I am a new owner and I was looking at a lazer for my two pistols. Its a basic inexpensive lazer. It states that it universally fits any 'CMR-201' rail size. I did a cursory search for this ... is there a standard size for a picatinny rail, is this CMR-201 the standard size, etc. Granted the google search I did was small I did not dig very deeply but I am not seeing this 'CMR-201' mentioned anywhere. I looked for a 'rail basics' thread here as well and I am not finding it.
Can anyone point me somewhere where I can read up on rail types?
P
Can anyone point me somewhere where I can read up on rail types?
P

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