Highest quality and performance



Glock Full size 9/40 +4/+3rd extension

$ 45.51
Out of stock
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Product Description:

This magazine extension is designed to add +4/+3 rounds to Full size Glock 9mm/.40S&W magazines, coming to a total of 21+1 9mm or 18+1 .40S&W.

Deep serrations on all sides allows for excellent grip in any weather conditions.


Simple and reliable locking function that features a captive set screw to prevent it from being lost.


Available in Brass or Aluminium.

The brass version uses its weight to help the magazines drop freely.

The aluminium version is available in three different finishes: Raw Aluminium, Cerakote Armor Black and Stained Titanium.

We also offer custom laser engraving on the bottom, making it easy to keep track of your magazines.


Length from the bottom of the magazine: 0.54" (13.7)mm.

Weight: Brass - 2.3oz (65g) / Aluminium - 0.74oz (21g)

Material: CW614N Brass / 6082-T6 Aluminium

Available surface finish: Brass, Raw Aluminium, Cerakote Armor Black, Stained Titanium

Custom laser engraving available.

Please note that since the engraving is made to order, this option may have slightly longer delivery times than usual.

Fits the IPSC box.

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