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ZPS 2

Two windows on each side of the slide forward of the ejection port and aggressive mini-ports at the top edges. Standard rear serrations.
ZPS 3

Three windows on each side of the slide forward of the ejection port. Large port on topstrap. Carved rear serations.
IBS

One window on each side of the slide forward of the ejection port. Port forward of the sight on topstrap. Front and rear carved serrations.
Z Series

We love windows and fancy cuts, however we know its not for everyone. The Z Series is a core product line that features pure function.
Top Picks from our lineup
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Z Series Ported Complete Upper for Glock 19 Gen 3
Price range: $469.00 through $499.00

Integrated Blowhole System (IBS) Complete Upper for Glock 19 Gen 3
Price range: $579.00 through $609.00

ZPS.2 Complete Upper for Glock 19 Gen 3
Price range: $529.00 through $559.00

Integrated Blowhole System (IBS) Complete Upper for Glock 17 Gen 3
Price range: $579.00 through $609.00

Night Fision Co-Witness Sights for standard Glock 19/17/17L/47/34
Price range: $49.00 through $101.00 Price range: $41.65 through $85.85

Night Fision Co-Witness Sights for Slimline Glock 43/43x/48
Price range: $49.00 through $101.00 Price range: $41.65 through $85.85

IBS Ported Barrel for Glock® 17 Gen 1-4
Price range: $169.00 through $179.00 Price range: $152.10 through $161.10

Flush and Crown Barrel for Glock® 17 Gen 1-4
Price range: $159.00 through $169.00 Price range: $143.10 through $152.10

Side Ported Barrel for Glock® 17 Gen 1-4
Price range: $159.00 through $169.00 Price range: $143.10 through $152.10
