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KRISS USA MagEx2 .45 ACP +17 Capacity Magazine Extension Kit 3-Pack - Alpine White - KVA-MX2K45AP01
Product Description
Maximizing the ammunition payload of a hard-hitting heavy caliber platform like the .45 ACP KRISS Vector or full-size Glock handguns introduces an immediate tactical and physical bottleneck: standard factory capacity restrictions. Standard factory flush-fit Glock 21 magazines top out at 13 rounds, forcing shooters into frequent manual reloading splits that fracture training momentum and limit fire volume. Furthermore, generic, poorly engineered clip extensions can distort under immense coil compression, causing feed lips to stretch and leading to nose-diving cartridges or structural double-feed failures. The **KRISS USA MagEx2 .45 ACP +17 Magazine Extension Kit 3-Pack** completely eliminates these processing limits, packaging three elite, ultra-high-capacity conversion sleeves built to instantly boost your payload threshold.
Precision-manufactured inside KRISS USA’s advanced domestic facilities to meet strict technical specifications, this original equipment manufacturer (OEM) bundle offers unyielding structural integrity. Each MagEx2 base kit is constructed from premium, lightweight **glass-reinforced industrial composites** that deliver high impact resistance and thermal stability. The exterior is finished in a clean, distinctive **Alpine White finish**, offering an exact color match for Alpine White Vector platforms. Rather than introducing aftermarket feeding variables, the MagEx2 system utilizes your existing factory Glock 21 magazine's OEM inner channel and polymer follower. This smart engineering choice preserves the legendary tracking reliability of Glock’s feed mechanics while maximizing volume.
In high-velocity live-fire tracking sequences or demanding pistol-caliber carbine (PCC) strings, the inner mechanics of this extension kit guarantee uniform cartridge travel. Adding a staggering **+17 rounds of extra space**, each kit transforms a standard 13-round Glock 21 container into a massive **30-round heavy payload block**. To support this deep vertical stack, KRISS USA packs each extension sleeve with a customized, extra-long high-tensile spring coil. This heavy-duty spring supplies continuous, linear upward speed, ensuring heavy .45 Auto projectiles cycle smoothly from the first snap down to final-round slide lockback. With three complete kits bundled under a single part code, this pack dramatically scales up your operational field endurance.
*Armorer Bench Notes & Technical Assembly Guidance: The KRISS USA KVA-MX2K45AP01 product profile contains three (3) individual magazine extension kits, each including an extended outer sleeve, baseplate, and high-capacity spring. CRITICAL COMPATIBILITY NOTE: This is a component extension kit and **does not include the actual Glock 21 magazine bodies**. Sourcing authentic OEM Glock 21 standard-capacity 13-round inserts (Gen 3 or later) is mandatory for assembly. This setup is entirely incompatible with reduced-capacity 10-round magazines or compact G30 shells due to differing body geometry. When conducting the build on your workbench, slide off the factory Glock floorplate and retention insert while keeping the follower safe, then substitute the factory spring for the extra-long KRISS spring. Slide the custom white MagEx2 sleeve over the steel-lined Glock core until it seats tightly, and snap the extended base floor lock home. High-Tension Loading Advisory: Due to the incredibly firm upward pressure of the fresh, extended spring matrix, hand-loading cartridges beyond round 20 can cause extreme thumb fatigue; utilizing a mechanical speed-loader (such as a Maglula UpLULA tool) is highly recommended to protect your hands and speed up your staging cycles.
Key Features
- 3-Pack Capacity Multiplying Bundle: Supplies three complete premium +17 round conversion sleeves under one part code, instantly giving you three 30-round .45 ACP containers.
- Authentic Alpine White Finish: Styled in a sharp, non-reflective Alpine White tone, providing a flawless factory finish match for white KRISS Vector carbines and pistols.
- Glass-Reinforced Composite Sleeve: Formed from an advanced, lightweight polymer composite that shrugs off concrete drop impacts, hard field transit, and aggressive cleaning solvents.
- Glock OEM Tracking Maintenance: Built to utilize genuine factory Glock 21 magazine bodies and followers, maintaining factory-original feeding geometries and anti-tilt tracking reliability.
- Custom Extra-Long Drive Springs: Each kit comes pre-packed with a specialized, heavy-duty extended compression spring to ensure steady vertical cartridge travel under full volume pressure.
Product Specifications
- Brand: KRISS USA, Inc.
- Model Line: MagEx2 Ultra-High Capacity Component Series
- MPN/SKU: KVA-MX2K45AP01 (Also tracked as KVA-MX2K45AP01-3PK)
- UPC Code Profile: 811154033208 & 811607032840
- Caliber Focus: .45 ACP (.45 Auto / 7.62x21mm equivalent profile dimensions)
- Capacity Extension Rating: Adds +17 Rounds to Existing Base Tube
- Assembled Combined Capacity: 30 Rounds Total (When mated to standard 13rd G21 Magazine)
- Package Quantity Configuration: 3 Complete Extension Kits per Retail Box
- Chassis Outer Material: High-Impact Glass-Fiber Reinforced Polymer Composite
- Enclosure Finish Tone: Non-Reflective Alpine White
- Included Internal Hardware: 3x Custom Extended High-Tensile Drive Springs
- Primary Firearm Integration: KRISS Vector .45 ACP (Pistol, SBR, and Carbine Models)
- Secondary Pistol Cross-Fitment: Glock G21, G21SF, G41 (All Generations 3, 4, and 5)
- Kit Extension Components: Extended Base Plate, Outer Sleeve Shield, Extended Drive Spring
- Net Mass Per Extension: Approximately 2.65 Ounces (Ultra-Light Empty Structural Profile)
- Country of Manufacture: United States of America
