To get an armor do:
    object aobj;

    aobj = clone_object("obj/armor");

For customization the following routines are available :

You must call these functions:

set_name(n) 
    string n. Sets the name and short description to n.
    Sets long description to short + ".\n"

These are the optional functions:

set_short(s) 
    string s. Sets the short description to s and the long to short + ".\n"

set_long(l)
    string l. Sets the long description to l.

set_value(v) 
    int v. Sets the selling value to v.

set_weight(w) 
    int w. Sets the weight to w.

set_ac(a) { ac = a; }
    int a. Sets the armor class to a. A random value up to 'a' is subtracted
    from the hit.

set_alias(a) { alias = a; }
    string a. Sets an alias name if armor.

set_type(t) { type = t };
    string t. Sets the type of armor to t. Only one of every type can be worn.
    These are the types you can use: helmet, amulet, armor, shield, ring, 
    glove, cloak and boot. 
	You can set an arbitrary name but we strongly suggest that you only 
    use these. Default is armor. The armor class of every worn armor is added 
    together.

set_arm_light(l) 
    int l. Makes the armor shine like a lamp of strenght l.