Glock G17 Gen5 9mm vs Smith & Wesson M&P 9 M2.0 Full Size OR 9mm

These two full-size 9mms carry the same 17+1 rounds and share a 6.5" sight radius, but they are not the same size or weight. The M&P weighs 29.0 oz against the G17's 24.97 oz, a 4.03 oz gap, and it is the slimmer gun at 1.16" wide against 1.34". Its grip is 0.23" taller (5.7" vs 5.47") on a slide 0.55" shorter (7.4" vs 7.95"). Smith & Wesson lists the M&P trigger at 4.5 lb against the Glock's 5.8 lb; Apex sells a drop-in kit if the M&P's take-up still bothers you. The M&P Full Size OR ships with an optic-cut slide that the standard G17 Gen5 lacks (Glock's MOS variant is a separate SKU). The G17 ships with three magazines to the M&P's two, and it sits inside the deepest pistol aftermarket on the market.

Pick the Glock G17 Gen5 if:

• You want the lighter gun: 24.97 oz against 29.0 oz, 4 oz off the belt
• You want the deepest aftermarket of any pistol — more holsters, sights, triggers, and replacement parts than the M&P line, which is itself second only to Glock
• You want three magazines in the box instead of two, plus parts compatibility with every Glock 17-pattern magazine including aftermarket 33-rounders

Pick the Smith & Wesson M&P 9 M2.0 Full Size OR if:

• You want a factory optic cut included on the base model — the standard G17 Gen5 has no cut, and the Glock MOS variant adds height-stacked adapter plates rather than direct mounting
• You want the 4.5 lb factory trigger, 1.3 lb lighter than the Glock's 5.8 lb
• You want the more aggressive grip texture for wet-hand retention, accepting that it can chew through thin undershirts during appendix carry

Both are striker-fired polymer full-size 9mms with the same 17+1 capacity, comparable barrel length, and Picatinny rails for full-size weapon lights. The decision lands on 4 oz of weight, the trigger, the optic cut, and how much aftermarket depth matters.