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Old 02-05-2013, 10:59   #66
Magnum Brown
Registered User
Join Date: Feb 2013
Posts: 2
I'm new to the Forum and guns. About 6 months ago I purchased a Glock g21 .45 ACP, with 3 mags (One extended)

Based on the pics, I'm pretty sure it's a Gen 2.5. My question is... How can I tell the difference between a gen 2.5 and 3? (Sorry if this is a silly question, but Im a newb)
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