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This is a short reference to aid our customers in making a
choice of the AR15 that best fits their needs and budget. There are
books written about the AR 15 that cover every aspect of the gun from its
beginning at Armalite to the modern AR 15's of today. Here we're
only going to cover the very basics.
A1 - A2 - A3
You buddy says to you, "my AR15 is an A3 M4"....
what does he mean? Here're the basics of the "A", which
has to do with the AR 15 upper.
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A1: Has a carry handle that is fixed and
limited adjustment on sights. The rear sights are adjustable for
elevation only... no windage adjustment. With the proper tool,
most A1 rifles can be adjusted for windage at the front
sight.
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A2: A fixed carry handle with sights that
are adjustable for both windage and elevation.
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A3: A removable carry handle with sights
that can be adjusted for both windage and elevation. The AR15 A3
carry handle is attached to a weaver/picatinny to which a scope or
other accessories can be mounted if the carry handle is removed.
So what is the M4? -- The M4 has to do with
the barrel and the most recognizable thing is the indentation in the
barrel for the attachment of a grenade launcher. See the PIC below
of your friends A3 M4
Removable carry handle - Adjustable sights - M4 barrel
Some AR15's come with no carry handle and are generally
referred to as "Flat Top". There are two basic types of
flat top.
The AR15 Flat Top with front sight.
This is a popular choice of many who want to mount a scope
or other sighting system on their AR 15. Generally, if you are going
to mount a scope on this gun you will need to buy a riser to mount on the
rail to get the scope high enough to see above the front sight. This
gun gives the option of buying a custom rear sight.
The AR15 Flat Top with no front sights
Another popular choice for those wanting to mount a scope
or other sighting system or for those who want to mount a complete
sighting system on their gun.
There is a whole array of options that can be added to the
AR15. Carry handles with various type of sights or just sights that
mount on the rail - lights - lasers - holographic sights - you name
it. We carry many of the accessories on our sister
sight: CheaperScopes.com
Thanks -- Hope this helped
The Gun House Team
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