Umarex Glock G17 / G45 Gas Magazine - 20 Rounds of Licensed Perfection

When you are running a Glock - nothing beats the reliability of an official Umarex (VFC) magazine - Designed specifically for the Gen5 G17 and the crossover G45 - this 20-round black metal magazine is the gold standard for your sidearm - It features the iconic Glock branding and a revised baseplate that makes indexing your reloads smoother than ever before - If you want your RIF to cycle exactly as the engineers intended - this is the only mag you should be reaching for -

Key Features & Performance

• Full Metal Construction - A heavy-duty alloy body that provides excellent thermal conductivity for consistent gas expansion -
• Gen5 Baseplate Design - Flared and textured to match the Gen5 grip - allowing for faster stripping of "stuck" mags during high-stress drills -
• High-Flow Output Valve - Optimized for the VFC-system blowback housing to ensure a crisp - snappy recoil impulse every time -
• Follower Lock - The follower can be held down for easier loading of those 20 rounds without fighting the spring tension -
• Double-Stack Efficiency - Precision-engineered feed lips to prevent double-feeding or "stovepiping" even under rapid fire -

The Pro Take

The 2.6475.1 is widely considered the most reliable Glock magazine on the market - Unlike cheaper clones - the tolerances on the feed lips are incredibly tight - meaning you won't suffer from mid-cap syndrome or BBs spilling into your slide - The gas efficiency on these is also top-tier - usually allowing you to clear two full loads of BBs on a single charge of Green Gas - If you are serious about your kit and want a magazine that won't vent gas the moment the temperature drops - this is the investment to make -

UK Spec & Site Performance

In the UK - we deal with everything from sun-baked summer days to freezing winter mornings - This magazine handles "Standard Green Gas" perfectly for UK site limits - keeping your Glock comfortably around the 300-330 FPS mark - On a classic British woodland site - the thermal mass of the metal body helps resist "cool-down" - allowing you to transition from your primary to your sidearm without a drop in power - It is fully compliant with UKARA site regulations and fits perfectly into standard 9mm or "Fast-Mag" pouches found at any UK CQB arena -

Friendly FAQ

Will this fit the Gen3 or Gen4 Umarex Glocks?

Yes - while it is designed with the Gen5 / G45 styling - it is backwards compatible with all Umarex (VFC) Glock 17 models -

Can I use CO2 in this magazine?

No - this is a dedicated gas magazine - attempting to use CO2 will damage the seals and the internal valves -

Does it come with the Glock logo on the base?

Absolutely - as an officially licensed Umarex product - it features the authentic Glock markings on the baseplate and the side of the mag body -

How many BBs does it actually hold?

The capacity is 20 rounds - but we recommend loading 19 to reduce stress on the feed lips and ensure the first shot chambers perfectly -