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
Raddlock 91/G3 (7.62x51/.308) Magazine Sled
Raddlock
Now: $11.65Was: $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 only be able to be loaded through the ejection port...Now: $11.65Was: $12.95 -
Out Of StockOn Sale
HK MP5 Magazine Floorplate - 10mm / .40 S&W
H&K Heckler & Koch
Now: $13.46Was: $14.95New HK German MP5/40 Magazine Floor PlateNow: $13.46Was: $14.95 -
On Sale
HK USPC, P2000 Magazine Floorplate - .40 S&W - 12 Round- BLEMISHED
H&K Heckler & Koch
Now: $12.90Was: $22.95H&K 12 Round HK P2000/USPC .40 S&W Floor Plate - 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. Compatible With: HK USP Compact 40...Now: $12.90Was: $22.95 -
On Sale
HK MG3 50 Round Assault Drum
H&K Heckler & Koch
Now: $25.16Was: $27.95H&K MG3 50 Round Assault Drum H&K manufactured 50-round drum for the MG3. Unissued, but may have light marks or dust from long-term storage. Clips onto MG3 feed trays. With minor modifications, these can be run on HK21, HK21E, and HK51B setups...Now: $25.16Was: $27.95 -
On Sale
KCI 30 Round MP5 9mm Magazine - 10 Pack - Cerakoted
KCI
Now: $314.95Was: $349.95KCI 30 Round MP5 9mm Magazine - 10 Pack Get reliable performance and a splash of style with the KCI 30 Round MP5 9mm Magazine 10-Pack. Cerakoted for durability, this pack includes two magazines in each of five distinct colors—perfect for quick...Now: $314.95Was: $349.95 -
On Sale
HK/HKP 14 Round HK VP9SK Complete Magazine
HKP HK Parts / Heckler & Koch
Now: $62.96Was: $69.95H&K/HKP 14 Round HK VP9SK Complete Magazine HK Parts modifies an existing 12 round magazine with a +2 extension to create a fully functional 14 round magazine. Specifications: 4-1/2" overall length Compatible With: HK VP9SKNow: $62.96Was: $69.95 -
On Sale
HK VP9, P30 Magazine Extension Kit +10 - Cerakote Black
HKP HK Parts
Now: $55.96Was: $69.95Magazine Extension Kit +10 – Cerakote Black - HK VP9, HK P30 HK Parts magazine extension +10 kit adds 10 additional rounds to the HK VP9/P30 magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly...Now: $55.96Was: $69.95 -
On Sale
HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard
H&K Heckler & Koch
Now: $8.05Was: $8.9510 Round HK USP .40 S&W Full Size Standard Magzine Floor Plate Compatible With: HK USP 40 Full Size S&W 10 Round MagazineNow: $8.05Was: $8.95 -
On Sale
HK 5 Round HK USC .45 ACP Magazine
H&K Heckler & Koch
Now: $52.16Was: $57.95HK German Factory 5 Round USC .45 Magazine This is the only magazine that HK offers for the HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible With: All HK USC carbinesNow: $52.16Was: $57.95 -
On Sale
HK45 Grip Bearing With Lockout Device
H&K Heckler & Koch
Now: $24.25Was: $26.95HK 45 Grip Bearing With Lockout DeviceNow: $24.25Was: $26.95 -
On Sale
HK G36 (5.56/.223) 10 Round Factory Magazine - FDE
H&K Heckler & Koch
Now: $79.16Was: $87.95HK G36 10 Round Magazine in Flat Dark Earth (FDE) Compatible With: G36 G36K G36C Double Stack Capacity Magwell Converted SL8's Specifications: Capacity: 10-rounds Condition: New, rare find Manufacturer: HK GermanyNow: $79.16Was: $87.95 -
On Sale
HK CC9 Magazine Locking Plate - 12 Round
H&K Heckler & Koch
Now: $5.36Was: $5.95H&K CC9 Magazine Locking Plate - 12 Round Locking plate for H&K CC9 12-round magazine. Secures the floor plate and internal components to the magazine body. German-made by H&K. Compatible With: HK CC9Now: $5.36Was: $5.95