There
are four basic components of a stock set as seen above: a buttstock, a
pistol grip, a gas tube cover and handguard. Stock sets can
vary from wood to polymer and even metal. Stock sets
are chosen based on the laws during the time of manufacturer
and the climate in
which the rifle will be exposed to. Thus one would want to
consider what environment they will be working in, as it could
affect the guns ability to function.
There
are three main classifications of AK stocks, all of which are
influenced by U.S. law. The first classification of AK
stock sets are imported pre-ban pistol grip versions.
These stock sets were issued to pre-89 ban AKs (as pictured
above) that were imported into the United States. The stock
sets can be made of wood, polymer, metal and can fold or
retract. For example: Polytech Legend, Styer Maadi,
Hungarian SA-85M, Norinco rifles, and Yugo imports. All
of these rifles incorporate pre-ban pistol grip versions of
the stock sets. Some of which are issued with folding or
retractable stocks. Pre-89 ban rifles do not have any
restrictions on what type of stock set you put on it.
However, make sure that you do have a pre-89 ban AK or you
will be in violation of U.S. law. However some post-89 ban AKs
were issued with pre-ban style stock sets. This is
because the ban only applied to imported weapons, thus
domestically made AKs were still allowed to have pistol grip
stocks. It was not until the 1994 ban that prohibited
pre-ban style stocks sets on domestically made
AKs.
The
second classification of stock sets are post-ban sporterized
versions (as seen to the right). These stocks were issued to
post-89 ban and up imported weapons. It wasn't until
1994 that they were issued to domestically produced AKs after
the 1994 ban. The U.S. government believes that these
stock sets make the gun less deadly and more appropriate for
civilian use. After the 1989 ban, imported firearms were
not allowed to have more than one feature on a list that were
considered inappropriate for civilian use. In 1994
domestically made firearms fell under the same law, except
they were allowed two bad features. This stock set was
designed to allow the importation of AKs after the 1989 ban
and successfully bypassed the governments laws. However
the guns that did have this stock also did not have the
following items: bayonet lug, pistol grip, flash hider,
folding stock or a threaded muzzle. It was and still is
illegal to add one of these items to a rifle that falls under
this law, unless you replace one bad feature with another. As
a result a new classification of stocks sets were produced to
bypass this law and allow people to have two bad features on
their post-ban rifle.
The
third classification of AK stock sets are U.S. made post ban
versions. These stock sets were produced to bypass the
1989 and 1994 bans, which prohibited pistol grips on post-ban
imported AKs. The stock sets are made in the U.S. to comply
with section 922(r) of the ban. In conjunction with
other U.S. made parts the stock sets allowed people to put a
pistol grip on their imported post-ban AK. This is done
by reducing the total number of imported parts on the weapon,
reclassifying it as U.S. made. Thus people were allowed
two bad features on their AKs, giving the rifle back its
military look. This became very popular with firearms owners,
giving birth to a new wave of pre-ban style rifles.
Today there are over seven different manufacturers of U.S.
part kits. U.S. stock set versions now come in the
following configurations wood, polymer, metal and pinned
folding versions. A pinned folding version allows the
owner to give their rifle the pre-ban folding look while
remaining legal.
Below
are some other versions of various stock sets which the AK was
issued with. They each have different classifications
and legalities that accompany
them.
Under Folding 
Para-Trooper 
Pistol Handguard 
Polymer Fixed 
AK-47.net
does not claim to be able to interpret the law, you should
check with your local and State authorities concerning the
regulations of these rifles.