now: $10.46
    Was: $19.95
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    Now: $10.46
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  • New - HKP HK UMP (9mm) 30 Round Magazine - HKP-17701 HK UMP 9mm 30 Round Magazine
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    HK UMP 9mm 30 Round Magazine

    HKP HK Parts

    $49.95
    UMP 9mm 30 Round Factory Magazine - USA UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30 round magazine capacity. Each magazine counts as 3 U.S. Made compliant parts as an added bonus! This is the finest...
    $49.95
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  • Used - H&K 40 Round HK 93, 33, 53 5.56x45mm/.223/300 Magazine - Used - HKP-19761 HK33, HK53, HK93 Magazine - 40 Round - Used
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    HK33, HK53, HK93 Magazine - 40 Round - Used

    H&K Heckler & Koch

    $80.00
    HK33, HK53, HK93 Magazine - 40 Round - Used - Genuine German HK HK Factory German 40 round surplus magazine. This factory magazine is long since out of production and is made from aluminum, steel and polymer. Used condition. A rare find and only...
    $80.00
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  • New - H&K UMP (.45 ACP) 25 Round Magazine Spring - HKP-01548
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    HK UMP Magazine Spring - .45 ACP - 25 Round

    H&K Heckler & Koch

    $9.95
    H&K UMP (.45 ACP) 25-Round Magazine Spring Perfect for spares and to have on hand as these are a consumable item that needs to be replaced from time to time. A must-have item if you own a USC/UMP conversion or UMP.
    $9.95
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  • New - HKP HK UMP 45, SMG 45 Magazine Loader - HKP-19662 HK UMP 45, SMG 45 Magazine Loader
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    HK UMP 45, SMG 45 Magazine Loader

    HKP HK Parts

    $39.95
    HKP HK UMP 45, SMG 45 Magazine Loader The enhanced loader is the finest loader available for UMP 45 magazines. Speed up your load time and save your thumb in the process. Made in the USA. Compatible With: H&K UMP & USC 45 magazines LWRC SMG 45...
    $39.95
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  • New - H&K MP5/MP5K/SP5K 10 Round Magazine - HKP-17872 H&K MP5/MP5K/SP5K 10 Round Magazine H&K Heckler & Koch HKP-17872
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    HK MP5, HK94, SP89, SP5K Magazine - 9mm - 10 Round

    H&K Heckler & Koch

    $89.95
    H&K MP5/MP5K/SP5K 10 Round Magazine: Heckler & Koch factory fresh magazine from this current year's production. Mags hold 10 rounds only so this is ideal for restricted states or for those that want the mag to have a low profile. Compatible With:...
    $89.95
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