Glock G45 Gen5 MOS 9mm vs Walther PDP Full Size 9mm

Both are optic-ready duty 9mms at the same 1.34" width. The Walther PDP Full Size 9mm holds 18 rounds to the Glock G45 Gen5 MOS 9mm's 17, has a 0.48" longer barrel (4.5" vs 4.02") and a 0.72" longer sight radius (6.9" vs 6.18"), weighs 0.52 oz less (24.0 oz vs 24.52 oz), lists a 0.2 lb lighter trigger (5.6 lb vs 5.8 lb), and adds an adjustable rear sight and an interchangeable backstrap for $46.00 less at MSRP ($699.00 vs $745.00). The Glock is the shorter of the two at 7.44" long against 8.0", and ships with three magazines to the PDP's two.

Pick the Glock G45 Gen5 MOS if:

• You want the shorter package: 7.44" vs 8.0" long
• Three magazines come in the box rather than two
• Holster and parts availability for the Glock footprint matters to you

Pick the Walther PDP Full Size if:

• You want 18 rounds instead of 17 and a 4.5" barrel instead of 4.02"
• The 6.9" sight radius is 0.72" longer, with an adjustable rear sight
• MSRP is $46.00 lower ($699.00 vs $745.00), with an interchangeable backstrap and a 0.2 lb lighter listed trigger

Both mount an optic without gunsmithing, so the trade is the PDP's longer barrel, extra round and adjustable sights against the G45's shorter overall size and the Glock support ecosystem.