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 P2000 Magazine Extension Kit - +7
HKP HK Parts
$64.99HKP HK P2000 +7 Magazine Extension Kit This listing is for the magazine extension ONLY. This is not a complete magazine. The referenced magazine capacity is the total capacity once the extension...HKP-21527-M$64.99 -
HK Mark 23 Magazine Housing - 10 Round
H&K Heckler & Koch
$49.9510 Round HK Mark 23 Magazine HousingHKP-16647$49.95 -
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 -
HK416, MR556 Magazine Locking Plate
H&K Heckler & Koch
$9.95HK German HK MR556 & HK 416 Magazine Locking PlateHKP-13484$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 -
HK23E Ammunition Belt Box - 5.56 / .223 - US
Michaels Machines
$599.95HK23E & MM23E Belt Box Brand new HK23E, MM23E US made feed box. The German units have long since been out of production. These are exact copies of the German units. Made in the USA. Compatible With: MM23E HK23EHKP-17579$599.95 -
On Sale
HK UMP Magazine Body - .45 ACP - 25 Round - LEO Marked - USED
H&K Heckler & Koch
Now: $73.95Was: $149.95HK UMP Magazine Body - .45 ACP - 25 Round - LEO Marked - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Used PD trade-in factory 25 round magazine body with HK...HKP-99426Now: $73.95Was: $149.95 -
On Sale
HK91, G3, PTR Magazine - 5 Round - Alloy - USED
HKP HK Parts
Now: $23.95Was: $37.95HK91, G3, PTR Magazine - 5 Round - Alloy - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Compatible With: HK91, G3 PSG-1, MSG-90 PTR-91 Vector 51 Century HK 308...HKP-22418-USEDNow: $23.95Was: $37.95 -
On Sale
UZI Magazine Block Plug - 9mm - 32 to 10 Round Conversion - BLEMISHED
HKP HK Parts
Now: $3.95Was: $6.95UZI Magazine Block Plug - 9mm - 32 to 10 Round Conversion - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. UZI mag block plug. This is designed to...HKP-18684-BNow: $3.95Was: $6.95 -
On Sale
HK P2000 Magazine Extension Kit - +7 - Red - BLEMISHED
HKP HK Parts
Now: $44.95Was: $64.99HK P2000 Magazine Extension Kit - +7 - Red - BLEMISHED ONLY 1 UNIT 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 listing is for...HKP-21527-RED-BNow: $44.95Was: $64.99 -
HK21 Cylinder Head Screw - Belt Inlet
H&K Heckler & Koch
$5.95HK21 Cylinder Head Screw - Belt Inlet Replacement cylinder head screw for the HK21 belt inlet assembly, manufactured to original specifications. Ensures proper fit, secure retention, and reliable feeding operation. Compatible With: HK21 THIS CLOSEOUT...HKP-99412$5.95 -
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