Collector's Corner
The Collectors Corner is your source for rare, discontinued, and hard-to-find H&K parts and accessories. Featuring non-replenishable inventory for MP5, MP5K, G3, HK91, and more, this section is curated for collectors, builders, and restoration experts.
From factory originals to legacy surplus, these parts are no longer in production and extremely limited. Once an item sells out, it's gone for good.
No restocks. No replacements. No second chances.
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HK G36 Magazine - 30 Round - 5.56 / .223
H&K Heckler & Koch
$124.95HK German G36 30 Round Magazine HK German 30-round magazine, designed to perfectly fit all G36, G36K, and G36C variants, as well as converted SL8's with the G36 magwell. These are brand-new, top-quality magazines straight from the factory. Keep in mind...$124.95 -
HK33, HK53, HK93 Magazine - 40 Round 5.56x45mm / .223 / 300
H&K Heckler & Koch
$119.95HK93, HK33, HK53 - 40 Round Magazine - Genuine German HK - Professionally Refinished HK Factory German 40 round surplus magazine that has been professionally disassembled, inspected, bead blasted, cerakoted and cured to look as close to new as possible...$119.95 -
HK416, MR556 Magazine - 30 Round - Tan
H&K Heckler & Koch
$149.9530 Round Magazine with Window - Sand Tan - Gen 3 - Heckler & Koch Factory German HK 30-round Gen 3 polymer magazine. These magazines come bulk packed from HK and therefore are not individually packaged. ***We have a limited number of these...$149.95 -
HK MP5 ACR Stock and Adapter
Magpul
$599.95HK MP5 Magpul ACR Stock with HKP Adapter: The HKP adapter and Magpul ACR stock combo is a complete, drop-in ready unit. Magpul discontinued production of the ACR stock and we have just a few units left. Grab yours while you...$599.95 -
HK P7M13 13 Round Magazine - EXC - Ultra Rare
H&K Heckler & Koch
$599.95H&K HK P7M13 13 Round Magazine - Excellent/Like new After an extensive search, we have finally discovered a stash of rare and highly coveted 13-round 9mm P7M13 magazines with the sought-after LEO markings. Despite showing some signs of wear, these...$599.95 -
HK416, MR556 30 Round Magazine - RAL8000
H&K Heckler & Koch
$199.95HK 416/MR556 30 Round Magazine - RAL 8000 Heckler & Koch reliability and durability in a 30 round 5.56 mm Polymer Magazine. Designed to provide optimal ammunition feeding for any M16/M4/AR15-type weapon, the HK 30-Round Polymer Magazine can be used...$199.95 -
HK21, FMP Drum Hanger & 100rd Drum
H&K Heckler & Koch
$1,288.95H&K HK21/FMP Drum Hanger & 100rd Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long been discontinued and are essential for completing a proper HK21 or...$1,288.95 -
HK UMP (.45 ACP) 25 Round Magazine - German LEO Markings - Used
H&K Heckler & Koch
$149.95German HK UMP .45 25 Round Magazine - Used Used 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 converted to accept UMP magazines. A perfect compliment...$149.95 -
Out Of Stock
HK91, G3 , PTR Magazine - 100 Round Drum
Beta C-Mag
$839.95Beta C-Mag (7.62x51/.308) 100 Round Drum Magazine Includes C-MAG magazine in 7.62MM,308 G3/HK91 with clear covers, personal loader, black magazine pouch with carry strap, technical/owner's manual, and graphite dry lubricant. No longer in production and...$839.95 -
HK21E Feed Mechanism - Complete - 7.62x51/.308
H&K Heckler & Koch
$22,495.95HK21E Feed Mechanism Complete - German HK - DM1 Links New genuine HK date-coded and marked 21E complete feed mechanism. These are the last of the genuine feed mechs available and due to the HK officially discontinuing the 21E, no additional factory units...$22,495.95 -
HK MP5 Trigger Group Burst - 4 Position - 013F - RARE - Like New
H&K Heckler & Koch
$2,479.95H&K HK MP5 4 Position Burst Trigger Group 0,1,3,F - Like New These rare trigger groups are in exceptional condition. Featuring a 4-position burst (0, 1, 3, F) trigger pack paired with the incredibly rare S, E, 3F, and F engraved housing...$2,479.95 -
HK MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F
H&K Heckler & Koch
$3,099.95H&K MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F Each trigger group is brand new and factory fresh, directly from HK, designed specifically for push pin style factory MG's. The 4 position, 2 round burst MP5 trigger group is exceptionally rare and...$3,099.95