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
HK Mark 23 Magazine Housing - 10 Round
H&K Heckler & Koch
Now: $44.95Was: $49.9510 Round HK Mark 23 Magazine HousingHKP-16647Now: $44.95Was: $49.95 -
On Sale
HK USPC, P2000 Magazine Floorplate - .40 S&W - 10 Round - Flat
H&K Heckler & Koch
Now: $41.95Was: $45.95H&K 10 Round HK USPC .40 S&W Flat Floor Plate Magazine New German HK 10 round floor plate flat style for low profile. Compatible With: HK USP Compact 40 S&W HK USP Compact 357 SIG HK P2000 40 S&WHKP-01197Now: $41.95Was: $45.95 -
HK MP5, SP5, MP5K, SP5K Magazine Clamp - Tri-Lock - 9mm
HKP HK Parts
$39.95HKP HK MP5, SP5, MP5K, SP5K Tri-Lock Magazine Clamp 9mm Triple magazine clamp HK MP5 magazines. Secures three 9mm magazines together for faster reloads and segregating ammo types (FMJ/JHP/subsonic/supersonic). Compatible With: MP5, SP5 MP5K,...HKP-22799-M$39.95 -
On Sale
HK USP Magazine Extension - 9mm - +7 Round - Red - BLEMISHED
HKP HK Parts
Now: $47.95Was: $69.95HK USP Magazine Extension - 9mm - +7 Round - Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Easy to install. Simply add the mag extension to your...HKP-21841-RE-BNow: $47.95Was: $69.95 -
On Sale
HK CC9 Magazine Body - 9mm - 10 Round
H&K Heckler & Koch
Now: $4.95Was: $5.95Heckler and Koch 10-Round Magazine Body for HK CC9 OEM 10-round magazine body for the HK CC9, made in Germany by Heckler and Koch and ideal as a factory-spec replacement. Compatible With: CC9HKP-22152Now: $4.95Was: $5.95 -
HK USP, USP Tactical .45 ACP Lockout Device Set
H&K Heckler & Koch
$18.95Heckler and Koch HK USP45, USP45 Tactical Lockout Device Set Factory lockout device set designed for HK USP .45 ACP full-size pistols, including Tactical models. Intended for use in compatible lockout-equipped frames. Compatible With: USP45,...HKP-01503$18.95 -
On Sale
HK416, MR556 Magazine Locking Plate
H&K Heckler & Koch
Now: $8.95Was: $9.95HK German HK MR556 & HK 416 Magazine Locking PlateHKP-13484Now: $8.95Was: $9.95 -
Out Of Stock
HK USC Magazine Locking Plate Insert - .45 ACP
H&K Heckler & Koch
$8.95H&K USC (.45 ACP) Magazine Locking Plate InsertHKP-16384$8.95 -
On Sale
HK USC Magazine Floorplate - .45 ACP
H&K Heckler & Koch
Now: $7.95Was: $8.95H&K USC (.45 ACP) Magazine Floor PlateHKP-16380Now: $7.95Was: $8.95 -
On Sale
HK USPC Magazine Housing - 9mm - 10 Round - BLEMISHED
H&K Heckler & Koch
Now: $12.95Was: $19.95HK USPC Magazine Housing - 9mm - 10 Round - BLEMISHED ONLY 2 UNITS AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This is an...HKP-02500-BNow: $12.95Was: $19.95 -
On Sale
Glock 17 Magazine Extension Kit - 9mm - +6 Round - Blue - BLEMISHED
HKP HK Parts
Now: $18.95Was: $34.95HKP Glock 17 - +6 Round 9mm Magazine Extension Kit - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Designed to fit all of the Glock 17 models...HKP-18348-BU-BNow: $18.95Was: $34.95 -
On Sale
HK USP Compact Lockout Device - Complete
H&K Heckler & Koch
Now: $19.95Was: $24.95HK USP Compact Lockout Device - Complete Easily installs to lock out the magazine. Used to comply with certain state laws and as an added safety feature. This lockout device can be retrofitted to older-style USPC's that do not have the lockout device...HKP-99360Now: $19.95Was: $24.95