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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  • Out Of Stock
    New - MM HK UMP 9mm Conversion Kit - 16 inch Barrel - HKP-02284 HK UMP Caliber Conversion to 9mm Kit - 16.5" Barrel - 30 Round Magazine

    HK UMP Caliber Conversion to 9mm Kit - 16.5" Barrel - 30 Round Magazine

    Michaels Machines

    $889.95
    HK UMP 9mm Conversion Kit - US-Made UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in, with the total swap...
    HKP-02284
    $889.95
    Out Of Stock
    Qty in Cart: 0
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    $889.95
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  • New - HKP HK 21 (7.62x51/.308) Feed Mechanism Latch Lever - HKP-00235 HK21 Feed Mechanism Latch Lever
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    HK21 Feed Mechanism Latch Lever

    Michaels Machines

    $69.95
    HKP HK21 Feed Mechanism Latch Lever - 7.62x51 / .308 Replacement feed mechanism latch lever for HK21 belt-fed platforms chambered in 7.62x51 and .308. Designed to interface with the feed assembly and support proper operation of the HK21 system...
    HKP-00235
    $69.95
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  • Out Of Stock
    New - HKP HK 91/G3 (7.62x51/.308) 20 Round Steel Magazine - Latest HK Production - HKP-00542 HK91, G3 20 Round Steel Magazine - Latest HK Production

    HK91, G3 20 Round Steel Magazine - Latest HK Production

    H&K Heckler & Koch

    $0.00
    HK 91, G3, PTR .308 20 Round All Steel Magazine - German HK HK .308 factory steel 20 round all steel magazine. Each magazine is the latest HK German manufactured. Compatible With: HK 91 HK G3 PTR-91, PTR PDW Vector 51, G3K, HK51, HK51K Century C308...
    HKP-00542
    $0.00
    Out Of Stock
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    New - H&K MP5 40/10 Magazine Follower - HKP-01635 HK MP5 Magazine Follower - .40 S&W, 10mm

    HK MP5 Magazine Follower - .40 S&W, 10mm

    H&K Heckler & Koch

    $19.95
    H&K Heckler and Koch Magazine Follower HK MP5 40,10   A perfect replacement part for all HK MP5 40,10 magazines.
    HKP-01635
    $19.95
    Out Of Stock
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    $19.95
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  • Out Of Stock
    Used - H&K 30 Round MP5 9mm Magazine-Straight - HKP-16263 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Straight

    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Straight

    H&K Heckler & Koch

    $0.00
    German H&K MP5 9mm 30 Round Straight Magazine Each original German HK manufactured magazine ranges from VG to like new condition. This is the first production MP5 style of magazine. Each is date coded with factory HK markings. No longer made or...
    HKP-16263
    $0.00
    Out Of Stock
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  • On Sale
    New - HKP HK VP9, VP40 Competition Magwell Extension - Orange - BLEMISHED - HKP-21079-OR-B HK VP9, VP40 Competition Magwell Extension - Orange - BLEMISHED
    Add to Cart

    HK VP9, VP40 Competition Magwell Extension - Orange - BLEMISHED

    HKP HK Parts

    Now: $69.95
    Was: $129.95
    HKP HK VP9, VP40 Competition Magwell Extension - Orange - BLEMISHED CONDITION MAY VARY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Our 2-piece, steel insert...
    HKP-21079-OR-B
    Now: $69.95
    Was: $129.95
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  • On Sale
    Used - H&K UMP (.45 ACP) 25 Round Magazine - German LEO Markings - LIKE NEW - HKP-17917-B HK UMP Magazine - 25 Round - .45 ACP - German LEO Markings - LIKE NEW
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    HK UMP Magazine - 25 Round - .45 ACP - German LEO Markings - LIKE NEW

    H&K Heckler & Koch

    Now: $172.34
    Was: $229.95
    HK Heckler and Koch .45 ACP 25 Round Magazine for HK UMP - German LEO Markings - LIKE NEW Like-new PD trade in HK German UMP .45 cal 25 Round Factory Magazines. These magazines will fit all UMP factory firearms as well as the USC's that have been...
    HKP-17917-B
    Now: $172.34
    Was: $229.95
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    Now: $172.34
    Was: $229.95
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  • On Sale
    HK MP5, MP5K Magazine - 30 Round - LEO Marked - TiN Coated - Sterling, VA - BLEMISHED HK MP5, MP5K Magazine - 30 Round - LEO Marked - TiN Coated - Sterling, VA - BLEMISHED
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    HK MP5, MP5K Magazine - 30 Round - LEO Marked - TiN Coated - Sterling, VA - BLEMISHED

    H&K Heckler & Koch

    Now: $117.95
    Was: $159.95
    HK MP5, MP5K Magazine - 30 Round - LEO Marked - TiN Coated - Sterling, VA - BLEMISHED POOR FINISH - OPEN PACKAGING COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL...
    HKP-21792-TiN-S-B
    Now: $117.95
    Was: $159.95
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    Now: $117.95
    Was: $159.95
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  • On Sale
    Used - H&K 10 Round HK 91, G3, PTR .308 Magazine - USED - BLEMISHED - HKP-19887-B HK91, G3, PTR .308 Magazine - 10 Round - BLEMISHED
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    HK91, G3, PTR .308 Magazine - 10 Round - BLEMISHED

    H&K Heckler & Koch

    Now: $39.95
    Was: $64.95
    H&K 10 Round HK 91, G3, PTR .308 Magazine - USED - BLEMISHED   INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Each HK magazine is...
    HKP-19887-B
    Now: $39.95
    Was: $64.95
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    Now: $39.95
    Was: $64.95
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  • New - H&K UMP (9mm) Magazine Spring - 30 Round - HKP-16563
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    HK UMP Magazine Spring - 9mm - 30 Round

    H&K Heckler & Koch

    $14.95
    H&K UMP (9mm) Magazine Spring - 30 Round Perfect for spares and to have on hand as these are a consumable part.
    HKP-16563
    $14.95
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    Qty in Cart: 0
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    $14.95
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  • New - H&K USC (.45 ACP) Magazine Follower - HKP-16346 HK USC Magazine Follower - .45 ACP
    Add to Cart

    HK USC Magazine Follower - .45 ACP

    H&K Heckler & Koch

    $12.95
    H&K USC (.45 ACP) Magazine Follower New HK German USC 10 Round magazine follower.
    HKP-16346
    $12.95
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    Qty in Cart: 0
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    $12.95
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  • HK CC9 Magazine Spring - 12 Round
    Add to Cart

    HK CC9 Magazine Spring - 12 Round

    H&K Heckler & Koch

    $9.95
    Heckler and Koch 12-Round Magazine Spring for HK CC9 Genuine 12-round HK CC9 steel magazine spring. Compatible With: HK CC9
    HKP-22509
    $9.95
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    Qty in Cart: 0
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    $9.95
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