<P> The M9 was updated to the M9A1 in 2006 . It added--among other things--a 1 - slot Picatinny rail for the attachment of lights, lasers, and other accessories to the weapon . The M9A1 has more aggressive front and backstrap checkering and a beveled magazine well for easier reloading of the weapon . M9A1 pistols are sold with physical vapor deposition (PVD) coated magazines developed to better withstand the conditions in the sandy environments in Iraq and Afghanistan . </P> <P> The M9 was further updated to M9A3 (the M9A2 concept never went into production) in 2015 . The main updates to M9A3 were: </P> <Ul> <Li> 17 - round magazine </Li> <Li> a 3 - slot Picatinny rail </Li> <Li> earth - tone finish </Li> <Li> thinner vertical grip for improved control and less conspicuous concealed carry </Li> <Li> removable wrap - around grip that can be swapped between Vertec - style and' old' M9 style </Li> <Li> removable sights so that users can select sights material and construction (e.g. luminescent dot sights for dark situations or taller sights for use with a suppressor) </Li> <Li> universal slide, which makes the gun convertible from decocker - safety to decocker - only mode </Li> <Li> sand - resistant magazine in bevelled shape for blind reloading </Li> </Ul> <Li> 17 - round magazine </Li>

How many bullets in a 9mm beretta clip