Full size is also very heavy which makes it a little more difficult to have a precise aiming
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But honestly for home defense a semi auto shotgun is a better choice since we simply need to point towards the perpetrator’s direction and fire LOL
"Very" heavy? Maybe once you get into the all-metal frames, but for the polymer guns I can't say that I remember any significant difference that affected my shooting (though since I'm still a beginner, it's not like I have great precision in the first place).
I shot a S&W M&P M2.0 full size (4.5"? 5"?), CZ P-10 C, and Walther PDP Compact 4" during my first day of testing.
I had the best accuracy with the full size M&P, but I assumed that had more to do with the barrel length (all three were iron sights, no red dots).
Mine is all metal. Pretty heavy. It is not going make me miss a shot but compared to a compact size the aiming is a little easier. And i had totally forgot about the polymeter ones 