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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HK USP, USP Compact Complete Mag Lockout Device
H&K Heckler & Koch
$19.95H&K HK USP/USPC Complete Mag Lockout Device Easily installs and replaces the existing lanyard to the newer style lock out upgrade for the magazine lockout. Used to comply with certain state's laws...HKP-16397$19.95 -
HK G36 Magazine Floorplate - 10 and 30 Round
H&K Heckler & Koch
$11.95H&K 10/30 Round HK G36 Magazine Floor Plate New factory German G36 30 round and 10 round magazine floor plate.HKP-16381$11.95 -
HK21 Feed Mechanism Latch Lever
Michaels Machines
$69.95HKP 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...HKP-00235$69.95 -
Out Of Stock
HK91, G3 20 Round Steel Magazine - Latest HK Production
H&K Heckler & Koch
$0.00HK 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:HKP-00542$0.00 -
On Sale
Raddlock 91/G3 (7.62x51/.308) Magazine Sled
Raddlock
Now: $9.07Was: $12.95Magazine Block for HK G3,91, PTR .308 Rifles. The Raddlock magazine block converts a mag-fed rifle to a single-shot rifle as dictated by certain restrictive states. Once installed, the rifle will...HKP-02448Now: $9.07Was: $12.95 -
HK91, G3, PTR Magazine - 5 Round - Steel
H&K Heckler & Koch
$174.95New HK German 5 Round Factory G3 and HK91 .308 Steel Magazine Factory German steel magazine. This is an original German 5 round magazine from HK, not a modified assembly/cut-down magazine. These...HKP-00220$174.95 -
Out Of Stock
HK MP5 Magazine Follower - .40 S&W, 10mm
H&K Heckler & Koch
$19.95H&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 -
On Sale
HK45C, USPC Magazine Extension - 20 Round - BLEMISHED
HKP HK Parts
Now: $20.46Was: $39.95HK45C & USPC .45 20 Round Magazine Extension Kit - BLEMISHED OLD VERSION COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART...HKP-17158-BNow: $20.46Was: $39.95 -
Out Of StockOn Sale
HK USP Magazine - Full Size - .40 S&W - 13 Round - USED
H&K Heckler & Koch
Now: $38.21Was: $59.95HK German USP 40 Full-Size Magazine - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Compatible With: USP .40 FulHKP-00309-BL-USEDNow: $38.21Was: $59.95 -
On Sale
HK MP5, SP5, MP5K, SP5K Magwell Tensioner Armorer Tool - 9mm
War Hammer Armaments
Now: $179.96Was: $199.95War Hammer Armaments MP5 Magwell Tensioner Armorer Tool The War Hammer Armaments magwell tensioner armorer tool provides a fast, simple solution for correcting loose magwell fitment on MP5 and...HKP-22990Now: $179.96Was: $199.95 -
On Sale
HK VP9, VP40 Competition Magwell Extension - Orange - BLEMISHED
HKP HK Parts
Now: $52.46Was: $129.95HKP 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...HKP-21079-OR-BNow: $52.46Was: $129.95 -
HK UMP Magazine Spring - 9mm - 30 Round
H&K Heckler & Koch
$14.95H&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