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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  • On Sale
    New - H&K HK 17 Round HK VP9 Magazine Locking Plate - HKP-19322 HK VP9 Magazine Locking Plate - 17 Round
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    HK VP9 Magazine Locking Plate - 17 Round

    H&K Heckler & Koch

    Now: $8.05
    Was: $8.95
    Magazine Locking Plate for 17 Round Magazine - HK VP9, P30 New HK German factory part. This is the locking plate for the bottom of the magazine spring on the newer VP9/P30 17 Round magazine.  
    Now: $8.05
    Was: $8.95
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    Now: $8.05
    Was: $8.95
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  • On Sale
    New - H&K/HKP 22 Round HK USP45/Mark 23 .45 Complete Magazine - HKP-21372-M HK/HKP 22 Round HK USP45/Mark 23 .45 Complete Magazine
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    HK/HKP 22 Round HK USP45/Mark 23 .45 Complete Magazine

    HKP HK Parts / Heckler & Koch

    Now: $134.95
    Was: $149.95
    Mark 23/USP .45 - 22 Round Magazine Complete  HK Parts takes an existing 12 round mag the +10 mag extension and assembles them into a working 22 round magazine. This offering is a valuable option for those that need a backup ultra capacity magazine...
    Now: $134.95
    Was: $149.95
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    Now: $134.95
    Was: $149.95
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  • On Sale
    New - HKP 17 Round HK USP .45 ACP/Mark 23 Enhanced Magazine - HKP-21459-M HKP 17 Round HK USP .45 ACP/Mark 23 Enhanced Magazine
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    HKP 17 Round HK USP .45 ACP/Mark 23 Enhanced Magazine

    HKP HK Parts

    Now: $91.16
    Was: $113.95
    HKP 17 Round HK USP .45 ACP/Mark 23 Enhanced Magazine - Black Our 17 round magazine starts life as a factory HK 12 round magazine then gets a capacity bump with our +5 mag extension. Compatible With: HK USP .45 HK Mark 23
    Now: $91.16
    Was: $113.95
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    Now: $91.16
    Was: $113.95
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  • On Sale
    New - 18 Round HK VP40/Tactical, HK P30/L/S .40 Cal Magazine - Black - HKP-18187 HK VP40, VP40T, P30, P30L, P30S Magazine - .40 ACP - 18 Round
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    HK VP40, VP40T, P30, P30L, P30S Magazine - .40 ACP - 18 Round

    HKP HK Parts

    Now: $63.96
    Was: $79.95
    18 Round HK VP40/Tactical, HK P30/L/S .40 Cal Magazine Each mag comes fully assembled and ready for use. HK Parts take an existing 13 round mag the +5 mag extension and assembles them into a working 18 round mag. Each unit comes as a completely assembled...
    Now: $63.96
    Was: $79.95
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  • On Sale
    New - HKP CC9 15 Round 9mm Complete Magazine - HKP-22038-M HK CC9 Complete Magazine - 15 Round - 9mm
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    HK CC9 Complete Magazine - 15 Round - 9mm

    HKP HK Parts

    Now: $63.96
    Was: $79.95
    HKP HK Parts - HK CC9 Complete Magazine - 15 Round - 9mm This fully assembled 15-round magazine for the CC9 combines a factory German 12-round magazine with the HK Parts +3 magazine extension. Compatible With: HK CC9
    Now: $63.96
    Was: $79.95
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    Was: $79.95
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  • On Sale
    New - H&K HK VP9/VP9SK, HK VP40 Clamping Sleeve Insert, Ejector Housing - HKP-16805
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    HK VP9, VP9SK, VP40 Clamping Sleeve Insert, Ejector Housing

    H&K Heckler & Koch

    Now: $1.75
    Was: $1.95
    Clamping Sleeve For Insert, Ejector Block Housing For HK VP9, VP40 This is the factory correct roll pin for holding the ejector block housing in the frame. New HK German manufacture. Compatible With: HK VP9 HK VP9SK HK VP40
    Now: $1.75
    Was: $1.95
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    Now: $1.75
    Was: $1.95
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  • On Sale
    New - Glock 19 +5 Magazine Extension Kit - HKP-19224-M Glock 19 +5 Magazine Extension Kit
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    Glock 19 +5 Magazine Extension Kit

    Now: $14.96
    Was: $34.95
    Glock 19 +5 Magazine Extension Kit   Designed to fit all Glock 19 models from Gen 1-5 Models. Each unit is fully machined from a solid billet of aircraft-grade aluminum that is fully hard coat anodized and set up for a lifetime of use. The unique...
    Now: $14.96
    Was: $34.95
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    Now: $14.96
    Was: $34.95
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  • On Sale
    New - HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set - HKP-21573-M HK MP5, MP5K Magazine Follower - Locking Plate Set - 9mm
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    HK MP5, MP5K Magazine Follower - Locking Plate Set - 9mm

    HKP HK Parts

    Now: $10.36
    Was: $12.95
    HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set  A drop in item that allows you to swap your follower & locking plate to green or red. Best for a quick empty mag identifier. A great training or range aid at a great price. Made...
    Now: $10.36
    Was: $12.95
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    Now: $10.36
    Was: $12.95
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  • On Sale
    Used - H&K 40 Round HK 93/33/53 5.56x45mm/.223/300 Magazine - Black - HKP-19797 HK33, HK53, HK93 Magazine - 40 Round 5.56x45mm / .223 / 300
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    HK33, HK53, HK93 Magazine - 40 Round 5.56x45mm / .223 / 300

    H&K Heckler & Koch

    Now: $107.95
    Was: $119.95
    HK93, HK33, HK53 - 40 Round Magazine - Genuine German HK - Professionally Refinished HK Factory German 40 round surplus magazine that has been professionally disassembled, inspected, bead blasted, cerakoted and cured to look as close to new as possible...
    Now: $107.95
    Was: $119.95
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    Now: $107.95
    Was: $119.95
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  • New - H&K 8 Round HK P7 PSP/P7M8 9mm Magazine Spring - HKP-01357
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    HK P7 PSP, P7M8 Magazine Spring - 9mm - 8 Round

    H&K Heckler & Koch

    $8.95
    8 Round HK P7 PSP & P7M8 9mm Magazine Spring Compatible With: P7 PSP P7M8
    $8.95
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    $8.95
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  • On Sale
    New - Magpul 9mm Subgun Mag Assist - 3 Pack - HKP-17310 Subgun Magazine Assist - 9mm - 3 Pack
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    Subgun Magazine Assist - 9mm - 3 Pack

    Magpul

    Now: $8.96
    Was: $9.95
    ORIGINAL MAGPUL® 9MM SUBGUN - 3 PACK When installed on the base of a submachine-gun magazine, the original Magpul provides improved speed and control during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed rough...
    Now: $8.96
    Was: $9.95
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    Was: $9.95
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  • On Sale
    New - HKP HK USP/T 9mm +5 Magazine Extension - HKP-21109-M HK USP/T 9mm +5 Magazine Extension
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    HK USP/T 9mm +5 Magazine Extension

    HKP HK Parts

    Now: $39.96
    Was: $49.95
    HKP HK USP/T 9mm +5 Magazine Extension This part is made in the USA out of aircraft grade hard coat anodized aluminum & steel hardware. Ultra-low profile & rock solid. With the addition of the +5 mag extension, the round count in the magazine...
    Now: $39.96
    Was: $49.95
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    Was: $49.95
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