Everything

[thorn]

what is a list of every part that i would need to build a custom mag? thanks.

[nate2k191]

a valve with bolt (E, X, classic, or RT)
a body rail with sear (that fits valve)
a trigger frame (electro or mech)
a body (ULE, stainless steel, or custom)
any other parts are your choice ( expansion chamber, drop, ASA, barrel, hopper, tank(nitro for all valves except classic))

[Chronobreak]

dont forget little things like field strip screw
or front frame screw but yeah thats bout it.